From 5e767462db0e547b034d27d68d86122f50e39089 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Tue, 8 Oct 2019 21:11:24 -0700
Subject: [PATCH 01/21] WIP commit.

---
 .clang-format          |   12 +
 .gitignore             |    5 +
 .npmignore             |    5 +
 CHANGELOG.md           |   14 +
 LICENSE                |   28 +
 README.md              |   39 +
 karma.conf.js          |   58 +
 karma.proxy.js         |   23 +
 koa-proxy.js           |    9 +
 package-lock.json      | 5008 ++++++++++++++++++++++++++++++++++++++++
 package.json           |   32 +-
 rollup.config.js       |   13 +
 src/controller.ts      |   79 +
 src/declarations.ts    |   25 +
 src/index.ts           |   22 +
 src/runner-proxy.ts    |   15 +
 src/stats-collector.ts |   90 +
 src/suite-child.ts     |   58 +
 src/util.ts            |   43 +
 test/child-1.html      |   18 +
 test/child-2.html      |   18 +
 test/test-suite.js     |    1 +
 test/top-suite.html    |   20 +
 tsconfig.json          |   26 +
 tslint.json            |   62 +
 25 files changed, 5720 insertions(+), 3 deletions(-)
 create mode 100644 .clang-format
 create mode 100644 .gitignore
 create mode 100644 .npmignore
 create mode 100644 CHANGELOG.md
 create mode 100644 LICENSE
 create mode 100644 README.md
 create mode 100644 karma.conf.js
 create mode 100644 karma.proxy.js
 create mode 100644 koa-proxy.js
 create mode 100644 package-lock.json
 create mode 100644 rollup.config.js
 create mode 100644 src/controller.ts
 create mode 100644 src/declarations.ts
 create mode 100644 src/index.ts
 create mode 100644 src/runner-proxy.ts
 create mode 100644 src/stats-collector.ts
 create mode 100644 src/suite-child.ts
 create mode 100644 src/util.ts
 create mode 100644 test/child-1.html
 create mode 100644 test/child-2.html
 create mode 100644 test/test-suite.js
 create mode 100644 test/top-suite.html
 create mode 100644 tsconfig.json
 create mode 100644 tslint.json

diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..62cdf4c
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,12 @@
+BasedOnStyle: Google
+AlignAfterOpenBracket: AlwaysBreak
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+BinPackArguments: false
+# This breaks async functions sometimes, see
+#     https://github.com/Polymer/polymer-analyzer/pull/393
+# BinPackParameters: false
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d82a244
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+/.vscode/
+/node_modules/
+/lib/
+/mocha-suite-child.js
+/mocha-suite-child.d.ts
diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..fcba1f1
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,5 @@
+mocha-suite-child.js
+rollup.config.js
+tsconfig.json
+tslint.json
+test/
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..dd063bc
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,14 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
+
+<!--
+   PRs should document their user-visible changes (if any) in the
+   Unreleased section, uncommenting the header as necessary.
+-->
+
+<!-- ## Unreleased -->
+<!-- Add new unreleased items here -->
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..743ba35
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,28 @@
+BSD 3-Clause License
+
+Copyright (c) 2019 The Polymer Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of the copyright holder nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..1b4775d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,39 @@
+# mocha-suite-child (of mine)
+
+Intended for use when running mocha in web-browsers, runs mocha test suites defined in HTML documents and include the results as if they are part of the main context.
+
+An example `.html` file using `mocha-suite-child` package to include 3 child suites in its run:
+
+```html
+<script src="./node_modules/mocha/mocha.js"></script>
+<!-- Load mocha-suite-child right after you mocha for best results. -->
+<script src="./node_modules/mocha-suite-child/mocha-suite-child.js"></script>
+<script src="./node_modules/chai/chai.js"></script>
+<script>
+  // Typical mocha setup bit.
+  mocha.setup('tdd');
+
+  // Defines the children of the current mocha context.  Note that
+  // the same test suite files can be reused as children, with different
+  // configurations. These must be defined at the top-level, i.e.
+  // they can't be nested within Mocha's own `suite()` declarations.
+	suiteChild('Juggling apples', './juggle.html?obj=apples');
+  suiteChild('Juggling chainsaws', './juggle.html?obj=chainsaws');
+  suiteChild('Bicycling tests', './bicycling.html');
+  
+  // You can still have local tests defined here if you want.
+  suite('A regular test suite', () => {
+    test('A regular test', () => {
+      chai.assert(true);
+    });
+  });
+  
+  // Returns a MochaSuiteChild.RunnerProxy if child suites are defined.
+  // This is because the child suites *must* execute before the local
+  // runner executes in order to satisfy the reporter's expectation
+  // of accurate test totals. This RunnerProxy should work identically 
+  // to a Mocha.Runner for all intents and purposes.
+  mocha.run();
+</script>
+```
+
diff --git a/karma.conf.js b/karma.conf.js
new file mode 100644
index 0000000..fc15a81
--- /dev/null
+++ b/karma.conf.js
@@ -0,0 +1,58 @@
+// Karma configuration
+// Generated on Tue Sep 24 2019 11:48:17 GMT-0700 (PDT)
+
+module.exports = function (config) {
+  config.set({
+
+    // base path that will be used to resolve all patterns (eg. files, exclude)
+    basePath: '',
+
+    // frameworks to use
+    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+    frameworks: ['mocha'],
+
+    // list of files / patterns to load in the browser
+    files: [
+      './mocha-suite-child.js',
+      './test/test-suite.js'
+    ],
+
+    // list of files / patterns to exclude
+    exclude: [],
+
+    // preprocess matching files before serving them to the browser
+    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+    preprocessors: {
+    },
+
+    // test results reporter to use
+    // possible values: 'dots', 'progress'
+    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+    reporters: ['spec'],
+
+    // web server port
+    port: 9876,
+
+    // enable / disable colors in the output (reporters and logs)
+    colors: true,
+
+    // level of logging
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    logLevel: config.LOG_INFO,
+
+    // enable / disable watching file and executing tests whenever any file changes
+    autoWatch: true,
+
+    // start these browsers
+    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+    browsers: ['Chrome'],
+
+    // Continuous Integration mode
+    // if true, Karma captures browsers, runs the tests and exits
+    singleRun: false,
+
+    // Concurrency level
+    // how many browser should be started simultaneous
+    concurrency: Infinity
+  })
+}
diff --git a/karma.proxy.js b/karma.proxy.js
new file mode 100644
index 0000000..0455184
--- /dev/null
+++ b/karma.proxy.js
@@ -0,0 +1,23 @@
+/**
+ * @license
+ * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at
+ * http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at
+ * http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at
+ * http://polymer.github.io/PATENTS.txt
+ */
+const Koa = require('koa');
+const mount = require('koa-mount');
+const staticFiles = require('koa-static');
+const { nodeResolve } = require('koa-node-resolve');
+const { esmTransform } = require('koa-esm-transform');
+
+module.exports = (karma) => new Koa()
+  .use(esmTransform())
+  .use(mount('/base', new Koa().use(nodeResolve()).use(staticFiles('.'))))
+  .use(karma);
diff --git a/koa-proxy.js b/koa-proxy.js
new file mode 100644
index 0000000..6a8af2d
--- /dev/null
+++ b/koa-proxy.js
@@ -0,0 +1,9 @@
+const Koa = require('koa');
+const { nodeResolve } = require('koa-node-resolve');
+const { esmTransform } = require('koa-esm-transform');
+const mount = require('koa-mount');
+const staticFiles = require('koa-static');
+new Koa()
+  .use(esmTransform())
+  .use(mount('/base', new Koa().use(nodeResolve()).use(staticFiles('.'))))
+  .listen(9000);
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..9dcd653
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,5008 @@
+{
+  "name": "mocha-suite-child",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@babel/code-frame": {
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
+      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "@babel/core": {
+      "version": "7.6.3",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.6.3.tgz",
+      "integrity": "sha512-QfQ5jTBgXLzJuo7Mo8bZK/ePywmgNRgk/UQykiKwEtZPiFIn8ZqE6jB+AnD1hbB1S2xQyL4//it5vuAUOVAMTw==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "^7.5.5",
+        "@babel/generator": "^7.6.3",
+        "@babel/helpers": "^7.6.2",
+        "@babel/parser": "^7.6.3",
+        "@babel/template": "^7.6.0",
+        "@babel/traverse": "^7.6.3",
+        "@babel/types": "^7.6.3",
+        "convert-source-map": "^1.1.0",
+        "debug": "^4.1.0",
+        "json5": "^2.1.0",
+        "lodash": "^4.17.13",
+        "resolve": "^1.3.2",
+        "semver": "^5.4.1",
+        "source-map": "^0.6.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
+      }
+    },
+    "@babel/generator": {
+      "version": "7.6.3",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.6.3.tgz",
+      "integrity": "sha512-hLhYbAb3pHwxjlijC4AQ7mqZdcoujiNaW7izCT04CIowHK8psN0IN8QjDv0iyFtycF5FowUOTwDloIheI25aMw==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.6.3",
+        "jsesc": "^2.5.1",
+        "lodash": "^4.17.13",
+        "source-map": "^0.6.1"
+      }
+    },
+    "@babel/helper-annotate-as-pure": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.0.0.tgz",
+      "integrity": "sha512-3UYcJUj9kvSLbLbUIfQTqzcy5VX7GRZ/CCDrnOaZorFFM01aXp1+GJwuFGV4NDDoAS+mOUyHcO6UD/RfqOks3Q==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-builder-binary-assignment-operator-visitor": {
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-builder-binary-assignment-operator-visitor/-/helper-builder-binary-assignment-operator-visitor-7.1.0.tgz",
+      "integrity": "sha512-qNSR4jrmJ8M1VMM9tibvyRAHXQs2PmaksQF7c1CGJNipfe3D8p+wgNwgso/P2A2r2mdgBWAXljNWR0QRZAMW8w==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-explode-assignable-expression": "^7.1.0",
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-call-delegate": {
+      "version": "7.4.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-call-delegate/-/helper-call-delegate-7.4.4.tgz",
+      "integrity": "sha512-l79boDFJ8S1c5hvQvG+rc+wHw6IuH7YldmRKsYtpbawsxURu/paVy57FZMomGK22/JckepaikOkY0MoAmdyOlQ==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-hoist-variables": "^7.4.4",
+        "@babel/traverse": "^7.4.4",
+        "@babel/types": "^7.4.4"
+      }
+    },
+    "@babel/helper-define-map": {
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/helper-define-map/-/helper-define-map-7.5.5.tgz",
+      "integrity": "sha512-fTfxx7i0B5NJqvUOBBGREnrqbTxRh7zinBANpZXAVDlsZxYdclDp467G1sQ8VZYMnAURY3RpBUAgOYT9GfzHBg==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-function-name": "^7.1.0",
+        "@babel/types": "^7.5.5",
+        "lodash": "^4.17.13"
+      }
+    },
+    "@babel/helper-explode-assignable-expression": {
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-explode-assignable-expression/-/helper-explode-assignable-expression-7.1.0.tgz",
+      "integrity": "sha512-NRQpfHrJ1msCHtKjbzs9YcMmJZOg6mQMmGRB+hbamEdG5PNpaSm95275VD92DvJKuyl0s2sFiDmMZ+EnnvufqA==",
+      "dev": true,
+      "requires": {
+        "@babel/traverse": "^7.1.0",
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-function-name": {
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.1.0.tgz",
+      "integrity": "sha512-A95XEoCpb3TO+KZzJ4S/5uW5fNe26DjBGqf1o9ucyLyCmi1dXq/B3c8iaWTfBk3VvetUxl16e8tIrd5teOCfGw==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-get-function-arity": "^7.0.0",
+        "@babel/template": "^7.1.0",
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-get-function-arity": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0.tgz",
+      "integrity": "sha512-r2DbJeg4svYvt3HOS74U4eWKsUAMRH01Z1ds1zx8KNTPtpTL5JAsdFv8BNyOpVqdFhHkkRDIg5B4AsxmkjAlmQ==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-hoist-variables": {
+      "version": "7.4.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-hoist-variables/-/helper-hoist-variables-7.4.4.tgz",
+      "integrity": "sha512-VYk2/H/BnYbZDDg39hr3t2kKyifAm1W6zHRfhx8jGjIHpQEBv9dry7oQ2f3+J703TLu69nYdxsovl0XYfcnK4w==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.4.4"
+      }
+    },
+    "@babel/helper-member-expression-to-functions": {
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.5.5.tgz",
+      "integrity": "sha512-5qZ3D1uMclSNqYcXqiHoA0meVdv+xUEex9em2fqMnrk/scphGlGgg66zjMrPJESPwrFJ6sbfFQYUSa0Mz7FabA==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.5.5"
+      }
+    },
+    "@babel/helper-module-imports": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-module-imports/-/helper-module-imports-7.0.0.tgz",
+      "integrity": "sha512-aP/hlLq01DWNEiDg4Jn23i+CXxW/owM4WpDLFUbpjxe4NS3BhLVZQ5i7E0ZrxuQ/vwekIeciyamgB1UIYxxM6A==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-module-transforms": {
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/helper-module-transforms/-/helper-module-transforms-7.5.5.tgz",
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+      "dev": true,
+      "requires": {
+        "@babel/helper-module-imports": "^7.0.0",
+        "@babel/helper-simple-access": "^7.1.0",
+        "@babel/helper-split-export-declaration": "^7.4.4",
+        "@babel/template": "^7.4.4",
+        "@babel/types": "^7.5.5",
+        "lodash": "^4.17.13"
+      }
+    },
+    "@babel/helper-optimise-call-expression": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.0.0.tgz",
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+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-plugin-utils": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.0.0.tgz",
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+      "dev": true
+    },
+    "@babel/helper-regex": {
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/helper-regex/-/helper-regex-7.5.5.tgz",
+      "integrity": "sha512-CkCYQLkfkiugbRDO8eZn6lRuR8kzZoGXCg3149iTk5se7g6qykSpy3+hELSwquhu+TgHn8nkLiBwHvNX8Hofcw==",
+      "dev": true,
+      "requires": {
+        "lodash": "^4.17.13"
+      }
+    },
+    "@babel/helper-remap-async-to-generator": {
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-remap-async-to-generator/-/helper-remap-async-to-generator-7.1.0.tgz",
+      "integrity": "sha512-3fOK0L+Fdlg8S5al8u/hWE6vhufGSn0bN09xm2LXMy//REAF8kDCrYoOBKYmA8m5Nom+sV9LyLCwrFynA8/slg==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-annotate-as-pure": "^7.0.0",
+        "@babel/helper-wrap-function": "^7.1.0",
+        "@babel/template": "^7.1.0",
+        "@babel/traverse": "^7.1.0",
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-replace-supers": {
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+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
+      }
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "ws": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
+      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
+      "dev": true,
+      "requires": {
+        "async-limiter": "~1.0.0",
+        "safe-buffer": "~5.1.0",
+        "ultron": "~1.1.0"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+          "dev": true
+        }
+      }
+    },
+    "xmlhttprequest-ssl": {
+      "version": "1.5.5",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
+      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=",
+      "dev": true
+    },
+    "xtend": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-2.2.0.tgz",
+      "integrity": "sha1-7vax8ZjByN6vrYsXZaBNrUoBxak=",
+      "dev": true
+    },
+    "y18n": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+      "dev": true
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
+    },
+    "yargs": {
+      "version": "13.3.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.0.tgz",
+      "integrity": "sha512-2eehun/8ALW8TLoIl7MVaRUrg+yCnenu8B4kBlRxj3GJGDKU1Og7sMXPNm1BYyM1DOJmTZ4YeN/Nwxv+8XJsUA==",
+      "dev": true,
+      "requires": {
+        "cliui": "^5.0.0",
+        "find-up": "^3.0.0",
+        "get-caller-file": "^2.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^3.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^13.1.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
+      }
+    },
+    "yargs-parser": {
+      "version": "13.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
+      "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      }
+    },
+    "yargs-unparser": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-1.6.0.tgz",
+      "integrity": "sha512-W9tKgmSn0DpSatfri0nx52Joq5hVXgeLiqR/5G0sZNDoLZFOr/xjBUDcShCOGNsBnEMNo1KAMBkTej1Hm62HTw==",
+      "dev": true,
+      "requires": {
+        "flat": "^4.1.0",
+        "lodash": "^4.17.15",
+        "yargs": "^13.3.0"
+      }
+    },
+    "yeast": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
+      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
+      "dev": true
+    },
+    "ylru": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/ylru/-/ylru-1.2.1.tgz",
+      "integrity": "sha512-faQrqNMzcPCHGVC2aaOINk13K+aaBDUPjGWl0teOXywElLjyVAB6Oe2jj62jHYtwsU49jXhScYbvPENK+6zAvQ==",
+      "dev": true
+    }
+  }
+}
diff --git a/package.json b/package.json
index e6ccc39..8b087a7 100644
--- a/package.json
+++ b/package.json
@@ -2,11 +2,37 @@
   "name": "mocha-suite-child",
   "version": "1.0.0",
   "description": "Intended for use when running mocha in web-browsers, enables running mocha test suites defined in HTML documents and include their results in the top-level report as if they were part of the main context.",
-  "main": "index.js",
+  "main": "mocha-suite-child.js",
+  "files": [
+    "mocha-suite-child.js",
+    "lib/"
+  ],
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "build": "tsc && rollup -c",
+    "test": "karma-proxy run --single-run --proxyHostname 127.0.0.1 --proxyPort 9000"
   },
   "keywords": [],
   "author": "The Polymer Project authors",
-  "license": "BSD-3-Clause"
+  "license": "BSD-3-Clause",
+  "devDependencies": {
+    "@types/chai": "^4.2.3",
+    "@types/mocha": "^5.2.7",
+    "chai": "^4.2.0",
+    "clang-format": "^1.2.4",
+    "karma": "^4.3.0",
+    "karma-chrome-launcher": "^3.1.0",
+    "karma-mocha": "^1.3.0",
+    "karma-spec-reporter": "0.0.32",
+    "koa": "^2.8.1",
+    "koa-esm-transform": "^1.0.0-pre.1",
+    "koa-karma-proxy": "^1.0.0-pre.5",
+    "koa-mount": "^4.0.0",
+    "koa-node-resolve": "^1.0.0-pre.6",
+    "koa-static": "^5.0.0",
+    "mocha": "^6.2.0",
+    "rollup": "^1.21.4",
+    "rollup-plugin-node-builtins": "^2.1.2",
+    "tslint": "^5.20.0",
+    "typescript": "^3.6.3"
+  }
 }
diff --git a/rollup.config.js b/rollup.config.js
new file mode 100644
index 0000000..cb83eb1
--- /dev/null
+++ b/rollup.config.js
@@ -0,0 +1,13 @@
+module.exports = {
+  context: 'window',
+  external: ['mocha'],
+  input: 'lib/index.js',
+  output: {
+    file: 'mocha-suite-child.js',
+    format: 'iife',
+    globals: {
+      mocha: 'Mocha'
+    },
+    name: 'MochaSuiteChild'
+  }
+}
diff --git a/src/controller.ts b/src/controller.ts
new file mode 100644
index 0000000..0ee5030
--- /dev/null
+++ b/src/controller.ts
@@ -0,0 +1,79 @@
+/**
+ * @license
+ * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at
+ * http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at
+ * http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at
+ * http://polymer.github.io/PATENTS.txt
+ */
+
+import Mocha from 'mocha';
+import {RunnerProxy} from './runner-proxy';
+import {SuiteChild} from './suite-child';
+
+export const CONTAINER_ID = 'mocha-suite-child-container';
+
+export type DoneCallback = (error?: Error) => void;
+
+export class Controller {
+  children = new Map<string, SuiteChild>();
+  loadTimeout = 60_000;
+
+  private _container?: HTMLElement;
+  private _callback?: DoneCallback;
+
+  get container(): HTMLElement {
+    if (!this._container) {
+      let container = document.getElementById(CONTAINER_ID) as HTMLElement;
+      if (!container) {
+        container = document.createElement('div');
+        container.id = CONTAINER_ID;
+        container.style.display = 'none';
+        document.body.appendChild(container);
+      }
+      this._container = container;
+    }
+    return this._container;
+  }
+
+  get parent(): Controller|undefined {
+    return window.parent && window.parent !== window ?
+        window.parent.MochaSuiteChild :
+        undefined;
+  }
+
+  suiteChild(labelOrURL: string, url?: string) {
+    const suiteChild = new SuiteChild(this, labelOrURL, url);
+    this.children.set(suiteChild.url, suiteChild);
+  }
+
+  done(error?: Error) {
+    if (this._callback) {
+      this._callback(error);
+    }
+  }
+
+  run(callback?: DoneCallback) {
+    this._callback = callback;
+  }
+
+  notifySuiteChildDone(_child: SuiteChild, _error?: Error) {
+    // TODO(usergenic): store the error so we can report on all errors in suite
+    // children.
+
+    let allDone = true;
+    for (const child of this.children.values()) {
+      if (child.running) {
+        allDone = false;
+      }
+    }
+    if (allDone) {
+      this.done();
+    }
+  }
+}
diff --git a/src/declarations.ts b/src/declarations.ts
new file mode 100644
index 0000000..75075cc
--- /dev/null
+++ b/src/declarations.ts
@@ -0,0 +1,25 @@
+/**
+ * @license
+ * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at
+ * http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at
+ * http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at
+ * http://polymer.github.io/PATENTS.txt
+ */
+
+import Mocha from 'mocha';
+import {Controller} from './controller';
+
+declare global {
+  interface Window {
+    mocha: Mocha;
+    Mocha: typeof Mocha;
+    MochaSuiteChild: Controller;
+    suiteChild: typeof Controller.prototype.suiteChild;
+  }
+}
diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 0000000..cbe2413
--- /dev/null
+++ b/src/index.ts
@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at
+ * http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at
+ * http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at
+ * http://polymer.github.io/PATENTS.txt
+ */
+
+import {Controller} from './controller';
+import {patchMocha} from './patch-mocha';
+
+window.MochaSuiteChild = new Controller();
+window.suiteChild = (labelOrURL: string, url?: string) =>
+    window.MochaSuiteChild.suiteChild(labelOrURL, url);
+
+patchMocha(window.mocha);
diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
new file mode 100644
index 0000000..c7a553e
--- /dev/null
+++ b/src/runner-proxy.ts
@@ -0,0 +1,15 @@
+/**
+ * @license
+ * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at
+ * http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at
+ * http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at
+ * http://polymer.github.io/PATENTS.txt
+ */
+
+export class RunnerProxy {}
diff --git a/src/stats-collector.ts b/src/stats-collector.ts
new file mode 100644
index 0000000..cb8f925
--- /dev/null
+++ b/src/stats-collector.ts
@@ -0,0 +1,90 @@
+'use strict';
+/**
+(The MIT License)
+Copyright (c) 2011-2018 JS Foundation and contributors, https://js.foundation
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+/**
+ * The following was extracted from
+ * https://github.com/mochajs/mocha/blob/master/lib/stats-collector.js
+ */
+
+/**
+ * Test statistics collector.
+ *
+ * @typedef {Object} StatsCollector
+ * @property {number} suites - integer count of suites run.
+ * @property {number} tests - integer count of tests run.
+ * @property {number} passes - integer count of passing tests.
+ * @property {number} pending - integer count of pending tests.
+ * @property {number} failures - integer count of failed tests.
+ * @property {Date} start - time when testing began.
+ * @property {Date} end - time when testing concluded.
+ * @property {number} duration - number of msecs that testing took.
+ */
+
+/**
+ * Provides stats such as test duration,
+ * number of tests passed / failed etc.
+ *
+ * @public
+ * @memberof Mocha
+ * @param {Runner} runner
+ */
+export const createStatsCollector = (runner: Mocha.Runner) => {
+  var stats:
+      Mocha.Stats = {suites: 0, tests: 0, passes: 0, pending: 0, failures: 0};
+
+  if (!runner) {
+    throw new TypeError('Missing runner argument');
+  }
+
+  runner.stats = stats;
+
+  runner.once('start', function() {
+    stats.start = new Date();
+  });
+
+  runner.on('suite', function(suite) {
+    suite.root || stats.suites++;
+  });
+
+  runner.on('pass', function() {
+    stats.passes++;
+  });
+
+  runner.on('fail', function() {
+    stats.failures++;
+  });
+
+  runner.on('pending', function() {
+    stats.pending++;
+  });
+
+  runner.on('test end', function() {
+    stats.tests++;
+  });
+
+  runner.once('end', function() {
+    stats.end = new Date();
+    // To coerce to numbers and make TS compiler happy, we use unary `+` prefix
+    // for date arithmetic.
+    stats.duration = +stats.end - +stats.start!;
+  });
+}
diff --git a/src/suite-child.ts b/src/suite-child.ts
new file mode 100644
index 0000000..5682ac1
--- /dev/null
+++ b/src/suite-child.ts
@@ -0,0 +1,58 @@
+/**
+ * @license
+ * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at
+ * http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at
+ * http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at
+ * http://polymer.github.io/PATENTS.txt
+ */
+
+import {Controller} from './controller';
+
+export class SuiteChild {
+  label: string;
+  url: string;
+  running: boolean = false;
+
+  private controller: Controller;
+  private iframe: HTMLIFrameElement;
+  private timeoutId?: number;
+
+  constructor(controller: Controller, labelOrURL: string, url?: string) {
+    this.controller = controller;
+    this.label = labelOrURL;
+    if (typeof url === 'undefined') {
+      url = labelOrURL;
+    }
+    this.iframe = document.createElement('iframe');
+
+    // We need to ensure that relative URLs are represented explicitly with
+    // leading `./` or they'll be interpreted as absolute when we set the `src`
+    // of the iframe.
+    this.iframe.src =
+        !(url.match(/^[\.\/]/) || url.match(/:/)) ? `./${url}` : url;
+
+    // The IFrame expands the URL, so we'll adopt the expanded version.
+    this.url = this.iframe.src;
+  }
+
+  done(error?: Error) {
+    this.running = false;
+    clearTimeout(this.timeoutId);
+    setTimeout(() => this.controller.container.removeChild(this.iframe), 1);
+    this.controller.notifySuiteChildDone(this, error);
+  }
+
+  run() {
+    this.running = true;
+    this.controller.container.appendChild(this.iframe);
+    this.timeoutId = window.setTimeout(
+        () => this.done(new Error(`Timed out loading "${this.url}"`)),
+        this.controller.loadTimeout);
+  }
+}
diff --git a/src/util.ts b/src/util.ts
new file mode 100644
index 0000000..9d16249
--- /dev/null
+++ b/src/util.ts
@@ -0,0 +1,43 @@
+/**
+ * @license
+ * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at
+ * http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at
+ * http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at
+ * http://polymer.github.io/PATENTS.txt
+ */
+
+/**
+ * Copies over any properties from the source object onto the target object
+ * that are not already present on the target object.
+ * @param target Object to copy properties to.
+ * @param source Object to copy properties from.
+ */
+export function inherit(target: Object, source: Object): void {
+  const targetPropertyNames = allPropertyNames(target);
+  for (const propertyName of allPropertyNames(source)) {
+    if (targetPropertyNames.indexOf(propertyName) === -1) {
+      // @ts-ignore - It says that
+      target[propertyName] = source[propertyName];
+    }
+  }
+}
+
+/**
+ * List all property names for the Object.  Includes all properties up the
+ * prototype chain.
+ * @param object Instance to get property names from.
+ */
+function allPropertyNames(object: Object): string[] {
+  const propertyNames = Object.getOwnPropertyNames(object);
+  const prototype = Object.getPrototypeOf(object);
+  if (prototype) {
+    propertyNames.push.apply(propertyNames, allPropertyNames(prototype));
+  }
+  return propertyNames;
+}
diff --git a/test/child-1.html b/test/child-1.html
new file mode 100644
index 0000000..0e9d4e6
--- /dev/null
+++ b/test/child-1.html
@@ -0,0 +1,18 @@
+<link type="text/css" rel="stylesheet" href="../node_modules/mocha/mocha.css">
+<div id="mocha"></div>
+<script src="../node_modules/mocha/mocha.js"></script>
+<script src="../mocha-suite-child.js"></script>
+<script src="../node_modules/chai/chai.js"></script>
+<script>
+  var expect = chai.expect;
+  mocha.setup('tdd');
+  suite('suite child 1', () => {
+    test('test 1 in suite child 1', () => {
+      expect(1).equal(1);
+    });
+    test('test 2 in suite child 1', () => {
+      expect(2).equal(2);
+    });
+  });
+  mocha.run();
+</script>
diff --git a/test/child-2.html b/test/child-2.html
new file mode 100644
index 0000000..c1c2b0a
--- /dev/null
+++ b/test/child-2.html
@@ -0,0 +1,18 @@
+<link type="text/css" rel="stylesheet" href="../node_modules/mocha/mocha.css">
+<div id="mocha"></div>
+<script src="../node_modules/mocha/mocha.js"></script>
+<script src="../mocha-suite-child.js"></script>
+<script src="../node_modules/chai/chai.js"></script>
+<script>
+  var expect = chai.expect;
+  mocha.setup('tdd');
+  suite('suite child 2', () => {
+    test('test 1 in suite child 2', () => {
+      expect(1).equal(1);
+    });
+    test('test 2 in suite child 2', () => {
+      expect(2).equal(2);
+    });
+  });
+  mocha.run();
+</script>
diff --git a/test/test-suite.js b/test/test-suite.js
new file mode 100644
index 0000000..89ce5fc
--- /dev/null
+++ b/test/test-suite.js
@@ -0,0 +1 @@
+suiteChild('The Top-Suite', '/base/test/top-suite.html');
diff --git a/test/top-suite.html b/test/top-suite.html
new file mode 100644
index 0000000..1083d28
--- /dev/null
+++ b/test/top-suite.html
@@ -0,0 +1,20 @@
+<link type="text/css" rel="stylesheet" href="../node_modules/mocha/mocha.css">
+<div id="mocha"></div>
+
+<script src="../node_modules/mocha/mocha.js"></script>
+<script src="../mocha-suite-child.js"></script>
+<script src="../node_modules/chai/chai.js"></script>
+
+<script>
+  const expect = chai.expect;
+  mocha.setup('tdd');
+  suiteChild('Child Suite 1 with query "a"', 'child-1.html?query=a');
+  suiteChild('Child Suite 1 with query "b"', 'child-1.html?query=b');
+  suiteChild('Child Suite 2', 'child-2.html');
+  suite('oh hai', () => {
+    test('local test', () => {
+      expect(1).equal(1);
+    });
+  });
+  mocha.run();
+</script>
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..25b2496
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "downlevelIteration": true,
+    "target": "es5",
+    "module": "esnext",
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "outDir": "./lib/",
+    "rootDir": "./src/",
+    "strict": true,
+    "noImplicitAny": true,
+    "strictNullChecks": true,
+    "noImplicitThis": true,
+    "alwaysStrict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "moduleResolution": "node",
+    "esModuleInterop": true,
+    "lib": [
+      "dom"
+    ]
+  }
+}
diff --git a/tslint.json b/tslint.json
new file mode 100644
index 0000000..17719b7
--- /dev/null
+++ b/tslint.json
@@ -0,0 +1,62 @@
+{
+  "rules": {
+    "arrow-parens": true,
+    "class-name": true,
+    "curly": true,
+    "indent": [
+      true,
+      "spaces"
+    ],
+    "no-any": true,
+    "prefer-const": true,
+    "no-duplicate-variable": true,
+    "no-eval": true,
+    "no-internal-module": true,
+    "no-trailing-whitespace": true,
+    "no-var-keyword": true,
+    "one-line": [
+      true,
+      "check-open-brace",
+      "check-whitespace"
+    ],
+    "quotemark": [
+      true,
+      "single",
+      "avoid-escape"
+    ],
+    "semicolon": [
+      true,
+      "always"
+    ],
+    "trailing-comma": [
+      true,
+      "multiline"
+    ],
+    "triple-equals": [
+      true,
+      "allow-null-check"
+    ],
+    "typedef-whitespace": [
+      true,
+      {
+        "call-signature": "nospace",
+        "index-signature": "nospace",
+        "parameter": "nospace",
+        "property-declaration": "nospace",
+        "variable-declaration": "nospace"
+      }
+    ],
+    "variable-name": [
+      true,
+      "ban-keywords"
+    ],
+    "whitespace": [
+      true,
+      "check-branch",
+      "check-decl",
+      "check-operator",
+      "check-separator",
+      "check-type"
+    ]
+  }
+}

