Make frontend fixtures parallel with knapsack

- Split ee and non-ee fixtures
- Set up ee fixtures to run in parallel

.gitlab/ci/frontend.gitlab-ci.yml

@@ -97,32 +97,41 @@ update-yarn-cache:
     - .rails-cache
     - .use-pg11
   stage: fixtures
-  needs: ["setup-test-env", "compile-test-assets"]
+  needs: ["setup-test-env", "retrieve-tests-metadata", "compile-test-assets"]
   variables:
     SETUP_DB: "true"
     WEBPACK_VENDOR_DLL: "true"
   script:
+    - run_timed_command "gem install knapsack --no-document"
     - run_timed_command "scripts/gitaly-test-build"
     - run_timed_command "scripts/gitaly-test-spawn"
-    - run_timed_command "bin/rake frontend:fixtures"
+    - source ./scripts/rspec_helpers.sh
+    - rspec_paralellized_job "--tag frontend_fixture"
   artifacts:
     name: frontend-fixtures
     expire_in: 31d
     when: always
     paths:
       - tmp/tests/frontend/
+      - knapsack/
 
-frontend-fixtures:
+rspec frontend_fixture:
   extends:
     - .frontend-fixtures-base
     - .frontend:rules:default-frontend-jobs
 
-frontend-fixtures-as-if-foss:
+rspec frontend_fixture as-if-foss:
   extends:
     - .frontend-fixtures-base
     - .frontend:rules:default-frontend-jobs-as-if-foss
     - .as-if-foss
 
+rspec-ee frontend_fixture:
+  extends:
+    - .frontend-fixtures-base
+    - .frontend:rules:default-frontend-jobs
+  parallel: 2
+
 .frontend-test-base:
   extends:
     - .frontend-base
@@ -152,7 +161,8 @@ karma:
   extends:
     - .karma-base
     - .frontend:rules:default-frontend-jobs
-  needs: ["frontend-fixtures"]
+  # Don't use `needs` since `rspec-ee frontend_fixture` doesn't exist in `gitlab-foss` pipelines.
+  dependencies: ["rspec frontend_fixture", "rspec-ee frontend_fixture"]
   coverage: '/^Statements *: (\d+\.\d+%)/'
   artifacts:
     name: coverage-javascript
@@ -171,7 +181,7 @@ karma-as-if-foss:
     - .karma-base
     - .frontend:rules:default-frontend-jobs-as-if-foss
     - .as-if-foss
-  needs: ["frontend-fixtures-as-if-foss"]
+  needs: ["rspec frontend_fixture as-if-foss"]
 
 .jest-base:
   extends: .frontend-test-base
@@ -183,7 +193,8 @@ jest:
   extends:
     - .jest-base
     - .frontend:rules:default-frontend-jobs
-  needs: ["frontend-fixtures"]
+  # Don't use `needs` since `rspec-ee frontend_fixture` doesn't exist in `gitlab-foss` pipelines.
+  dependencies: ["rspec frontend_fixture", "rspec-ee frontend_fixture"]
   artifacts:
     name: coverage-frontend
     expire_in: 31d
@@ -203,14 +214,15 @@ jest-integration:
   script:
     - *yarn-install
     - run_timed_command "yarn jest:integration --ci"
-  needs: ["frontend-fixtures"]
+  # Don't use `needs` since `rspec-ee frontend_fixture` doesn't exist in `gitlab-foss` pipelines.
+  dependencies: ["rspec frontend_fixture", "rspec-ee frontend_fixture"]
 
 jest-as-if-foss:
   extends:
     - .jest-base
     - .frontend:rules:default-frontend-jobs-as-if-foss
     - .as-if-foss
-  needs: ["frontend-fixtures-as-if-foss"]
+  needs: ["rspec frontend_fixture as-if-foss"]
   parallel: 2
 
 coverage-frontend:

.gitlab/ci/test-metadata.gitlab-ci.yml

@@ -28,6 +28,8 @@ update-tests-metadata:
   dependencies:
     - setup-test-env
     - rspec migration pg11
+    - rspec frontend_fixture
+    - rspec-ee frontend_fixture
     - rspec unit pg11
     - rspec integration pg11
     - rspec system pg11

lib/quality/test_level.rb

@@ -12,6 +12,9 @@ module Quality
         lib/gitlab/background_migration
         lib/ee/gitlab/background_migration
       ],
+      frontend_fixture: %w[
+        frontend/fixtures
+      ],
       unit: %w[
         bin
         channels
@@ -63,7 +66,7 @@ module Quality
     end
 
     def pattern(level)
-      @patterns[level] ||= "#{prefix}spec/#{folders_pattern(level)}{,/**/}*_spec.rb"
+      @patterns[level] ||= "#{prefix}spec/#{folders_pattern(level)}{,/**/}*#{suffix(level)}"
     end
 
     def regexp(level)
@@ -76,6 +79,9 @@ module Quality
       # spec/lib/gitlab/background_migration and tests under spec/lib are unit by default
       when regexp(:migration), regexp(:background_migration)
         :migration
+      # Detect frontend fixture before matching other unit tests
+      when regexp(:frontend_fixture)
+        :frontend_fixture
       when regexp(:unit)
         :unit
       when regexp(:integration)
@@ -93,6 +99,15 @@ module Quality
 
     private
 
+    def suffix(level)
+      case level
+      when :frontend_fixture
+        ".rb"
+      else
+        "_spec.rb"
+      end
+    end
+
     def migration_and_background_migration_folders
       TEST_LEVEL_FOLDERS.fetch(:migration) + TEST_LEVEL_FOLDERS.fetch(:background_migration)
     end

spec/lib/quality/test_level_spec.rb

@@ -18,6 +18,13 @@ RSpec.describe Quality::TestLevel do
       end
     end
 
+    context 'when level is frontend_fixture' do
+      it 'returns a pattern' do
+        expect(subject.pattern(:frontend_fixture))
+          .to eq("spec/{frontend/fixtures}{,/**/}*.rb")
+      end
+    end
+
     context 'when level is unit' do
       it 'returns a pattern' do
         expect(subject.pattern(:unit))
@@ -86,6 +93,13 @@ RSpec.describe Quality::TestLevel do
       end
     end
 
+    context 'when level is frontend_fixture' do
+      it 'returns a regexp' do
+        expect(subject.regexp(:frontend_fixture))
+          .to eq(%r{spec/(frontend/fixtures)})
+      end
+    end
+
     context 'when level is unit' do
       it 'returns a regexp' do
         expect(subject.regexp(:unit))
@@ -144,6 +158,10 @@ RSpec.describe Quality::TestLevel do
       expect(subject.level_for('spec/models/abuse_report_spec.rb')).to eq(:unit)
     end
 
+    it 'returns the correct level for a frontend fixture test' do
+      expect(subject.level_for('spec/frontend/fixtures/pipelines.rb')).to eq(:frontend_fixture)
+    end
+
     it 'returns the correct level for a tooling test' do
       expect(subject.level_for('spec/tooling/lib/tooling/test_file_finder_spec.rb')).to eq(:unit)
     end