main_diff.txt

--- real_dotgithub/workflows/main.yaml	2025-12-11 23:02:44.826932581 +0000
+++ dotgithub/workflows/main.yaml	2025-12-13 08:59:13.646531333 +0000
@@ -205,12 +205,12 @@
           # Create a zero-indexed list of shards for use by matrix, e.g. [0,1,2,3,4,5].
           gtest_shards="[$(seq -s, 0 1 $((${num_gtest_shards} - 1)))]"
           echo "gtest_shards=${gtest_shards}" >> $GITHUB_OUTPUT
-      - name: Set Docker files checksum
+      - name: Set Docker files checksum (Mock)
         id: set-docker-hash
         shell: bash
         run: |
           set -x
-          docker_content_sha=$(find cobalt/docker docker-compose.yaml -type f -exec sha256sum -b {} + | LC_ALL=C sort | sha256sum | head -c 64)
+          docker_content_sha="dummy-sha"
           echo "docker_content_sha=${docker_content_sha}" >> $GITHUB_OUTPUT
     outputs:
       platforms: ${{ steps.set-platforms.outputs.platforms }}
@@ -236,7 +236,7 @@
   # Builds, tags, and pushes Cobalt docker build images to ghr.
   docker-build-image:
     needs: [initialize]
-    runs-on: [self-hosted, chrobalt-linux-runner]
+    runs-on: ubuntu-latest
     steps:
       - name: Restore CI Essentials
         uses: actions/download-artifact@v4
@@ -257,7 +257,7 @@
   docker-unittest-image:
     if: needs.initialize.outputs.test_on_host == 'true'
     needs: [initialize]
-    runs-on: [self-hosted, chrobalt-linux-runner]
+    runs-on: ubuntu-latest
     steps:
       - name: Restore CI Essentials
         uses: actions/download-artifact@v4
@@ -278,7 +278,7 @@
   docker-webtest-image:
     if: needs.initialize.outputs.web_tests == 'true'
     needs: [initialize]
-    runs-on: [self-hosted, chrobalt-linux-runner]
+    runs-on: ubuntu-latest
     steps:
       - name: Restore CI Essentials
         uses: actions/download-artifact@v4
@@ -298,7 +298,7 @@
   build:
     needs: [initialize, docker-build-image]
     permissions: {}
-    runs-on: [self-hosted, chrobalt-linux-runner]
+    runs-on: ubuntu-latest
     name: ${{ matrix.name }}_${{ matrix.config }}
     strategy:
       fail-fast: false
@@ -308,8 +308,6 @@
         config: ${{ fromJson(needs.initialize.outputs.build_configs) }}
     container:
       image: ${{ needs.docker-build-image.outputs.docker_tag }}
-      volumes:
-        - /runner-cache:/runner-cache
     env:
       TEST_ARTIFACTS_KEY: ${{ matrix.platform }}_${{ matrix.name }}_test_artifacts
       DEPOT_TOOLS_UPDATE: 0
@@ -328,8 +326,8 @@
           path: pre-run
           name: ci-essentials-${{ inputs.platform }}
 
-      - name: Prepare Workspace for Checkout
-        uses: ./pre-run/.github/actions/prepare-runner-cache
+      - name: Prepare Workspace for Checkout (Mock)
+        run: echo "Mocking prepare cache"
 
       - name: Checkout
         uses: actions/checkout@v4
@@ -343,45 +341,26 @@
           fetch-depth: ${{ ( github.event_name == 'pull_request' || github.repository == 'youtube/cobalt_sandbox' ) && 2 || 0 }}
           clean: false
 
-      - name: Set Up Depot Tools
-        id: setup-depot-tools
-        continue-on-error: true
-        uses: ./cobalt/src/.github/actions/depot_tools
-
-      - name: Retry Depot Tools Set Up
-        if: steps.setup-depot-tools.outcome != 'success'
-        uses: ./cobalt/src/.github/actions/depot_tools
-        with:
-          use_cache: false
+      - name: Set Up Depot Tools (Mock)
+        run: echo "Mocking depot tools"
+
+      - name: Retry Depot Tools Set Up (Mock)
+        run: echo "Mocking retry"
 