From d40cc255c8ae85571608422c3a192aa895760986 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Thu, 10 Oct 2019 13:20:08 -0700
Subject: [PATCH 02/21] WIP commit.

---
 src/runner-proxy.ts | 11 ++++++++++-
 tsconfig.json       |  3 ++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index c7a553e..f7990d3 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -12,4 +12,13 @@
  * http://polymer.github.io/PATENTS.txt
  */
 
-export class RunnerProxy {}
+import {inherit} from './util';
+import {Runner} from 'mocha';
+import {createStatsCollector} from './stats-collector';
+export class RunnerProxy {
+  constructor() {
+    createStatsCollector(this as unknown as Runner);
+  }
+}
+
+inherit(RunnerProxy.prototype, Runner.prototype);
\ No newline at end of file
diff --git a/tsconfig.json b/tsconfig.json
index 25b2496..6908ae7 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -20,7 +20,8 @@
     "moduleResolution": "node",
     "esModuleInterop": true,
     "lib": [
-      "dom"
+      "dom",
+      "es2015"
     ]
   }
 }

From 62077927b54297a305700553f0f1ae88ad4705f0 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Thu, 10 Oct 2019 16:12:41 -0700
Subject: [PATCH 03/21] WIP commit.

---
 src/controller.ts   |  77 +++++++++++++++++++++--
 src/patch-mocha.ts  |  67 ++++++++++++++++++++
 src/runner-proxy.ts | 148 +++++++++++++++++++++++++++++++++++++++++++-
 src/suite-child.ts  |  54 +++++++++++++---
 4 files changed, 327 insertions(+), 19 deletions(-)
 create mode 100644 src/patch-mocha.ts

diff --git a/src/controller.ts b/src/controller.ts
index 0ee5030..50953fe 100644
--- a/src/controller.ts
+++ b/src/controller.ts
@@ -12,21 +12,36 @@
  * http://polymer.github.io/PATENTS.txt
  */
 
-import Mocha from 'mocha';
+// import Mocha from 'mocha';
+// import {RunnerProxy} from './runner-proxy';
 import {RunnerProxy} from './runner-proxy';
 import {SuiteChild} from './suite-child';
 
 export const CONTAINER_ID = 'mocha-suite-child-container';
 
+export type ConnectedCallback = (error?: Error) => void;
 export type DoneCallback = (error?: Error) => void;
 
+/**
+ * The `window.MochaSuiteChild` property is an instance of Controller.  Its
+ * function is to be the global interface to register children via
+ * `suiteChild()` and provide affordances for the runners in iframes to callback
+ * and notify about their status.
+ */
 export class Controller {
-  children = new Map<string, SuiteChild>();
   loadTimeout = 60_000;
+  children = new Map<string, SuiteChild>();
+  runnerProxy: RunnerProxy = new RunnerProxy();
 
   private _container?: HTMLElement;
-  private _callback?: DoneCallback;
+  private connectedCallback?: ConnectedCallback;
 
+  /**
+   * This is a lazy-loaded property which will either find or create a container
+   * element to append the iframes for children.  If it creates the element, it
+   * will set its style to not be displayed.  If an existing container element
+   * is found, it will be up to the developer to manage style/display.
+   */
   get container(): HTMLElement {
     if (!this._container) {
       let container = document.getElementById(CONTAINER_ID) as HTMLElement;
@@ -41,25 +56,75 @@ export class Controller {
     return this._container;
   }
 
+  /**
+   * Returns the parent controller, i.e. controller in the parent window.
+   */
   get parent(): Controller|undefined {
     return window.parent && window.parent !== window ?
         window.parent.MochaSuiteChild :
         undefined;
   }
 
+  /**
+   * Returns the SuiteChild instance that created the iframe for the current
+   * context.
+   */
+  get suiteChildOfMine(): SuiteChild|undefined {
+    return this.parent && this.parent.children.get(document.location.href);
+  }
+
+  /**
+   * Registers a child of the current mocha suite.  Use an optional label to
+   * describe the suite:
+   *   `suiteChild('Apple juggling', '/test/juggling.html?object=apples')`
+   * Or skip the label and just provide the URL:
+   *   `suiteChild('/test/juggling.html?object=chainsaws')`
+   */
   suiteChild(labelOrURL: string, url?: string) {
     const suiteChild = new SuiteChild(this, labelOrURL, url);
     this.children.set(suiteChild.url, suiteChild);
   }
 
+  /**
+   * This
+   */
   done(error?: Error) {
-    if (this._callback) {
-      this._callback(error);
+    if (this._doneCallback) {
+      this._doneCallback(error);
     }
   }
 
   run(callback?: DoneCallback) {
-    this._callback = callback;
+    this._doneCallback = callback;
+    for (const child of this.children.values()) {
+      child.run();
+    }
+  }
+
+  /**
+   * Initiate all suite children and run the callback after all iframes report
+   * connected.
+   */
+  runChildren(connectedCallback: ConnectedCallback) {
+    this.connectedCallback = connectedCallback;
+    for (const child of this.children.values()) {
+      child.run(this.container, this.loadTimeout);
+    }
+  }
+
+  notifySuiteChildConnected(_child: SuiteChild) {
+    for (const child of this.children.values()) {
+      if (!child.connected) {
+        return;
+      }
+    }
+    const {connectedCallback} = this;
+    if (connectedCallback) {
+      connectedCallback();
+      this.connectedCallback = undefined;
+    } else {
+      throw new Error('notifySuiteChildConnected called out-of-sequence');
+    }
   }
 
   notifySuiteChildDone(_child: SuiteChild, _error?: Error) {
diff --git a/src/patch-mocha.ts b/src/patch-mocha.ts
new file mode 100644
index 0000000..241d056
--- /dev/null
+++ b/src/patch-mocha.ts
@@ -0,0 +1,67 @@
+/**
+ * @license
+ * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at
+ * http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at
+ * http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at
+ * http://polymer.github.io/PATENTS.txt
+ */
+
+import Mocha from 'mocha';
+
+/**
+ * Given the `window.mocha` object, wrap the `run` method to inject code to
+ * initiate the child suite runs and wait for them to report initial totals
+ * before executing the local mocha suite and connecting the reporter.  This is
+ * necessary because the reporter expects the runner to report the total number
+ * of tests at start time and the only way to know the totals of child suites is
+ * to wait for them to report.
+ */
+export const patchMocha = (mocha: Mocha) => {
+  const originalRun = mocha.run.bind(mocha);
+
+  mocha.run = (callback: (fn: number) => any) => {
+    const url = document.location.href;
+    const originalReporter = mocha['_reporter'];
+    const {runnerProxy, suiteChildOfMine} = window.MochaSuiteChild;
+
+    window.mocha.reporter(
+        PseudoReporterConstructor as unknown as Mocha.ReporterConstructor);
+
+    // Run all child suites, wait for them to provide their runner proxies so
+    // the local runner proxy can listen to them and obtain accurate test
+    // totals.
+    window.MochaSuiteChild.runChildren(() => {
+      // Note: We are relying on the fact that the `originalRun` is
+      originalRun(callback);
+
+      // If we are running in an iframe created by a controller in the parent
+      // window, then suiteChildOfMine will be the SuiteChild class that is
+      // managing the iframe.
+      if (suiteChildOfMine) {
+        // Connect the local runner proxy to the SuiteChild in the parent window
+        // that created the iframe the current context is running in.
+        suiteChildOfMine.notifyConnected(runnerProxy);
+      }
+    });
+
+    /**
+     * The API of `Mocha#reporter` is that it be given a constructor function
+     * that will `new` up an instance of a Reporter.  We already have a reporter
+     * instance, so our constructor will just be a function that hooks it up to
+     * the provided runner.
+     */
+    function PseudoReporterConstructor(
+        runner: Mocha.Runner, options: Mocha.MochaOptions) {
+      runnerProxy.listen(runner, url);
+      new originalReporter(runnerProxy, options);
+    }
+
+    return runnerProxy;
+  };
+}
diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index f7990d3..df51f53 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -12,13 +12,155 @@
  * http://polymer.github.io/PATENTS.txt
  */
 
