Build/Test Tools: Migrate Puppeteer tests to Playwright.

As per the migration plan shared last year, this migrates all browser-based tests in WordPress core to use Playwright.
This includes end-to-end, performance, and visual regression tests.

Props swissspidy, mamaduka, kevin940726, bartkalisz, desrosj, adamsilverstein.
Fixes #59517.

git-svn-id: https://develop.svn.wordpress.org/trunk@56926 602fd350-edb4-49c9-b593-d223f7449a82

.github/workflows/coding-standards.yml

@@ -142,8 +142,6 @@ jobs:
       contents: read
     timeout-minutes: 20
     if: ${{ github.repository == 'WordPress/wordpress-develop' || github.event_name == 'pull_request' }}
-    env:
-      PUPPETEER_SKIP_DOWNLOAD: ${{ true }}
 
     steps:
       - name: Checkout repository

.github/workflows/end-to-end-tests.yml

@@ -42,11 +42,13 @@ jobs:
   # - Sets up Node.js.
   # - Logs debug information about the GitHub Action runner.
   # - Installs npm dependencies.
+  # - Install Playwright browsers.
   # - Builds WordPress to run from the `build` directory.
   # - Starts the WordPress Docker container.
   # - Logs the running Docker containers.
   # - Logs Docker debug information (about both the Docker installation within the runner and the WordPress container).
   # - Install WordPress within the Docker container.
+  # - Install Gutenberg.
   # - Run the E2E tests.
   # - Ensures version-controlled files are not modified or deleted.
   e2e-tests:
@@ -90,6 +92,9 @@ jobs:
       - name: Install npm Dependencies
         run: npm ci
 
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps
+
       - name: Build WordPress
         run: npm run build
 
@@ -115,6 +120,9 @@ jobs:
           LOCAL_SCRIPT_DEBUG: ${{ matrix.LOCAL_SCRIPT_DEBUG }}
         run: npm run env:install
 
+      - name: Install Gutenberg
+        run: npm run env:cli -- plugin install gutenberg --path=/var/www/${{ env.LOCAL_DIR }}
+
       - name: Run E2E tests
         run: npm run test:e2e
 
@@ -129,6 +137,22 @@ jobs:
       - name: Ensure version-controlled files are not modified or deleted
         run: git diff --exit-code
 
+  slack-notifications:
+    name: Slack Notifications
+    uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@trunk
+    permissions:
+      actions: read
+      contents: read
+    needs: [ e2e-tests ]
+    if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' && always() }}
+    with:
+      calling_status: ${{ contains( needs.*.result, 'cancelled' ) && 'cancelled' || contains( needs.*.result, 'failure' ) && 'failure' || 'success' }}
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
+
   failed-workflow:
     name: Failed workflow tasks
     runs-on: ubuntu-latest
@@ -141,7 +165,8 @@ jobs:
       github.event_name != 'pull_request' &&
       github.run_attempt < 2 &&
       (
-        needs.e2e-tests.result == 'cancelled' || needs.e2e-tests.result == 'failure'
+        contains( needs.*.result, 'cancelled' ) ||
+        contains( needs.*.result, 'failure' )
       )
     steps:
       - name: Dispatch workflow run

.github/workflows/performance.yml

@@ -31,10 +31,10 @@ permissions: {}
 
 env:
   # Performance testing should be performed in an environment reflecting a standard production environment.
-  WP_DEBUG: false
-  SCRIPT_DEBUG: false
-  SAVEQUERIES : false
-  WP_DEVELOPMENT_MODE: ''
+  LOCAL_WP_DEBUG: false
+  LOCAL_SCRIPT_DEBUG: false
+  LOCAL_SAVEQUERIES: false
+  LOCAL_WP_DEVELOPMENT_MODE: "''"
 
   # This workflow takes two sets of measurements — one for the current commit,
   # and another against a consistent version that is used as a baseline measurement.
@@ -56,6 +56,7 @@ jobs:
   # - Set up Node.js.
   # - Log debug information.
   # - Install npm dependencies.
+  # - Install Playwright browsers.
   # - Build WordPress.
   # - Start Docker environment.
   # - Log running Docker containers.
@@ -73,6 +74,7 @@ jobs:
   # - Run performance tests (previous/target commit).
   # - Print target performance tests results.
   # - Reset to original commit.
+  # - Install npm dependencies.
   # - Set the environment to the baseline version.
   # - Run baseline performance tests.
   # - Print baseline performance tests results.
@@ -119,6 +121,9 @@ jobs:
       - name: Install npm dependencies
         run: npm ci
 
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps
+
       - name: Build WordPress
         run: npm run build
 
@@ -182,24 +187,35 @@ jobs:
         run: npm run build
 
       - name: Run target performance tests (base/previous commit)
-        run: npm run test:performance -- --prefix=before
+        env:
+          TEST_RESULTS_PREFIX: before
+        run: npm run test:performance
 
       - name: Print target performance tests results
-        run: node ./tests/performance/results.js --prefix=before
+        env:
+          TEST_RESULTS_PREFIX: before
+        run: node ./tests/performance/results.js
 
       - name: Reset to original commit
         run: git reset --hard $GITHUB_SHA
 
+      - name: Install npm dependencies
+        run: npm ci
+
       - name: Set the environment to the baseline version
         run: |
           npm run env:cli -- core update --version=${{ env.BASE_TAG }} --force --path=/var/www/${{ env.LOCAL_DIR }}
           npm run env:cli -- core version --path=/var/www/${{ env.LOCAL_DIR }}
 
       - name: Run baseline performance tests
-        run: npm run test:performance -- --prefix=base
+        env:
+          TEST_RESULTS_PREFIX: base
+        run: npm run test:performance
 
       - name: Print baseline performance tests results
-        run: node ./tests/performance/results.js --prefix=base
+        env:
+          TEST_RESULTS_PREFIX: base
+        run: node ./tests/performance/results.js
 
       - name: Compare results with base
         run: node ./tests/performance/compare-results.js ${{ runner.temp }}/summary.md

.github/workflows/phpunit-tests-run.yml

@@ -51,7 +51,6 @@ env:
   LOCAL_DB_VERSION: ${{ inputs.db-version }}
   LOCAL_PHP_MEMCACHED: ${{ inputs.memcached }}
   PHPUNIT_CONFIG: ${{ inputs.phpunit-config }}
-  PUPPETEER_SKIP_DOWNLOAD: ${{ true }}
 
 jobs:
   # Runs the PHPUnit tests for WordPress.

.github/workflows/test-coverage.yml

@@ -29,7 +29,6 @@ on:
 permissions: {}
 
 env:
-  PUPPETEER_SKIP_DOWNLOAD: ${{ true }}
   LOCAL_PHP: '7.4-fpm'
   LOCAL_PHP_XDEBUG: true
   LOCAL_PHP_XDEBUG_MODE: 'coverage'

.github/workflows/test-npm.yml

@@ -37,9 +37,6 @@ concurrency:
 # Any needed permissions should be configured at the job level.
 permissions: {}
 
-env:
-  PUPPETEER_SKIP_DOWNLOAD: ${{ true }}
-
 jobs:
   # Verifies that installing npm dependencies and building WordPress works as expected.
   #