       - name: Build Cobalt
         id: build
-        uses: ./cobalt/src/.github/actions/build
-        # TODO(bug?): android debug builds are broken.
-        if: ${{ ! (contains(matrix.platform, 'android') && matrix.config == 'debug') }}
+        uses: ./.github/actions/build
         with:
-          targets: ${{ needs.initialize.outputs.targets }}
-          test_root_target: ${{ needs.initialize.outputs.test_root_target }}
-          test_targets_json_file: out/${{ matrix.platform }}_${{ matrix.config }}/test_targets.json
-
-      - name: Release Package
-        if:  (matrix.config == 'qa' || matrix.config == 'gold') && (needs.initialize.outputs.test_package == 'true' || needs.initialize.outputs.test_e2e == 'true')
-        uses: ./cobalt/src/.github/actions/package
-        with:
-          package_dir: out/test-package
-
-      - name: Upload Test Artifacts
-        uses: ./cobalt/src/.github/actions/upload_test_artifacts
-        with:
-          test_artifacts_key: ${{ env.TEST_ARTIFACTS_KEY }}
-          upload_on_host_test_artifacts: ${{ matrix.config == 'devel' && (needs.initialize.outputs.test_on_host == 'true' || needs.initialize.outputs.web_tests == 'true') }}
-          upload_on_device_test_artifacts: ${{ matrix.config == 'devel' && needs.initialize.outputs.test_on_device == 'true' }}
-          upload_e2e_test_artifacts: ${{ matrix.config == 'qa' && needs.initialize.outputs.test_e2e == 'true' }}
-          test_targets_json_file: out/${{ matrix.platform }}_${{ matrix.config }}/test_targets.json
-
-      - name: Run API Leak Detector
-        uses: ./cobalt/src/.github/actions/api_leak_detector
-        if: inputs.run_api_leak_detector
+          platform: ${{ matrix.platform }}
+          config: ${{ matrix.config }}
+
+      - name: Release Package (Mock)
+        run: echo "Mocking package"
+      - name: Upload Test Artifacts (Mock)
+        run: echo "Mocking upload"
+
+      - name: Run API Leak Detector (Mock)
+        run: echo "Mocking leak detector"
 
   on-device-test:
     needs: [initialize, build]
@@ -392,7 +371,7 @@
           ((inputs.nightly == 'true' || github.event_name == 'schedule') && vars.RUN_ODT_TESTS_ON_NIGHTLY != 'False') ||
           (github.event_name == 'push' && vars.RUN_ODT_TESTS_ON_POSTSUBMIT != 'False')
         )
-    runs-on: [self-hosted, odt-runner]
+    runs-on: ubuntu-latest
     name: ${{ matrix.name }}_on_device_tests
     permissions: {}
     strategy:
@@ -404,23 +383,17 @@
     env:
       TEST_RESULTS_KEY: ${{ matrix.platform }}_${{ matrix.name }}_test_results
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
       - name: Restore CI Essentials
         uses: actions/download-artifact@v4
         with:
           name: ci-essentials-${{ inputs.platform }}
-      - name: Parse Test Target JSON
+      - name: Parse Test Target JSON (Mock)
         id: test-target-json
-        uses: ./.github/actions/test_targets_json
-      - name: Run On-Device Tests
-        if: ${{ fromJson(steps.test-target-json.outputs.test_targets_count) > 0 }}
-        uses: ./.github/actions/on_device_tests
-        with:
-          test_targets_json: ${{ steps.test-target-json.outputs.test_targets_json }}
-          test_results_key: ${{ env.TEST_RESULTS_KEY }}
-          gcs_results_path: gs://cobalt-unittest-storage/results/${{ matrix.name }}/${{ github.run_id }}/${{ github.run_attempt }}
-          test_dimensions: '${{ needs.initialize.outputs.test_dimensions }}'
-          test_device_family: '${{ needs.initialize.outputs.test_device_family}}'
-          test_attempts: '${{ needs.initialize.outputs.test_attempts }}'
+        run: echo 'test_targets_json=["cobalt:gn_all"]' >> $GITHUB_OUTPUT && echo "test_targets_count=1" >> $GITHUB_OUTPUT
+      - name: Run On-Device Tests (Mock)
+        run: echo "Mocking on device tests" && mkdir -p results && cp results/fake_unittests_result.xml results/unittest_result.xml
     outputs:
       test_targets_json: ${{ steps.test-target-json.outputs.test_targets_json }}
 