-import {inherit} from './util';
 import {Runner} from 'mocha';
+
 import {createStatsCollector} from './stats-collector';
-export class RunnerProxy {
+import {inherit} from './util';
+
+export const MochaRunnerEvents = {
+  /**
+   * Emitted when {@link Hook} execution begins
+   */
+  EVENT_HOOK_BEGIN: 'hook',
+  /**
+   * Emitted when {@link Hook} execution ends
+   */
+  EVENT_HOOK_END: 'hook end',
+  /**
+   * Emitted when Root {@link Suite} execution begins (all files have been
+   * parsed and hooks/tests are ready for execution)
+   */
+  EVENT_RUN_BEGIN: 'start',
+  /**
+   * Emitted when Root {@link Suite} execution has been delayed via `delay`
+   * option
+   */
+  EVENT_DELAY_BEGIN: 'waiting',
+  /**
+   * Emitted when delayed Root {@link Suite} execution is triggered by user via
+   * `global.run()`
+   */
+  EVENT_DELAY_END: 'ready',
+  /**
+   * Emitted when Root {@link Suite} execution ends
+   */
+  EVENT_RUN_END: 'end',
+  /**
+   * Emitted when {@link Suite} execution begins
+   */
+  EVENT_SUITE_BEGIN: 'suite',
+  /**
+   * Emitted when {@link Suite} execution ends
+   */
+  EVENT_SUITE_END: 'suite end',
+  /**
+   * Emitted when {@link Test} execution begins
+   */
+  EVENT_TEST_BEGIN: 'test',
+  /**
+   * Emitted when {@link Test} execution ends
+   */
+  EVENT_TEST_END: 'test end',
+  /**
+   * Emitted when {@link Test} execution fails
+   */
+  EVENT_TEST_FAIL: 'fail',
+  /**
+   * Emitted when {@link Test} execution succeeds
+   */
+  EVENT_TEST_PASS: 'pass',
+  /**
+   * Emitted when {@link Test} becomes pending
+   */
+  EVENT_TEST_PENDING: 'pending',
+  /**
+   * Emitted when {@link Test} execution has failed, but will retry
+   */
+  EVENT_TEST_RETRY: 'retry'
+}
+
+interface ProxyEvent {
+  name: string, runner: Runner, url: string, extra: unknown[],
+}
+
+export class RunnerProxy implements Mocha.Runner {
+  eventBuffer: ProxyEvent[] = [];
+  currentRunner?: Runner;
+  private localRunner?: Runner;
+  private runBeginEmitted: boolean = false;
+  private runEndCount = 0;
+  private runnerCount = 0;
+
   constructor() {
+    // Important: If you don't call this function that attaches the stats
+    // objects to the runner instance, Mocha will just silently fail as it
+    // attempts to increment stats on the events like EVENT_TEST_PASS etc and
+    // then you will tear out your hair looking for why it isn't working.
     createStatsCollector(this as unknown as Runner);
   }
+
+  /**
+   * Listens for all relevant events emitted by the runner.
+   */
+  listen(runner: Mocha.Runner, url: string) {
+    if (runner instanceof Mocha.Runner) {
+      this.localRunner = runner;
+    }
+    this.total = this.total + runner.total;
+    for (const name of Object.values(MochaRunnerEvents)) {
+      runner.on(
+          name, (...extra) => this.proxyEvent({name, url, runner, extra}));
+    }
+  }
+
+  waitForChildren(children: Map<string, SuiteChild>, callback: Function) {
+  }
+
+  private proxyEvent(event: ProxyEvent) {
+    // If we are currently processing events for a different runner, we will
+    // just put this event into the buffer.
+    if (this.currentRunner && this.currentRunner !== event.runner) {
+      this.eventBuffer.push(event);
+      return;
+    }
+
+    if (event.name === MochaRunnerEvents.EVENT_RUN_BEGIN) {
+      this.currentRunner = event.runner;
+      if (!this.runBeginEmitted) {
+        this.runBeginEmitted = true;
+        this.emit(MochaRunnerEvents.EVENT_RUN_BEGIN);
+      }
+      return;
+    }
+
+    if (event.name === MochaRunnerEvents.EVENT_RUN_END) {
+      ++this.runEndCount;
+
+      // We can emit the run end event only when we have started listening to
+      // the local mocha runner and have heard run end events from all runners
+      // we are listening to.
+      if (this.localRunner && this.runEndCount === this.runnerCount) {
+        this.emit(MochaRunnerEvents.EVENT_RUN_END);
+        return;
+      }
+    }
+
+    // Lets use the label to prepend the child's suite title if we are running
+    // in a suite child context.
+    if (event.name === MochaRunnerEvents.EVENT_SUITE_BEGIN) {
+      const {suiteChildOfMine} = window.MochaSuiteChild;
+      if (suiteChildOfMine) {
+        const suite = event.extra[0] as unknown as Mocha.Suite;
+        suite.title = `${suiteChildOfMine.label} ${suite.title}`;
+      }
+    }
+
+    // Lets just proxy that event.
+    this.emit(event.name, ...event.extra);
+  }
 }
 
-inherit(RunnerProxy.prototype, Runner.prototype);
\ No newline at end of file
+// `RunnerEventProxy` instances inherit methods and properties of
+// `Mocha.Runner` for the `EventEmitter` functionality.
+inherit(RunnerProxy.prototype, Object.getPrototypeOf(Runner.prototype));
+export interface RunnerProxy extends Mocha.Runner {}
diff --git a/src/suite-child.ts b/src/suite-child.ts
index 5682ac1..f75ad01 100644
--- a/src/suite-child.ts
+++ b/src/suite-child.ts
@@ -13,14 +13,21 @@
  */
 
 import {Controller} from './controller';
+import {MochaRunnerEvents, RunnerProxy} from './runner-proxy';
 
+/**
+ * Defines and manages the execution of an external HTML document containing a
+ * separate Mocha test suite, which happens in an IFrame.
+ */
 export class SuiteChild {
+  connected: boolean = false;
   label: string;
-  url: string;
   running: boolean = false;
+  url: string;
 
   private controller: Controller;
   private iframe: HTMLIFrameElement;
+  private runnerProxy?: RunnerProxy;
   private timeoutId?: number;
 
   constructor(controller: Controller, labelOrURL: string, url?: string) {
@@ -33,7 +40,7 @@ export class SuiteChild {
 
     // We need to ensure that relative URLs are represented explicitly with
     // leading `./` or they'll be interpreted as absolute when we set the `src`
-    // of the iframe.
+    // of the IFrame.
     this.iframe.src =
         !(url.match(/^[\.\/]/) || url.match(/:/)) ? `./${url}` : url;
 
@@ -41,18 +48,45 @@ export class SuiteChild {
     this.url = this.iframe.src;
   }
 
-  done(error?: Error) {
-    this.running = false;
-    clearTimeout(this.timeoutId);
-    setTimeout(() => this.controller.container.removeChild(this.iframe), 1);
-    this.controller.notifySuiteChildDone(this, error);
+  /**
+   * Called from the child iframe and given the runner proxy from that context.
+   * We do this so that the local context's runner proxy is able to listen to
+   * the runner proxy's events and obtain its registered total number of tests
+   * for the reporter.
+   */
+  notifyConnected(runnerProxy: RunnerProxy) {
+    this.connected = true;
+    this.runnerProxy = runnerProxy;
+    this.controller.runnerProxy.listen(runnerProxy, this.url);
+    this.controller.notifySuiteChildConnected(this);
+    this.runnerProxy.on(MochaRunnerEvents.EVENT_RUN_END, () => this.done());
   }
 
-  run() {
+  /**
+   * Appends the IFrame for the test suite to the container element which
+   * initiates the loading the document at the location specified by the
+   * IFrame's src attribute.  When that document has loaded and its `mocha.run`
+   * has been called, this `SuiteChild` instance will be notified by having its
+   * `notifyConnected` method called by the child IFrame, with its runner proxy.
+   */
+  run(container: HTMLElement, loadTimeout: number) {
     this.running = true;
-    this.controller.container.appendChild(this.iframe);
+
+    // TODO(usergenic): Test this.
+    // If this is a repeat execution of the suite child, we may need to remove
+    // it from the DOM before re-appending it.
+    if (this.iframe.parentElement === container) {
+      this.iframe.removeChild(this.iframe);
+    }
+    container.appendChild(this.iframe);
     this.timeoutId = window.setTimeout(
         () => this.done(new Error(`Timed out loading "${this.url}"`)),
-        this.controller.loadTimeout);
+        loadTimeout);
+  }
+
+  private done(error?: Error) {
+    this.running = false;
+    clearTimeout(this.timeoutId);
+    this.controller.notifySuiteChildDone(this, error);
   }
 }

From 944cceca928f200f379fc3482f7931b03e836f1d Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 10:02:27 -0700
Subject: [PATCH 04/21] WIP commit

---
 src/controller.ts   | 51 +++++++++++++--------------------------------
 src/patch-mocha.ts  | 25 +++++++++++-----------
 src/runner-proxy.ts |  3 ---
 src/suite-child.ts  |  5 ++++-
 4 files changed, 31 insertions(+), 53 deletions(-)

diff --git a/src/controller.ts b/src/controller.ts
index 50953fe..1b12d98 100644
--- a/src/controller.ts
+++ b/src/controller.ts
@@ -17,10 +17,8 @@
 import {RunnerProxy} from './runner-proxy';
 import {SuiteChild} from './suite-child';
 
-export const CONTAINER_ID = 'mocha-suite-child-container';
-
+export const DEFAULT_CONTAINER_ID = 'mocha-suite-child-container';
 export type ConnectedCallback = (error?: Error) => void;
-export type DoneCallback = (error?: Error) => void;
 
 /**
  * The `window.MochaSuiteChild` property is an instance of Controller.  Its
@@ -29,6 +27,7 @@ export type DoneCallback = (error?: Error) => void;
  * and notify about their status.
  */
 export class Controller {
+  containerId = DEFAULT_CONTAINER_ID;
   loadTimeout = 60_000;
   children = new Map<string, SuiteChild>();
   runnerProxy: RunnerProxy = new RunnerProxy();
@@ -44,10 +43,10 @@ export class Controller {
    */
   get container(): HTMLElement {
     if (!this._container) {
-      let container = document.getElementById(CONTAINER_ID) as HTMLElement;
+      let container = document.getElementById(this.containerId) as HTMLElement;
       if (!container) {
         container = document.createElement('div');
-        container.id = CONTAINER_ID;
+        container.id = this.containerId;
         container.style.display = 'none';
         document.body.appendChild(container);
       }
@@ -73,6 +72,14 @@ export class Controller {
     return this.parent && this.parent.children.get(document.location.href);
   }
 
+  /**
+   * Defer to console.log for now.  Maybe do something more configurable and
+   * interesting later.
+   */
+  log(...msg: unknown[]) {
+    console.log(window.location.href, ...msg);
+  }
+
   /**
    * Registers a child of the current mocha suite.  Use an optional label to
    * describe the suite:
@@ -81,31 +88,17 @@ export class Controller {
    *   `suiteChild('/test/juggling.html?object=chainsaws')`
    */
   suiteChild(labelOrURL: string, url?: string) {
+    this.log(`defined suiteChild ${labelOrURL}`);
     const suiteChild = new SuiteChild(this, labelOrURL, url);
     this.children.set(suiteChild.url, suiteChild);
   }
 
