.azure-pipelines-steps.yml

@@ -2,44 +2,45 @@
 # Steps for building and testing Jest. See jobs defined in .azure-pipelines.yml
 #
 
-# Clones the repo
 steps:
   - checkout: self
+    path: jest
 
-  # Ensure Node.js 10 is active
+  # Ensure Node.js 14 is active
   - task: NodeTool@0
     inputs:
-      versionSpec: '10.x'
-    displayName: 'Use Node.js 10'
+      versionSpec: '14.x'
+    displayName: 'Use Node.js 14'
 
   # Ensure Python 2.7 is active
   - task: UsePythonVersion@0
     inputs:
       versionSpec: '2.7'
     displayName: 'Use Python 2.7'
 
-  # Workaround to move source files under a "jest" folder (see .azure-pipelines.yml for details)
-  - script: |
-      cd /
-      mv $(Build.Repository.LocalPath) $(JEST_DIR)
-      mkdir $(Build.Repository.LocalPath)
-    displayName: 'Move source into jest folder'
+  - bash: echo "##vso[task.setvariable variable=folder;isOutput=true]$(yarn config get cacheFolder)"
+    name: yarnCache
 
-  # Run yarn to install dependencies and build
-  - script: yarn --frozen-lockfile
-    workingDirectory: $(JEST_DIR)
-    displayName: 'Install dependencies and build'
+  - task: Cache@2
+    inputs:
+      key: yarn | $(Agent.OS) | yarn.lock
+      path: $(yarnCache.folder)
+    displayName: Cache Yarn packages
+
+  - script: yarn install --immutable
+    displayName: 'Install dependencies'
+
+  - script: yarn build:js
+    displayName: 'Transpile TypeScript'
 
   # Run test-ci-partial
   - script: yarn run test-ci-partial
-    workingDirectory: $(JEST_DIR)
     displayName: 'Run tests'
 
   # Publish CI test results
   - task: PublishTestResults@2
     inputs:
       testResultsFiles: '**/reports/junit/*.xml'
-      searchFolder: $(JEST_DIR)
       testRunTitle: 'CI Tests $(Agent.OS)'
     displayName: 'Publish test results'
     condition: succeededOrFailed()

.azure-pipelines.yml

@@ -21,7 +21,7 @@ jobs:
 
   - job: macOS
     pool:
-      vmImage: macos-10.13
+      vmImage: macos-10.15
     steps:
       # This step can be removed once Mercurial gets installed on the macOS image. See https://github.com/Microsoft/azure-pipelines-image-generation/issues/604
       - script: HOMEBREW_NO_AUTO_UPDATE=1 brew install mercurial
@@ -32,9 +32,5 @@ variables:
   # Used by chalk. Ensures output from Jest includes ANSI escape characters that are needed to match test snapshots.
   FORCE_COLOR: 1
 
-  # By default, Azure Pipelines clones to an "s" directory, which causes tests to fail due to assumption of Jest being run from a "jest" directory.
-  # See packages/jest-message-util/src/index.js PATH_JEST_PACKAGES for more details.
-  JEST_DIR: $(Agent.BuildDirectory)/jest
-
   # Ensures the handful of tests that should be skipped during CI are
   CI: true

.circleci/config.yml

@@ -1,143 +1,74 @@
-aliases:
-  - &restore-cache
-    keys:
-      - v2-dependencies-{{ .Branch }}-{{ checksum "yarn.lock" }}
-      # Fallback in case checksum fails
-      - v2-dependencies-{{ .Branch }}-
-
-  - &save-cache
-    paths:
-      - node_modules
-      - website/node_modules
-    key: v2-dependencies-{{ .Branch }}-{{ checksum "yarn.lock" }}
+version: 2.1
 
+aliases:
   - &filter-ignore-gh-pages
     branches:
       ignore: gh-pages
+  - &install
+    pkg-manager: yarn
+    override-ci-command: yarn install --immutable && yarn build:js
+    cache-path: ~/.yarn/berry/cache
+    include-branch-in-cache-key: false
+    app-dir: ~/jest
 
-version: 2
-jobs:
-  lint-and-typecheck:
-    working_directory: ~/jest
-    docker:
-      - image: circleci/node:10
-    steps:
-      - checkout
-      - restore-cache: *restore-cache
-      - run: yarn --no-progress --frozen-lockfile
-      - save-cache: *save-cache
-      - run: echo server.max_workers=1 >> .flowconfig
-      - run: yarn lint --format junit -o reports/junit/js-lint-results.xml && yarn typecheck && yarn lint-es5-build --format junit -o reports/junit/js-es5-lint-results.xml  && yarn lint:md:ci && yarn check-copyright-headers
-      - store_test_results:
-          path: reports/junit
+orbs:
+  node: circleci/node@4.0.0
 
