MVP/pre-release

.clang-format

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+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

.gitignore

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+/.vscode/
+/node_modules/
+/lib/
+/mocha-suite-child.js
+/mocha-suite-child.d.ts

.npmignore

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+mocha-suite-child.js
+rollup.config.js
+tsconfig.json
+tslint.json
+test/

CHANGELOG.md

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+# 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 -->

LICENSE

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+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.

README.md

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+# 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.
+
+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 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>
+```
+

karma.conf.js

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+// 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: false,
+
+    // 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
+  });
+};

karma.proxy.js

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+/**
+ * @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);

koa-proxy.js

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+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);