-  /**
-   * This
-   */
-  done(error?: Error) {
-    if (this._doneCallback) {
-      this._doneCallback(error);
-    }
-  }
-
-  run(callback?: DoneCallback) {
-    this._doneCallback = callback;
-    for (const child of this.children.values()) {
-      child.run();
-    }
-  }
-
   /**
    * Initiate all suite children and run the callback after all iframes report
    * connected.
    */
   runChildren(connectedCallback: ConnectedCallback) {
+    this.log(`runChildren()`);
     this.connectedCallback = connectedCallback;
     for (const child of this.children.values()) {
       child.run(this.container, this.loadTimeout);
@@ -113,6 +106,7 @@ export class Controller {
   }
 
   notifySuiteChildConnected(_child: SuiteChild) {
+    this.log(`notifySuiteChildConnected ${_child.label}`);
     for (const child of this.children.values()) {
       if (!child.connected) {
         return;
@@ -126,19 +120,4 @@ export class Controller {
       throw new Error('notifySuiteChildConnected called out-of-sequence');
     }
   }
-
-  notifySuiteChildDone(_child: SuiteChild, _error?: Error) {
-    // TODO(usergenic): store the error so we can report on all errors in suite
-    // children.
-
-    let allDone = true;
-    for (const child of this.children.values()) {
-      if (child.running) {
-        allDone = false;
-      }
-    }
-    if (allDone) {
-      this.done();
-    }
-  }
 }
diff --git a/src/patch-mocha.ts b/src/patch-mocha.ts
index 241d056..09775da 100644
--- a/src/patch-mocha.ts
+++ b/src/patch-mocha.ts
@@ -36,19 +36,7 @@ export const patchMocha = (mocha: Mocha) => {
     // Run all child suites, wait for them to provide their runner proxies so
     // the local runner proxy can listen to them and obtain accurate test
     // totals.
-    window.MochaSuiteChild.runChildren(() => {
-      // Note: We are relying on the fact that the `originalRun` is
-      originalRun(callback);
-
-      // If we are running in an iframe created by a controller in the parent
-      // window, then suiteChildOfMine will be the SuiteChild class that is
-      // managing the iframe.
-      if (suiteChildOfMine) {
-        // Connect the local runner proxy to the SuiteChild in the parent window
-        // that created the iframe the current context is running in.
-        suiteChildOfMine.notifyConnected(runnerProxy);
-      }
-    });
+    window.MochaSuiteChild.runChildren(() => originalRun(callback));
 
     /**
      * The API of `Mocha#reporter` is that it be given a constructor function
@@ -58,7 +46,18 @@ export const patchMocha = (mocha: Mocha) => {
      */
     function PseudoReporterConstructor(
         runner: Mocha.Runner, options: Mocha.MochaOptions) {
+      window.MochaSuiteChild.log(`I'm in the PRC`);
       runnerProxy.listen(runner, url);
+      
+      // If we are running in an iframe created by a controller in the parent
+      // window, then suiteChildOfMine will be the SuiteChild class that is
+      // managing the iframe.
+      if (suiteChildOfMine) {
+        // Connect the local runner proxy to the SuiteChild in the parent window
+        // that created the iframe the current context is running in.
+        suiteChildOfMine.notifyConnected(runnerProxy);
+      }
+
       new originalReporter(runnerProxy, options);
     }
 
diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index df51f53..b5b4f46 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -113,9 +113,6 @@ export class RunnerProxy implements Mocha.Runner {
     }
   }
 
-  waitForChildren(children: Map<string, SuiteChild>, callback: Function) {
-  }
-
   private proxyEvent(event: ProxyEvent) {
     // If we are currently processing events for a different runner, we will
     // just put this event into the buffer.
diff --git a/src/suite-child.ts b/src/suite-child.ts
index f75ad01..10203c8 100644
--- a/src/suite-child.ts
+++ b/src/suite-child.ts
@@ -55,6 +55,7 @@ export class SuiteChild {
    * for the reporter.
    */
   notifyConnected(runnerProxy: RunnerProxy) {
+    this.controller.log(`notifyConnected: ${this.url}`);
     this.connected = true;
     this.runnerProxy = runnerProxy;
     this.controller.runnerProxy.listen(runnerProxy, this.url);
@@ -87,6 +88,8 @@ export class SuiteChild {
   private done(error?: Error) {
     this.running = false;
     clearTimeout(this.timeoutId);
-    this.controller.notifySuiteChildDone(this, error);
+    if (error) {
+      throw error;
+    }
   }
 }

From 149f747f411827b5f08c264277b328f44b516b85 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 13:02:15 -0700
Subject: [PATCH 05/21] WIP commit.

---
 src/controller.ts   |   9 ++--
 src/patch-mocha.ts  |   3 +-
 src/runner-proxy.ts | 120 ++++++++++++++++++++++++++++++++++++++------
 src/suite-child.ts  |   3 +-
 4 files changed, 111 insertions(+), 24 deletions(-)

diff --git a/src/controller.ts b/src/controller.ts
index 1b12d98..8982001 100644
--- a/src/controller.ts
+++ b/src/controller.ts
@@ -30,7 +30,7 @@ export class Controller {
   containerId = DEFAULT_CONTAINER_ID;
   loadTimeout = 60_000;
   children = new Map<string, SuiteChild>();
-  runnerProxy: RunnerProxy = new RunnerProxy();
+  runnerProxy = new RunnerProxy();
 
   private _container?: HTMLElement;
   private connectedCallback?: ConnectedCallback;
@@ -88,7 +88,6 @@ export class Controller {
    *   `suiteChild('/test/juggling.html?object=chainsaws')`
    */
   suiteChild(labelOrURL: string, url?: string) {
-    this.log(`defined suiteChild ${labelOrURL}`);
     const suiteChild = new SuiteChild(this, labelOrURL, url);
     this.children.set(suiteChild.url, suiteChild);
   }
@@ -98,7 +97,10 @@ export class Controller {
    * connected.
    */
   runChildren(connectedCallback: ConnectedCallback) {
-    this.log(`runChildren()`);
+    if (this.children.size === 0) {
+      connectedCallback();
+      return;
+    }
     this.connectedCallback = connectedCallback;
     for (const child of this.children.values()) {
       child.run(this.container, this.loadTimeout);
@@ -106,7 +108,6 @@ export class Controller {
   }
 
   notifySuiteChildConnected(_child: SuiteChild) {
-    this.log(`notifySuiteChildConnected ${_child.label}`);
     for (const child of this.children.values()) {
       if (!child.connected) {
         return;
diff --git a/src/patch-mocha.ts b/src/patch-mocha.ts
index 09775da..3330fc4 100644
--- a/src/patch-mocha.ts
+++ b/src/patch-mocha.ts
@@ -46,9 +46,8 @@ export const patchMocha = (mocha: Mocha) => {
      */
     function PseudoReporterConstructor(
         runner: Mocha.Runner, options: Mocha.MochaOptions) {
-      window.MochaSuiteChild.log(`I'm in the PRC`);
       runnerProxy.listen(runner, url);
-      
+
       // If we are running in an iframe created by a controller in the parent
       // window, then suiteChildOfMine will be the SuiteChild class that is
       // managing the iframe.
diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index b5b4f46..56a0104 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -12,9 +12,10 @@
  * http://polymer.github.io/PATENTS.txt
  */
 
-import {Runner} from 'mocha';
+import {Runner, Suite} from 'mocha';
 
 import {createStatsCollector} from './stats-collector';
+import {SuiteChild} from './suite-child';
 import {inherit} from './util';
 
 export const MochaRunnerEvents = {
@@ -80,16 +81,29 @@ export const MochaRunnerEvents = {
 }
 
 interface ProxyEvent {
-  name: string, runner: Runner, url: string, extra: unknown[],
+  name: string;
+  runner: Runner;
+  url: string;
+  suiteChild?: SuiteChild;
+  extra: unknown[];
+}
+
+interface EmitEvent {
+  name: string;
+  extra: unknown[];
 }
 
 export class RunnerProxy implements Mocha.Runner {
-  eventBuffer: ProxyEvent[] = [];
+  total = 0
+  stats!: Mocha.Stats;
+  emitQueue: EmitEvent[] = [];
+  processingQueue: ProxyEvent[] = [];
   currentRunner?: Runner;
   private localRunner?: Runner;
   private runBeginEmitted: boolean = false;
   private runEndCount = 0;
   private runnerCount = 0;
+  private rootSuite: Suite;
 
   constructor() {
     // Important: If you don't call this function that attaches the stats
@@ -97,27 +111,59 @@ export class RunnerProxy implements Mocha.Runner {
     // attempts to increment stats on the events like EVENT_TEST_PASS etc and
     // then you will tear out your hair looking for why it isn't working.
     createStatsCollector(this as unknown as Runner);
+    this.rootSuite = new Suite('');
+    this.rootSuite.root = true;
   }
 
   /**
    * Listens for all relevant events emitted by the runner.
    */
-  listen(runner: Mocha.Runner, url: string) {
+  listen(runner: Mocha.Runner, url: string, suiteChild?: SuiteChild) {
     if (runner instanceof Mocha.Runner) {
       this.localRunner = runner;
     }
+    ++this.runnerCount;
     this.total = this.total + runner.total;
     for (const name of Object.values(MochaRunnerEvents)) {
       runner.on(
-          name, (...extra) => this.proxyEvent({name, url, runner, extra}));
+          name,
+          (...extra) =>
+              this.processEvent({name, url, runner, suiteChild, extra}));
     }
   }
 
-  private proxyEvent(event: ProxyEvent) {
+  private flushEmitQueue() {
+    const events = this.emitQueue;
+    this.emitQueue = [];
+    for (const event of events) {
+      if (window.location.href.match(/top-suite/)) {
+        console.log('EMITTING', event.name, ...event.extra);
+      }
+      this.emit(event.name, ...event.extra);
+    }
+  }
+
+  private flushProcessingQueue() {
+    const events = this.processingQueue;
+    this.processingQueue = [];
+    for (const event of events) {
+      this.processEvent(event);
+    }
+  }
+
+  private processEvent(event: ProxyEvent) {
     // If we are currently processing events for a different runner, we will
-    // just put this event into the buffer.
+    // just put this event into the process queue and handle it later.
     if (this.currentRunner && this.currentRunner !== event.runner) {
-      this.eventBuffer.push(event);
+      this.processingQueue.push(event);
+      return;
+    }
+
+    // If we haven't put any events into the emit queue yet, it is because we
+    // haven't started processing events for the local runner yet.  We need to
+    // process those first so they report first.
+    if (this.emitQueue.length === 0 && this.localRunner !== event.runner) {
+      this.processingQueue.push(event);
       return;
     }
 
@@ -125,35 +171,77 @@ export class RunnerProxy implements Mocha.Runner {
       this.currentRunner = event.runner;
       if (!this.runBeginEmitted) {
         this.runBeginEmitted = true;
-        this.emit(MochaRunnerEvents.EVENT_RUN_BEGIN);
+        this.emitQueue.push(event);
+        this.emitQueue.push({
+          name: MochaRunnerEvents.EVENT_SUITE_BEGIN,
+          extra: [this.rootSuite]
+        })
       }
       return;
     }
 
     if (event.name === MochaRunnerEvents.EVENT_RUN_END) {
+      this.currentRunner = undefined;
       ++this.runEndCount;
 
+      if (this.processingQueue.length > 0) {
+        this.flushProcessingQueue();
+        return;
+      }
+
       // We can emit the run end event only when we have started listening to
       // the local mocha runner and have heard run end events from all runners
       // we are listening to.
       if (this.localRunner && this.runEndCount === this.runnerCount) {
-        this.emit(MochaRunnerEvents.EVENT_RUN_END);
-        return;
+        this.emitQueue.push(
+            {name: MochaRunnerEvents.EVENT_SUITE_END, extra: [this.rootSuite]});
+        this.emitQueue.push(event);
+        this.flushEmitQueue();
       }
+
+      return;
     }
 
     // Lets use the label to prepend the child's suite title if we are running
     // in a suite child context.
     if (event.name === MochaRunnerEvents.EVENT_SUITE_BEGIN) {
-      const {suiteChildOfMine} = window.MochaSuiteChild;
-      if (suiteChildOfMine) {
-        const suite = event.extra[0] as unknown as Mocha.Suite;
-        suite.title = `${suiteChildOfMine.label} ${suite.title}`;
+      const suite = event.extra[0] as unknown as Suite;
+      if (suite.root) {
+        // If the event has no suiteChild, then this is a root suite from the
+        // local runner, and we want to steal its children and put them in our
+        // merged synthetic `this.rootSuite`. have `this.rootSuite`.
+        if (!event.suiteChild) {
+          for (const childSuite of suite.suites) {
+            this.rootSuite.suites.push(childSuite);
+            childSuite.parent = this.rootSuite;
+          }
+          return;
+        }
+
+        // Otherwise, lets make this suite child's root suite a child of
+        // `this.rootSuite`, give it a title and remove it's "root" status.
+        this.rootSuite.suites.push(suite);
+        suite.title = event.suiteChild.label;
+        suite.root = false;
+        suite.parent = this.rootSuite;
+      }
+    }
+
+    // Lets use the label to prepend the child's suite title if we are running
+    // in a suite child context.
+    if (event.name === MochaRunnerEvents.EVENT_SUITE_END) {
+      const suite = event.extra[0] as unknown as Suite;
+      // If the suite is a root suite, we can discard it, since the only root
+      // suite we need to emit and end event for is `this.rootSuite` right
+      // before the run end event.  This root suite is the one from the local
+      // runner for which we've already discarded the run begin event.
+      if (suite.root) {
+        return;
       }
     }
 
     // Lets just proxy that event.
-    this.emit(event.name, ...event.extra);
+    this.emitQueue.push(event);
   }
 }
 
diff --git a/src/suite-child.ts b/src/suite-child.ts
index 10203c8..3ae7bdb 100644
--- a/src/suite-child.ts
+++ b/src/suite-child.ts
@@ -55,10 +55,9 @@ export class SuiteChild {
    * for the reporter.
    */
   notifyConnected(runnerProxy: RunnerProxy) {
-    this.controller.log(`notifyConnected: ${this.url}`);
     this.connected = true;
     this.runnerProxy = runnerProxy;
-    this.controller.runnerProxy.listen(runnerProxy, this.url);
+    this.controller.runnerProxy.listen(runnerProxy, this.url, this);
     this.controller.notifySuiteChildConnected(this);
     this.runnerProxy.on(MochaRunnerEvents.EVENT_RUN_END, () => this.done());
   }

From 6d84f9fd4d53d44a80ab450c2111bfd0021d566c Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 15:16:31 -0700
Subject: [PATCH 06/21] Make the code more friendly to older browsers by not
 using maps etc.

