Issue #3516242 by bluegeek9: Code Coverage Metrics

Closes #3516242

.gitlab-ci.yml

@@ -52,6 +52,38 @@ variables:
   OPT_IN_TEST_NEXT_MINOR: 1
   OPT_IN_TEST_NEXT_MAJOR: 1
   OPT_IN_TEST_MAX_PHP: 1
+  _PHPUNIT_CONCURRENT: 0
+
+phpunit (coverage):
+  extends: phpunit
+  rules:
+    - if: '$SKIP_PHPUNIT == "1"'
+      when: never
+    - when: on_success
+  before_script:
+    # Install and enable PCOV.
+    - echo -e '[pcov]\npcov.directory=.' > /usr/local/etc/php/conf.d/pcov.ini
+    - docker-php-ext-enable pcov
+  variables:
+    REPORT_COVERAGE: "true"
+    _PHPUNIT_EXTRA:
+      value: --coverage-cobertura $CI_PROJECT_DIR/coverage.xml --coverage-text --colors=never --coverage-html $CI_PROJECT_DIR/public/coverage
+  coverage: /^\s*Lines:\s*\d+.\d+\%/
+  artifacts:
+    reports:
+      coverage_report:
+        coverage_format: cobertura
+        path: coverage.xml
+    paths:
+      - junit.xml
+      - apache.access.log.txt
+      - $BROWSERTEST_OUTPUT_DIRECTORY
+      - coverage.xml
+      - public
+
+phpunit:
+  rules:
+    - when: never
 
 
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