-  test-node-6:
-    working_directory: ~/jest
-    docker:
-      - image: circleci/node:6
-    steps:
-      - checkout
-      - restore-cache: *restore-cache
-      - run: yarn --no-progress --frozen-lockfile --ignore-engines
-      - save-cache: *save-cache
-      - run:
-          # react-native does not work with node 6
-          command: rm -rf examples/react-native && yarn test-ci-partial
-      - store_test_results:
-          path: reports/junit
-
-  test-node-8:
-    working_directory: ~/jest
-    docker:
-      - image: circleci/node:8
-    steps:
-      - checkout
-      - restore-cache: *restore-cache
-      - run: yarn --no-progress --frozen-lockfile
-      - save-cache: *save-cache
-      - run:
-          command: yarn test-ci-partial
-      - store_test_results:
-          path: reports/junit
-
-  test-node-10:
-    working_directory: ~/jest
-    docker:
-      - image: circleci/node:10
-    steps:
-      - checkout
-      - restore-cache: *restore-cache
-      - run: yarn --no-progress --frozen-lockfile
-      - save-cache: *save-cache
-      - run:
-          command: yarn test-ci
-      - store_test_results:
-          path: reports/junit
-
-  test-jest-circus:
+jobs:
+  test-node:
+    parameters:
+      node-version:
+        type: string
+      partial:
+        type: boolean
+        default: false
     working_directory: ~/jest
-    docker:
-      - image: circleci/node:10
+    executor: node/default
     steps:
       - checkout
-      - restore-cache: *restore-cache
-      - run: yarn --no-progress --frozen-lockfile
-      - save-cache: *save-cache
-      - run:
-          command: JEST_CIRCUS=1 yarn test-ci-partial
+      - node/install:
+          node-version: << parameters.node-version >>
+          install-npm: false
+      - node/install-packages: *install
+      - when:
+          condition: << parameters.partial >>
+          steps:
+            - run:
+                command: yarn test-ci-partial
+      - unless:
+          condition: << parameters.partial >>
+          steps:
+            - run:
+                command: yarn test-ci
       - store_test_results:
           path: reports/junit
 
-  test-node-11:
+  test-jest-jasmine:
     working_directory: ~/jest
-    docker:
-      - image: circleci/node:11
+    executor: node/default
     steps:
       - checkout
-      - restore-cache: *restore-cache
-      - run: yarn --no-progress --frozen-lockfile
-      - save-cache: *save-cache
+      - node/install:
+          lts: true
+          install-npm: false
+      - node/install-packages: *install
       - run:
-          command: yarn test-ci-partial
+          command: JEST_JASMINE=1 yarn test-ci-partial && JEST_JASMINE=1 yarn test-leak
       - store_test_results:
           path: reports/junit
 
-  test-browser:
-    working_directory: ~/jest
-    docker:
-      - image: circleci/node:10-browsers
-    steps:
-      - checkout
-      - restore-cache: *restore-cache
-      - run: yarn --no-progress --frozen-lockfile
-      - save-cache: *save-cache
-      - run: yarn test-ci-es5-build-in-browser
-
-  test-or-deploy-website:
-    working_directory: ~/jest
-    docker:
-      - image: circleci/node:10
-    resource_class: large
-    steps:
-      - checkout
-      - restore-cache: *restore-cache
-      - run: yarn --no-progress --frozen-lockfile
-      - save-cache: *save-cache
-      - run:
-          name: Test or Deploy Jest Website
-          command: ./.circleci/website.sh
-
 # Workflows enables us to run multiple jobs in parallel
 workflows:
-  version: 2
   build-and-deploy:
     jobs:
-      - lint-and-typecheck
-      - test-node-6
-      - test-node-8
-      - test-node-10
-      - test-jest-circus
-      - test-node-11 # current
-      - test-browser
-      - test-or-deploy-website:
-          filters: *filter-ignore-gh-pages
+      - test-node:
+          matrix:
+            parameters:
+              node-version: ['14']
+      - test-node:
+          name: test-node-partial-<< matrix.node-version >>
+          partial: true
+          matrix:
+            parameters:
+              node-version: ['10', '12', '15', '16']
+      - test-jest-jasmine

.editorconfig

@@ -1,11 +1,19 @@
+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# editorconfig.org
+#
+# Some of these options are also respected by Prettier
+
 root = true
 
 [*]
 indent_style = space
 indent_size = 2
+
+end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
-[{*.md,*.snap}]
+[*.{md,snap}]
 trim_trailing_whitespace = false

.eslintignore

@@ -3,10 +3,11 @@
 bin/
 flow-typed/**
 packages/*/build/**
-packages/*/build-es5/**
+packages/jest-diff/src/cleanupSemantic.ts
+website/.docusaurus
 website/blog
 website/build
 website/node_modules
 website/i18n/*.js
-website/translated_docs
+website/static
 !.eslintrc.js

.eslintplugin/index.js

@@ -0,0 +1,14 @@
+/**
+ * Copyright (c) 2016-present, Facebook, Inc. 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.
+ */
+
+exports.rules = {
+  'ban-types-eventually': require('@typescript-eslint/eslint-plugin').rules[
+    'ban-types'
+  ],
+  'prefer-rest-params-eventually': require('eslint/lib/rules/prefer-rest-params'),
+  'prefer-spread-eventually': require('eslint/lib/rules/prefer-spread'),
+};