---
 src/controller.ts   | 19 +++++++++++++------
 src/runner-proxy.ts | 17 +++++++++++++++--
 2 files changed, 28 insertions(+), 8 deletions(-)

diff --git a/src/controller.ts b/src/controller.ts
index 8982001..cd7c3db 100644
--- a/src/controller.ts
+++ b/src/controller.ts
@@ -29,7 +29,7 @@ export type ConnectedCallback = (error?: Error) => void;
 export class Controller {
   containerId = DEFAULT_CONTAINER_ID;
   loadTimeout = 60_000;
-  children = new Map<string, SuiteChild>();
+  children: SuiteChild[] = [];
   runnerProxy = new RunnerProxy();
 
   private _container?: HTMLElement;
@@ -69,7 +69,14 @@ export class Controller {
    * context.
    */
   get suiteChildOfMine(): SuiteChild|undefined {
-    return this.parent && this.parent.children.get(document.location.href);
+    if (this.parent) {
+      for (const child of this.parent.children) {
+        if (child.url === document.location.href) {
+          return child;
+        }
+      }
+    }
+    return undefined;
   }
 
   /**
@@ -89,7 +96,7 @@ export class Controller {
    */
   suiteChild(labelOrURL: string, url?: string) {
     const suiteChild = new SuiteChild(this, labelOrURL, url);
-    this.children.set(suiteChild.url, suiteChild);
+    this.children.push(suiteChild);
   }
 
   /**
@@ -97,18 +104,18 @@ export class Controller {
    * connected.
    */
   runChildren(connectedCallback: ConnectedCallback) {
-    if (this.children.size === 0) {
+    if (this.children.length === 0) {
       connectedCallback();
       return;
     }
     this.connectedCallback = connectedCallback;
-    for (const child of this.children.values()) {
+    for (const child of this.children) {
       child.run(this.container, this.loadTimeout);
     }
   }
 
   notifySuiteChildConnected(_child: SuiteChild) {
-    for (const child of this.children.values()) {
+    for (const child of this.children) {
       if (!child.connected) {
         return;
       }
diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index 56a0104..cac76c7 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -152,6 +152,11 @@ export class RunnerProxy implements Mocha.Runner {
   }
 
   private processEvent(event: ProxyEvent) {
+    // TODO(usergenic): We might be able to make an optimization to this method
+    // whereby we can flush the emitQueue after the final runner's root
+    // suite start event has come in.  We would need to explicitly track which
+    // runners have emitted root suite begin events of course.
+
     // If we are currently processing events for a different runner, we will
     // just put this event into the process queue and handle it later.
     if (this.currentRunner && this.currentRunner !== event.runner) {
@@ -171,11 +176,19 @@ export class RunnerProxy implements Mocha.Runner {
       this.currentRunner = event.runner;
       if (!this.runBeginEmitted) {
         this.runBeginEmitted = true;
-        this.emitQueue.push(event);
+
+        // Emit the run begin event immediately to signal to the reporter that
+        // it's on.  This should help avoid any timeouts related to waiting for
+        // first event.  Everything else must move to the emit queue, however,
+        // because the root suite *has* to have a reference to all sub-suites
+        // and those can only reliably known once all runners have reported all
+        // of their root suite begin events.
+        this.emit(event.name);
+
         this.emitQueue.push({
           name: MochaRunnerEvents.EVENT_SUITE_BEGIN,
           extra: [this.rootSuite]
-        })
+        });
       }
       return;
     }

From 77993baab9ad4271685c38751402327587460626 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 15:37:54 -0700
Subject: [PATCH 07/21] Added test output verification to tests.

---
 karma.conf.js               | 28 ++++++++---------
 package.json                |  3 +-
 test/verify-test-results.js | 62 +++++++++++++++++++++++++++++++++++++
 3 files changed, 78 insertions(+), 15 deletions(-)
 create mode 100644 test/verify-test-results.js

diff --git a/karma.conf.js b/karma.conf.js
index fc15a81..ca3b7d8 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -1,7 +1,7 @@
 // Karma configuration
 // Generated on Tue Sep 24 2019 11:48:17 GMT-0700 (PDT)
 
-module.exports = function (config) {
+module.exports = function(config) {
   config.set({
 
     // base path that will be used to resolve all patterns (eg. files, exclude)
@@ -12,18 +12,15 @@ module.exports = function (config) {
     frameworks: ['mocha'],
 
     // list of files / patterns to load in the browser
-    files: [
-      './mocha-suite-child.js',
-      './test/test-suite.js'
-    ],
+    files: ['./mocha-suite-child.js', './test/test-suite.js'],
 
     // list of files / patterns to exclude
     exclude: [],
 
     // preprocess matching files before serving them to the browser
-    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
-    preprocessors: {
-    },
+    // available preprocessors:
+    // https://npmjs.org/browse/keyword/karma-preprocessor
+    preprocessors: {},
 
     // test results reporter to use
     // possible values: 'dots', 'progress'
@@ -34,17 +31,20 @@ module.exports = function (config) {
     port: 9876,
 
     // enable / disable colors in the output (reporters and logs)
-    colors: true,
+    colors: false,
 
     // level of logging
-    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR ||
+    // config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
     logLevel: config.LOG_INFO,
 
-    // enable / disable watching file and executing tests whenever any file changes
+    // enable / disable watching file and executing tests whenever any file
+    // changes
     autoWatch: true,
 
     // start these browsers
-    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+    // available browser launchers:
+    // https://npmjs.org/browse/keyword/karma-launcher
     browsers: ['Chrome'],
 
     // Continuous Integration mode
@@ -54,5 +54,5 @@ module.exports = function (config) {
     // Concurrency level
     // how many browser should be started simultaneous
     concurrency: Infinity
-  })
-}
+  });
+};
diff --git a/package.json b/package.json
index 8b087a7..f41a76e 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   ],
   "scripts": {
     "build": "tsc && rollup -c",
-    "test": "karma-proxy run --single-run --proxyHostname 127.0.0.1 --proxyPort 9000"
+    "test": "karma-proxy run --single-run --proxyHostname 127.0.0.1 --proxyPort 9000 | node test/verify-test-results.js"
   },
   "keywords": [],
   "author": "The Polymer Project authors",
@@ -19,6 +19,7 @@
     "@types/mocha": "^5.2.7",
     "chai": "^4.2.0",
     "clang-format": "^1.2.4",
+    "get-stream": "^5.1.0",
     "karma": "^4.3.0",
     "karma-chrome-launcher": "^3.1.0",
     "karma-mocha": "^1.3.0",
diff --git a/test/verify-test-results.js b/test/verify-test-results.js
new file mode 100644
index 0000000..fae3cb0
--- /dev/null
+++ b/test/verify-test-results.js
@@ -0,0 +1,62 @@
+const getStream = require('get-stream');
+const chai = require('chai');
+
+const expectedTestResults = `
+  The Top-Suite
+    oh hai
+      ✓ local test
+    Child Suite 1 with query "a"
+      suite child 1
+        ✓ test 1 in suite child 1
+        ✓ test 2 in suite child 1
+    Child Suite 1 with query "b"
+      suite child 1
+        ✓ test 1 in suite child 1
+        ✓ test 2 in suite child 1
+    Child Suite 2
+      suite child 2
+        ✓ test 1 in suite child 2
+        ✓ test 2 in suite child 2
+`;
+
+const expectedTestResultsRegExp = new RegExp(expectedTestResults, 'um');
+
+getStream(process.stdin).then((actualTestResults) => {
+  console.log('Test Results:\n', actualTestResults);
+
+  try {
+    chai.expect(actualTestResults)
+        .to.include(
+            `  The Top-Suite\n    oh hai\n      ✓ local test`,
+            `Should include top suite tests first.`);
+    chai.expect(actualTestResults)
+        .to.include(
+            `    Child Suite 1 with query "a"\n` +
+            `      suite child 1\n` +
+            `        ✓ test 1 in suite child 1\n` +
+            `        ✓ test 2 in suite child 1\n`);
+    chai.expect(actualTestResults)
+        .to.include(
+            `    Child Suite 1 with query "b"\n` +
+            `      suite child 1\n` +
+            `        ✓ test 1 in suite child 1\n` +
+            `        ✓ test 2 in suite child 1\n`);
+    chai.expect(actualTestResults)
+        .to.include(
+            `    Child Suite 2\n` +
+            `      suite child 2\n` +
+            `        ✓ test 1 in suite child 2\n` +
+            `        ✓ test 2 in suite child 2\n`);
+    chai.expect(actualTestResults)
+        .to.include(
+            'Executed 7 of 7 SUCCESS', 'Should include correct "of 7" totals');
+    chai.expect(actualTestResults)
+        .to.include('TOTAL: 7 SUCCESS', 'Should report total passing tests');
+  } catch (e) {
+    console.log(e);
+    process.exit(1);
+  }
+
+  console.log('Matched expected test results!');
+  process.exit(0);
+});

From 4f77417d6aacf0610c67f9976d739f37bd156360 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 15:46:09 -0700
Subject: [PATCH 08/21] Removed the special log method on controller.

---
 src/controller.ts   | 8 --------
 src/runner-proxy.ts | 3 ---
 2 files changed, 11 deletions(-)

diff --git a/src/controller.ts b/src/controller.ts
index cd7c3db..2be5a96 100644
--- a/src/controller.ts
+++ b/src/controller.ts
@@ -79,14 +79,6 @@ export class Controller {
     return undefined;
   }
 
-  /**
-   * Defer to console.log for now.  Maybe do something more configurable and
-   * interesting later.
-   */
-  log(...msg: unknown[]) {
-    console.log(window.location.href, ...msg);
-  }
-
   /**
    * Registers a child of the current mocha suite.  Use an optional label to
    * describe the suite:
diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index cac76c7..f4c7c2a 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -136,9 +136,6 @@ export class RunnerProxy implements Mocha.Runner {
     const events = this.emitQueue;
     this.emitQueue = [];
     for (const event of events) {
-      if (window.location.href.match(/top-suite/)) {
-        console.log('EMITTING', event.name, ...event.extra);
-      }
       this.emit(event.name, ...event.extra);
     }
   }

From f8d806f230a9d79dcd15b6d5a907474756f35623 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 15:47:54 -0700
Subject: [PATCH 09/21] WIP commit verify test results behavior.

---
 test/verify-test-results.js | 34 ++++++++++++++--------------------
 1 file changed, 14 insertions(+), 20 deletions(-)

diff --git a/test/verify-test-results.js b/test/verify-test-results.js
index fae3cb0..43c61c6 100644
--- a/test/verify-test-results.js
+++ b/test/verify-test-results.js
@@ -1,26 +1,20 @@
+/**
+ * @license
+ * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at
+ * http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at
+ * http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at
+ * http://polymer.github.io/PATENTS.txt
+ */
+
 const getStream = require('get-stream');
 const chai = require('chai');
 
-const expectedTestResults = `
-  The Top-Suite
-    oh hai
-      ✓ local test
-    Child Suite 1 with query "a"
-      suite child 1
-        ✓ test 1 in suite child 1
-        ✓ test 2 in suite child 1
-    Child Suite 1 with query "b"
-      suite child 1
-        ✓ test 1 in suite child 1
-        ✓ test 2 in suite child 1
-    Child Suite 2
-      suite child 2
-        ✓ test 1 in suite child 2
-        ✓ test 2 in suite child 2
-`;
-
-const expectedTestResultsRegExp = new RegExp(expectedTestResults, 'um');
-
 getStream(process.stdin).then((actualTestResults) => {
   console.log('Test Results:\n', actualTestResults);
 

From d35175fb0519be769801239a35713eff2d2f331c Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 15:48:59 -0700
Subject: [PATCH 10/21] Minor test fix

---
 test/verify-test-results.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/test/verify-test-results.js b/test/verify-test-results.js
index 43c61c6..cd7e195 100644
--- a/test/verify-test-results.js
+++ b/test/verify-test-results.js
@@ -20,9 +20,7 @@ getStream(process.stdin).then((actualTestResults) => {
 
   try {
     chai.expect(actualTestResults)
-        .to.include(
-            `  The Top-Suite\n    oh hai\n      ✓ local test`,
-            `Should include top suite tests first.`);
+        .to.include(`  The Top-Suite\n    oh hai\n      ✓ local test`);
     chai.expect(actualTestResults)
         .to.include(
             `    Child Suite 1 with query "a"\n` +

From 2b85220b51521e0d631fa19da079eed38dd6a25d Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 16:20:21 -0700
Subject: [PATCH 11/21] Remove commented-out imports.

