chore(breaking): remove regenerator-runtime injection (#7595)

* feat: use @babel/plugin-transform-runtime instead of regenerator-runtime

* fix async example

* add changelog

* add babel/core and babel-jest to all examples

* fix native async test

* chore: dedupe lockfile

* remove babel from native transform test

* add test for async regenerator

CHANGELOG.md

@@ -123,6 +123,7 @@
 - `[*]` [**BREAKING**] Require Node.js 6+ for all packages ([#7258](https://github.com/facebook/jest/pull/7258))
 - `[jest-util]` [**BREAKING**] Remove long-deprecated globals for fake timers ([#7285](https://github.com/facebook/jest/pull/7285))
 - `[*]` [**BREAKING**] Upgrade to Micromatch 3 ([#6650](https://github.com/facebook/jest/pull/6650))
+- `[*]` [**BREAKING**] Remove regenerator-runtime injection ([#7595](https://github.com/facebook/jest/pull/7595))
 - `[docs]` Fix message property in custom matcher example to return a function instead of a constant. ([#7426](https://github.com/facebook/jest/pull/7426))
 - `[jest-circus]` Standardize file naming in `jest-circus` ([#7301](https://github.com/facebook/jest/pull/7301))
 - `[docs]` Add synchronous test.each setup ([#7150](https://github.com/facebook/jest/pull/7150))

e2e/__tests__/asyncRegenerator.test.js

@@ -0,0 +1,25 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ */
+
+import path from 'path';
+import {run} from '../Utils';
+import {json as runWithJson} from '../runJest';
+
+const dir = path.resolve(__dirname, '../async-regenerator');
+
+beforeEach(() => {
+  run('yarn', dir);
+});
+
+test('successfully transpiles async', () => {
+  // --no-cache because babel can cache stuff and result in false green
+  const {json} = runWithJson(dir, ['--no-cache']);
+  expect(json.success).toBe(true);
+  expect(json.numTotalTests).toBe(1);
+});

e2e/async-regenerator/__tests__/test.js

@@ -0,0 +1,6 @@
+// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+
+test('dummy test', async () => {
+  const value = await Promise.resolve(1);
+  expect(value).toBe(1);
+});

e2e/async-regenerator/babel.config.js

@@ -0,0 +1,9 @@
+// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+
+module.exports = {
+  plugins: [
+    '@babel/plugin-transform-regenerator',
+    '@babel/plugin-transform-runtime',
+  ],
+  sourceType: 'script',
+};

e2e/async-regenerator/package.json

@@ -0,0 +1,11 @@
+{
+  "dependencies": {
+    "@babel/core": "^7.2.2",
+    "@babel/polyfill": "^7.2.5",
+    "@babel/plugin-transform-regenerator": "^7.0.0",
+    "@babel/plugin-transform-runtime": "^7.2.0"
+  },
+  "jest": {
+    "testEnvironment": "node"
+  }
+}

e2e/async-regenerator/yarn.lock

@@ -0,0 +1,317 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
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+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0.tgz#06e2ab19bdb535385559aabb5ba59729482800f8"
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+  dependencies:
+    "@babel/highlight" "^7.0.0"
+
+"@babel/core@^7.2.2":
+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.2.2.tgz#07adba6dde27bb5ad8d8672f15fde3e08184a687"
+  integrity sha512-59vB0RWt09cAct5EIe58+NzGP4TFSD3Bz//2/ELy3ZeTeKF6VTD1AXlH8BGGbCX0PuobZBsIzO7IAI9PH67eKw==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@babel/generator" "^7.2.2"
+    "@babel/helpers" "^7.2.0"
+    "@babel/parser" "^7.2.2"
+    "@babel/template" "^7.2.2"
+    "@babel/traverse" "^7.2.2"
+    "@babel/types" "^7.2.2"
+    convert-source-map "^1.1.0"
+    debug "^4.1.0"
+    json5 "^2.1.0"
+    lodash "^4.17.10"
+    resolve "^1.3.2"
+    semver "^5.4.1"
+    source-map "^0.5.0"
+
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+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.2.2.tgz#18c816c70962640eab42fe8cae5f3947a5c65ccc"
+  integrity sha512-I4o675J/iS8k+P38dvJ3IBGqObLXyQLTxtrR4u9cSUJOURvafeEWb/pFMOTwtNrmq73mJzyF6ueTbO1BtN0Zeg==
+  dependencies:
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+    jsesc "^2.5.1"
+    lodash "^4.17.10"
+    source-map "^0.5.0"
+    trim-right "^1.0.1"
+
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+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-regenerator/-/plugin-transform-regenerator-7.0.0.tgz#5b41686b4ed40bef874d7ed6a84bdd849c13e0c1"
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+  dependencies:
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+
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+regenerator-transform@^0.13.3:
+  version "0.13.3"
+  resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.13.3.tgz#264bd9ff38a8ce24b06e0636496b2c856b57bcbb"
+  integrity sha512-5ipTrZFSq5vU2YoGoww4uaRVAK4wyYC4TSICibbfEPOruUu8FFP7ErV0BjmbIOEpn3O/k9na9UEdYR/3m7N6uA==
+  dependencies:
+    private "^0.1.6"
+
+resolve@^1.3.2, resolve@^1.8.1:
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.9.0.tgz#a14c6fdfa8f92a7df1d996cb7105fa744658ea06"
+  integrity sha512-TZNye00tI67lwYvzxCxHGjwTNlUV70io54/Ed4j6PscB8xVfuBJpRenI/o6dVk0cY0PYTY27AgCoGGxRnYuItQ==
+  dependencies:
+    path-parse "^1.0.6"
+
+safe-buffer@~5.1.1:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+  integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
+
+semver@^5.4.1, semver@^5.5.1:
+  version "5.6.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
+  integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
+
+source-map@^0.5.0:
+  version "0.5.7"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
+  integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
+
+supports-color@^5.3.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
+  integrity sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==
+  dependencies:
+    has-flag "^3.0.0"
+
+to-fast-properties@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
+  integrity sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=
+
+trim-right@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
+  integrity sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=

e2e/custom-resolver/__tests__/customResolver.test.js

@@ -10,10 +10,6 @@ test('should use the custom resolver', () => {
   require('foo');
 });
 
-test('should have regenerator injected', () => {
-  expect(global.fakeRegeneratorInjected).toEqual(true);
-});
-
 test('should work with automock', () => {
   jest.mock('foo');