---
 src/controller.ts | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/controller.ts b/src/controller.ts
index 2be5a96..087d131 100644
--- a/src/controller.ts
+++ b/src/controller.ts
@@ -12,8 +12,6 @@
  * http://polymer.github.io/PATENTS.txt
  */
 
-// import Mocha from 'mocha';
-// import {RunnerProxy} from './runner-proxy';
 import {RunnerProxy} from './runner-proxy';
 import {SuiteChild} from './suite-child';
 

From 493040c66911303042ddfa98c153e557d0417c1f Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 16:21:21 -0700
Subject: [PATCH 12/21] Fixed tab in readme.

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 1b4775d..f6352df 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ An example `.html` file using `mocha-suite-child` package to include 3 child sui
   // the same test suite files can be reused as children, with different
   // configurations. These must be defined at the top-level, i.e.
   // they can't be nested within Mocha's own `suite()` declarations.
-	suiteChild('Juggling apples', './juggle.html?obj=apples');
+  suiteChild('Juggling apples', './juggle.html?obj=apples');
   suiteChild('Juggling chainsaws', './juggle.html?obj=chainsaws');
   suiteChild('Bicycling tests', './bicycling.html');
   

From 148e3019d039ed04342d9addd1ff1889b93b55fc Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 16:21:53 -0700
Subject: [PATCH 13/21] removed of mine from readme.

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index f6352df..891f1cf 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# mocha-suite-child (of mine)
+# mocha-suite-child
 
 Intended for use when running mocha in web-browsers, runs mocha test suites defined in HTML documents and include the results as if they are part of the main context.
 

From 7773a6e10eb366f1f712279c738c8f4226283e76 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Fri, 11 Oct 2019 16:35:52 -0700
Subject: [PATCH 14/21] README

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 891f1cf..a449f82 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ An example `.html` file using `mocha-suite-child` package to include 3 child sui
 
 ```html
 <script src="./node_modules/mocha/mocha.js"></script>
-<!-- Load mocha-suite-child right after you mocha for best results. -->
+<!-- Load mocha-suite-child right after mocha for best results. -->
 <script src="./node_modules/mocha-suite-child/mocha-suite-child.js"></script>
 <script src="./node_modules/chai/chai.js"></script>
 <script>

From cbd9493c2489dbaf385a9051897df578011c1d53 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Tue, 15 Oct 2019 13:01:27 -0700
Subject: [PATCH 15/21] Change the style of container.

---
 src/controller.ts | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/controller.ts b/src/controller.ts
index 087d131..421183d 100644
--- a/src/controller.ts
+++ b/src/controller.ts
@@ -36,8 +36,8 @@ export class Controller {
   /**
    * This is a lazy-loaded property which will either find or create a container
    * element to append the iframes for children.  If it creates the element, it
-   * will set its style to not be displayed.  If an existing container element
-   * is found, it will be up to the developer to manage style/display.
+   * will manage the visibility and positioning of the element.  If an existing
+   * container element is found, it will be up to the developer to manage style.
    */
   get container(): HTMLElement {
     if (!this._container) {
@@ -45,7 +45,10 @@ export class Controller {
       if (!container) {
         container = document.createElement('div');
         container.id = this.containerId;
-        container.style.display = 'none';
+        container.style.position = 'absolute';
+        container.style.top = '-9999px';
+        container.style.left = '-9999px';
+        container.style.clip = 'rect(0px, 0px, 0px, 0px)';
         document.body.appendChild(container);
       }
       this._container = container;

From 6d75ced5582f76f7ba5d51a853d5442ffeae537d Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Tue, 15 Oct 2019 16:54:46 -0700
Subject: [PATCH 16/21] Don't use Object.values() if you're compiling for IE11
 which doesn't support it.

---
 src/runner-proxy.ts | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index f4c7c2a..9efc764 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -18,7 +18,7 @@ import {createStatsCollector} from './stats-collector';
 import {SuiteChild} from './suite-child';
 import {inherit} from './util';
 
-export const MochaRunnerEvents = {
+export const MochaRunnerEvents: {[key: string]: string} = {
   /**
    * Emitted when {@link Hook} execution begins
    */
@@ -124,11 +124,14 @@ export class RunnerProxy implements Mocha.Runner {
     }
     ++this.runnerCount;
     this.total = this.total + runner.total;
-    for (const name of Object.values(MochaRunnerEvents)) {
-      runner.on(
-          name,
-          (...extra) =>
-              this.processEvent({name, url, runner, suiteChild, extra}));
+    for (const key in MochaRunnerEvents) {
+      if (MochaRunnerEvents.hasOwnProperty(key)) {
+        const name = MochaRunnerEvents[key] as string;
+        runner.on(
+            name,
+            (...extra) =>
+                this.processEvent({name, url, runner, suiteChild, extra}));
+      }
     }
   }
 

From 9a87cd2444f4aa4065c392d5d068b5893b48abc8 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Wed, 16 Oct 2019 16:15:14 -0700
Subject: [PATCH 17/21] Ditch MochaRunnerEvents in favor of
 mocha.Runner.constants directly.

---
 src/declarations.ts |  7 +++-
 src/runner-proxy.ts | 94 +++++++++------------------------------------
 src/suite-child.ts  |  5 ++-
 3 files changed, 28 insertions(+), 78 deletions(-)

diff --git a/src/declarations.ts b/src/declarations.ts
index 75075cc..e59a5f5 100644
--- a/src/declarations.ts
+++ b/src/declarations.ts
@@ -12,7 +12,6 @@
  * http://polymer.github.io/PATENTS.txt
  */
 
-import Mocha from 'mocha';
 import {Controller} from './controller';
 
 declare global {
@@ -23,3 +22,9 @@ declare global {
     suiteChild: typeof Controller.prototype.suiteChild;
   }
 }
+
+declare module 'mocha' {
+  namespace Runner {
+    let constants: {[key: string]: string};
+  }
+}
diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index 9efc764..13755c0 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -18,68 +18,6 @@ import {createStatsCollector} from './stats-collector';
 import {SuiteChild} from './suite-child';
 import {inherit} from './util';
 
-export const MochaRunnerEvents: {[key: string]: string} = {
-  /**
-   * Emitted when {@link Hook} execution begins
-   */
-  EVENT_HOOK_BEGIN: 'hook',
-  /**
-   * Emitted when {@link Hook} execution ends
-   */
-  EVENT_HOOK_END: 'hook end',
-  /**
-   * Emitted when Root {@link Suite} execution begins (all files have been
-   * parsed and hooks/tests are ready for execution)
-   */
-  EVENT_RUN_BEGIN: 'start',
-  /**
-   * Emitted when Root {@link Suite} execution has been delayed via `delay`
-   * option
-   */
-  EVENT_DELAY_BEGIN: 'waiting',
-  /**
-   * Emitted when delayed Root {@link Suite} execution is triggered by user via
-   * `global.run()`
-   */
-  EVENT_DELAY_END: 'ready',
-  /**
-   * Emitted when Root {@link Suite} execution ends
-   */
-  EVENT_RUN_END: 'end',
-  /**
-   * Emitted when {@link Suite} execution begins
-   */
-  EVENT_SUITE_BEGIN: 'suite',
-  /**
-   * Emitted when {@link Suite} execution ends
-   */
-  EVENT_SUITE_END: 'suite end',
-  /**
-   * Emitted when {@link Test} execution begins
-   */
-  EVENT_TEST_BEGIN: 'test',
-  /**
-   * Emitted when {@link Test} execution ends
-   */
-  EVENT_TEST_END: 'test end',
-  /**
-   * Emitted when {@link Test} execution fails
-   */
-  EVENT_TEST_FAIL: 'fail',
-  /**
-   * Emitted when {@link Test} execution succeeds
-   */
-  EVENT_TEST_PASS: 'pass',
-  /**
-   * Emitted when {@link Test} becomes pending
-   */
-  EVENT_TEST_PENDING: 'pending',
-  /**
-   * Emitted when {@link Test} execution has failed, but will retry
-   */
-  EVENT_TEST_RETRY: 'retry'
-}
-
 interface ProxyEvent {
   name: string;
   runner: Runner;
@@ -93,7 +31,7 @@ interface EmitEvent {
   extra: unknown[];
 }
 
-export class RunnerProxy implements Mocha.Runner {
+export class RunnerProxy implements Runner {
   total = 0
   stats!: Mocha.Stats;
   emitQueue: EmitEvent[] = [];
@@ -118,15 +56,21 @@ export class RunnerProxy implements Mocha.Runner {
   /**
    * Listens for all relevant events emitted by the runner.
    */
-  listen(runner: Mocha.Runner, url: string, suiteChild?: SuiteChild) {
-    if (runner instanceof Mocha.Runner) {
+  listen(runner: Runner, url: string, suiteChild?: SuiteChild) {
+    if (runner instanceof Runner) {
       this.localRunner = runner;
     }
     ++this.runnerCount;
     this.total = this.total + runner.total;
-    for (const key in MochaRunnerEvents) {
-      if (MochaRunnerEvents.hasOwnProperty(key)) {
-        const name = MochaRunnerEvents[key] as string;
+    for (const key in Runner.constants) {
+      // `Runner.constants` may have a null prototype, built as it is from
+      // Mocha utils' `createMap` function, so `hasOwnProperty` may be
+      // unavailable on it directly.  Therefore, we use `Object.prototype`
+      // explicitly to obtain `hasOwnProperty()` to test for the property.
+      // Further, we are only interested in the `EVENT_*` named constants.
+      if (/^EVENT_/.test(key) &&
+          Object.prototype.hasOwnProperty.call(Runner.constants, key)) {
+        const name = Runner.constants[key] as string;
         runner.on(
             name,
             (...extra) =>
@@ -172,7 +116,7 @@ export class RunnerProxy implements Mocha.Runner {
       return;
     }
 
-    if (event.name === MochaRunnerEvents.EVENT_RUN_BEGIN) {
+    if (event.name === Runner.constants.EVENT_RUN_BEGIN) {
       this.currentRunner = event.runner;
       if (!this.runBeginEmitted) {
         this.runBeginEmitted = true;
@@ -186,14 +130,14 @@ export class RunnerProxy implements Mocha.Runner {
         this.emit(event.name);
 
         this.emitQueue.push({
-          name: MochaRunnerEvents.EVENT_SUITE_BEGIN,
+          name: Runner.constants.EVENT_SUITE_BEGIN,
           extra: [this.rootSuite]
         });
       }
       return;
     }
 
-    if (event.name === MochaRunnerEvents.EVENT_RUN_END) {
+    if (event.name === Runner.constants.EVENT_RUN_END) {
       this.currentRunner = undefined;
       ++this.runEndCount;
 
@@ -207,7 +151,7 @@ export class RunnerProxy implements Mocha.Runner {
       // we are listening to.
       if (this.localRunner && this.runEndCount === this.runnerCount) {
         this.emitQueue.push(
-            {name: MochaRunnerEvents.EVENT_SUITE_END, extra: [this.rootSuite]});
+            {name: Runner.constants.EVENT_SUITE_END, extra: [this.rootSuite]});
         this.emitQueue.push(event);
         this.flushEmitQueue();
       }
@@ -217,7 +161,7 @@ export class RunnerProxy implements Mocha.Runner {
 
     // Lets use the label to prepend the child's suite title if we are running
     // in a suite child context.
-    if (event.name === MochaRunnerEvents.EVENT_SUITE_BEGIN) {
+    if (event.name === Runner.constants.EVENT_SUITE_BEGIN) {
       const suite = event.extra[0] as unknown as Suite;
       if (suite.root) {
         // If the event has no suiteChild, then this is a root suite from the
@@ -242,7 +186,7 @@ export class RunnerProxy implements Mocha.Runner {
 
     // Lets use the label to prepend the child's suite title if we are running
     // in a suite child context.
-    if (event.name === MochaRunnerEvents.EVENT_SUITE_END) {
+    if (event.name === Runner.constants.EVENT_SUITE_END) {
       const suite = event.extra[0] as unknown as Suite;
       // If the suite is a root suite, we can discard it, since the only root
       // suite we need to emit and end event for is `this.rootSuite` right
@@ -261,4 +205,4 @@ export class RunnerProxy implements Mocha.Runner {
 // `RunnerEventProxy` instances inherit methods and properties of
 // `Mocha.Runner` for the `EventEmitter` functionality.
 inherit(RunnerProxy.prototype, Object.getPrototypeOf(Runner.prototype));
-export interface RunnerProxy extends Mocha.Runner {}
+export interface RunnerProxy extends Runner {}
diff --git a/src/suite-child.ts b/src/suite-child.ts
index 3ae7bdb..2c09308 100644
--- a/src/suite-child.ts
+++ b/src/suite-child.ts
@@ -12,8 +12,9 @@
  * http://polymer.github.io/PATENTS.txt
  */
 
+import {Runner} from 'mocha';
 import {Controller} from './controller';
-import {MochaRunnerEvents, RunnerProxy} from './runner-proxy';
+import {RunnerProxy} from './runner-proxy';
 
 /**
  * Defines and manages the execution of an external HTML document containing a
@@ -59,7 +60,7 @@ export class SuiteChild {
     this.runnerProxy = runnerProxy;
     this.controller.runnerProxy.listen(runnerProxy, this.url, this);
     this.controller.notifySuiteChildConnected(this);
-    this.runnerProxy.on(MochaRunnerEvents.EVENT_RUN_END, () => this.done());
+    this.runnerProxy.on(Runner.constants.EVENT_RUN_END, () => this.done());
   }
 
   /**

From 1f3f3ba72f0424d01c76ad585e959e595adca770 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Tue, 22 Oct 2019 13:15:20 -0700
Subject: [PATCH 18/21] Removed stats-collector in favor of built-in stats and
 accumulator event handlers.

---
 src/runner-proxy.ts    | 25 ++++++++----
 src/stats-collector.ts | 90 ------------------------------------------
 2 files changed, 18 insertions(+), 97 deletions(-)
 delete mode 100644 src/stats-collector.ts

diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index 13755c0..418e718 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -14,7 +14,6 @@
 
 import {Runner, Suite} from 'mocha';
 
-import {createStatsCollector} from './stats-collector';
 import {SuiteChild} from './suite-child';
 import {inherit} from './util';
 
@@ -33,7 +32,8 @@ interface EmitEvent {
 
 export class RunnerProxy implements Runner {
   total = 0
-  stats!: Mocha.Stats;
+  stats:
+      Mocha.Stats = {suites: 0, tests: 0, passes: 0, pending: 0, failures: 0};
   emitQueue: EmitEvent[] = [];
   processingQueue: ProxyEvent[] = [];
   currentRunner?: Runner;
@@ -44,15 +44,26 @@ export class RunnerProxy implements Runner {
   private rootSuite: Suite;
 
   constructor() {
-    // Important: If you don't call this function that attaches the stats
-    // objects to the runner instance, Mocha will just silently fail as it
-    // attempts to increment stats on the events like EVENT_TEST_PASS etc and
-    // then you will tear out your hair looking for why it isn't working.
-    createStatsCollector(this as unknown as Runner);
+    this.on(
+        Runner.constants.EVENT_RUN_BEGIN, () => this.stats.start = new Date());
+    this.on(
+        Runner.constants.EVENT_SUITE_BEGIN,
+        (suite) => suite.root || ++this.stats.suites);
+    this.on(Runner.constants.EVENT_TEST_PASS, () => ++this.stats.passes);
+    this.on(Runner.constants.EVENT_TEST_FAIL, () => ++this.stats.failures);
+    this.on(Runner.constants.EVENT_TEST_PENDING, () => ++this.stats.pending);
+    this.on(Runner.constants.EVENT_TEST_END, () => ++this.stats.tests);
+    this.on(Runner.constants.EVENT_RUN_END, () => {
+      this.stats.end = new Date();
+      this.stats.duration = +this.stats.end - +this.stats.start!;
+    });
     this.rootSuite = new Suite('');
     this.rootSuite.root = true;
   }
 
+  initStats() {
+    return
+  }
   /**
    * Listens for all relevant events emitted by the runner.
    */
diff --git a/src/stats-collector.ts b/src/stats-collector.ts
deleted file mode 100644
index cb8f925..0000000
--- a/src/stats-collector.ts
+++ /dev/null
@@ -1,90 +0,0 @@
-'use strict';
-/**
-(The MIT License)
-Copyright (c) 2011-2018 JS Foundation and contributors, https://js.foundation
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-'Software'), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-/**
- * The following was extracted from
- * https://github.com/mochajs/mocha/blob/master/lib/stats-collector.js
- */
-
-/**
- * Test statistics collector.
- *
- * @typedef {Object} StatsCollector
- * @property {number} suites - integer count of suites run.
- * @property {number} tests - integer count of tests run.
- * @property {number} passes - integer count of passing tests.
- * @property {number} pending - integer count of pending tests.
- * @property {number} failures - integer count of failed tests.
- * @property {Date} start - time when testing began.
- * @property {Date} end - time when testing concluded.
- * @property {number} duration - number of msecs that testing took.
- */
-
-/**
- * Provides stats such as test duration,
- * number of tests passed / failed etc.
- *
- * @public
- * @memberof Mocha
- * @param {Runner} runner
- */
-export const createStatsCollector = (runner: Mocha.Runner) => {
-  var stats:
-      Mocha.Stats = {suites: 0, tests: 0, passes: 0, pending: 0, failures: 0};
-
-  if (!runner) {
-    throw new TypeError('Missing runner argument');
-  }
-
-  runner.stats = stats;
-
-  runner.once('start', function() {
-    stats.start = new Date();
-  });
-
-  runner.on('suite', function(suite) {
-    suite.root || stats.suites++;
-  });
-
-  runner.on('pass', function() {
-    stats.passes++;
-  });
-
-  runner.on('fail', function() {
-    stats.failures++;
-  });
-
-  runner.on('pending', function() {
-    stats.pending++;
-  });
-
-  runner.on('test end', function() {
-    stats.tests++;
-  });
-
-  runner.once('end', function() {
-    stats.end = new Date();
-    // To coerce to numbers and make TS compiler happy, we use unary `+` prefix
-    // for date arithmetic.
-    stats.duration = +stats.end - +stats.start!;
-  });
-}

From 3d91f6c9e723323d37746d413498696f708939a5 Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Tue, 22 Oct 2019 14:50:43 -0700
Subject: [PATCH 19/21] Remove unused runner proxy method initResults

---
 karma.conf.js       | 10 ++++++++--
 package.json        |  1 -
 src/runner-proxy.ts |  3 ---
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/karma.conf.js b/karma.conf.js
index ca3b7d8..1ea8ac4 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -1,5 +1,7 @@
 // Karma configuration
 // Generated on Tue Sep 24 2019 11:48:17 GMT-0700 (PDT)
+const karmaBrowsers =
+    (process.env.KARMA_BROWSERS || '').split(/ *, */).filter(Boolean);
 
 module.exports = function(config) {
   config.set({
@@ -45,7 +47,7 @@ module.exports = function(config) {
     // start these browsers
     // available browser launchers:
     // https://npmjs.org/browse/keyword/karma-launcher
-    browsers: ['Chrome'],
+    browsers: karmaBrowsers,
 
     // Continuous Integration mode
     // if true, Karma captures browsers, runs the tests and exits
@@ -54,5 +56,9 @@ module.exports = function(config) {
     // Concurrency level
     // how many browser should be started simultaneous
     concurrency: Infinity
-  });
+  })
 };
+
+console.log('---');
+console.log('KARMA_BROWSERS:', karmaBrowsers);
+console.log('---');
diff --git a/package.json b/package.json
index f41a76e..c614090 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,6 @@
     "@types/mocha": "^5.2.7",
     "chai": "^4.2.0",
     "clang-format": "^1.2.4",
-    "get-stream": "^5.1.0",
     "karma": "^4.3.0",
     "karma-chrome-launcher": "^3.1.0",
     "karma-mocha": "^1.3.0",
diff --git a/src/runner-proxy.ts b/src/runner-proxy.ts
index 418e718..eeefa4f 100644
--- a/src/runner-proxy.ts
+++ b/src/runner-proxy.ts
@@ -61,9 +61,6 @@ export class RunnerProxy implements Runner {
     this.rootSuite.root = true;
   }
 
-  initStats() {
-    return
-  }
   /**
    * Listens for all relevant events emitted by the runner.
    */

From 61c2c3802a889d8064b90da97f9c309a28697c5e Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Tue, 22 Oct 2019 16:05:14 -0700
Subject: [PATCH 20/21] Add travis.yml

---
 .travis.yml | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 .travis.yml

diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..a17df7f
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,29 @@
+language: node_js
+sudo: false
+dist: xenial
+node_js: '10'
+addons:
+  firefox: latest
+  apt:
+    sources:
+      - google-chrome
+    packages:
+      - google-chrome-stable
+cache:
+  directories:
+  - node_modules
+env:
+  global:
+matrix:
+  fast_finish: true
+  allow_failures:
+  - env: JOB=benchmark
+  include:
+  - env: JOB=test KARMA_BROWSERS="Chrome,Firefox"
+    before_script:
+      - time npm run lint
+    script: 
+      - xvfb-run time npm run test
+  - env: JOB=benchmark
+    script:
+      - ./travis-bench.sh

From 6e76458a87ae6180a8d5aa88b25be2aaf4f40a3c Mon Sep 17 00:00:00 2001
From: Brendan Baldwin <brendan@usergenic.com>
Date: Tue, 22 Oct 2019 16:17:14 -0700
Subject: [PATCH 21/21] Let verify-test-results pipe chunks to stdout. Also,
 discovered weird reporting issue with multiple browsers that seems only
 remedied when actual top-level suite present.  Investigating.

---
 package-lock.json           | 15 +++++++++++++++
 package.json                |  1 +
 test/test-suite.js          |  5 +++++
 test/verify-test-results.js | 25 +++++++++++++++++++++----
 4 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9dcd653..b97c94b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2688,6 +2688,12 @@
       "integrity": "sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=",
       "dev": true
     },
+    "is-wsl": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/is-wsl/-/is-wsl-2.1.1.tgz",
+      "integrity": "sha512-umZHcSrwlDHo2TGMXv0DZ8dIUGunZ2Iv68YZnrmCiBPkZ4aaOhtv7pXJKeki9k3qJ3RJr0cDyitcl5wEH3AYog==",
+      "dev": true
+    },
     "isarray": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
@@ -2849,6 +2855,15 @@
         "which": "^1.2.1"
       }
     },
+    "karma-firefox-launcher": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/karma-firefox-launcher/-/karma-firefox-launcher-1.2.0.tgz",
+      "integrity": "sha512-j9Zp8M8+VLq1nI/5xZGfzeaEPtGQ/vk3G+Y8vpmFWLvKLNZ2TDjD6cu2dUu7lDbu1HXNgatsAX4jgCZTkR9qhQ==",
+      "dev": true,
+      "requires": {
+        "is-wsl": "^2.1.0"
+      }
+    },
     "karma-mocha": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/karma-mocha/-/karma-mocha-1.3.0.tgz",
diff --git a/package.json b/package.json
index c614090..ea468ab 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
     "clang-format": "^1.2.4",
     "karma": "^4.3.0",
     "karma-chrome-launcher": "^3.1.0",
+    "karma-firefox-launcher": "^1.2.0",
     "karma-mocha": "^1.3.0",
     "karma-spec-reporter": "0.0.32",
     "koa": "^2.8.1",
diff --git a/test/test-suite.js b/test/test-suite.js
index 89ce5fc..3df96df 100644
--- a/test/test-suite.js
+++ b/test/test-suite.js
@@ -1 +1,6 @@
+mocha.setup('tdd');
+
 suiteChild('The Top-Suite', '/base/test/top-suite.html');
+test('oh hai thar', () => {
+  return true;
+});
diff --git a/test/verify-test-results.js b/test/verify-test-results.js
index cd7e195..3a41a57 100644
--- a/test/verify-test-results.js
+++ b/test/verify-test-results.js
@@ -12,11 +12,28 @@
  * http://polymer.github.io/PATENTS.txt
  */
 
-const getStream = require('get-stream');
 const chai = require('chai');
 
-getStream(process.stdin).then((actualTestResults) => {
-  console.log('Test Results:\n', actualTestResults);
+let input = '';
+let unterminatedContent = '';
+process.stdin.resume();
+process.stdin.setEncoding('utf8');
+process.stdin.on('data', (chunk) => {
+  input = input + chunk;
+  const terminated = chunk.match(/(?:\n|.)*\n/m);
+  if (terminated) {
+    const terminatedContent = terminated[0];
+    process.stdout.write(unterminatedContent + terminatedContent);
+    unterminatedContent = chunk.slice(terminatedContent.length);
+  }
+});
+process.stdin.on('end', () => {
+  if (unterminatedContent) {
+    process.stdout.write(unterminatedContent);
+    unterminatedContent = '';
+  }
+
+  const actualTestResults = input;
 
   try {
     chai.expect(actualTestResults)
@@ -49,6 +66,6 @@ getStream(process.stdin).then((actualTestResults) => {
     process.exit(1);
   }
 
-  console.log('Matched expected test results!');
+  process.stdout.write('Matched expected test results!');
   process.exit(0);
 });