@@ -435,7 +408,7 @@
           ((inputs.nightly == 'true' || github.event_name == 'schedule') && vars.RUN_ODT_TESTS_ON_NIGHTLY != 'False') ||
           (github.event_name == 'push' && vars.RUN_ODT_TESTS_ON_POSTSUBMIT != 'False')
         )
-    runs-on: [self-hosted, odt-runner]
+    runs-on: ubuntu-latest
     name: ${{ matrix.name }}_e2e_tests
     permissions: {}
     strategy:
@@ -447,18 +420,14 @@
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Run E2E Tests
-        uses: ./.github/actions/e2e_tests
-        with:
-          e2e_test_targets: '${{ needs.initialize.outputs.e2e_test_targets }}'
-          test_attempts: '${{ needs.initialize.outputs.e2e_test_attempts }}'
-          test_dimensions: '${{ needs.initialize.outputs.test_dimensions }}'
+      - name: Run E2E Tests (Mock)
+        run: echo "Mocking E2E tests"
 
   on-host-test:
     needs: [initialize, docker-unittest-image, build]
     if: needs.initialize.outputs.test_on_host == 'true'
     permissions: {}
-    runs-on: [self-hosted, chrobalt-linux-runner]
+    runs-on: ubuntu-latest
     name: ${{ matrix.name }}_on_host_tests_${{ matrix.shard }}
     strategy:
       fail-fast: false
@@ -473,20 +442,17 @@
       TEST_ARTIFACTS_KEY: ${{ matrix.platform }}_${{ matrix.name }}_test_artifacts
       TEST_RESULTS_KEY: ${{ matrix.platform }}_${{ matrix.name }}_test_results-${{ matrix.shard }}
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
       - name: Restore CI Essentials
         uses: actions/download-artifact@v4
         with:
           name: ci-essentials-${{ inputs.platform }}
-      - name: Parse Test Target JSON
+      - name: Parse Test Target JSON (Mock)
         id: test-target-json
-        uses: ./.github/actions/test_targets_json
-      - name: Run On-Host Tests
-        if: ${{ fromJson(steps.test-target-json.outputs.test_targets_count) > 0 }}
-        uses: ./.github/actions/on_host_tests
-        with:
-          test_artifacts_key: ${{ env.TEST_ARTIFACTS_KEY }}
-          test_results_key: ${{ env.TEST_RESULTS_KEY }}
-          num_gtest_shards: ${{ needs.initialize.outputs.num_gtest_shards }}
+        run: echo 'test_targets_json=["cobalt:gn_all"]' >> $GITHUB_OUTPUT && echo "test_targets_count=1" >> $GITHUB_OUTPUT
+      - name: Run On-Host Tests (Mock)
+        run: exit 1
     outputs:
       test_targets_json: ${{ steps.test-target-json.outputs.test_targets_json }}
 
@@ -494,7 +460,7 @@
     needs: [initialize, docker-webtest-image, build]
     if: needs.initialize.outputs.web_tests == 'true'
     permissions: {}
-    runs-on: [self-hosted, chrobalt-linux-runner]
+    runs-on: ubuntu-latest
     name: ${{ matrix.name }}_web_tests
     strategy:
       fail-fast: false
@@ -504,8 +470,6 @@
         config: [devel]
     container:
       image: ${{ needs.docker-webtest-image.outputs.docker_tag }}
-      volumes:
-        - /runner-cache:/runner-cache
     env:
       DEPOT_TOOLS_UPDATE: 0
       DEPOT_TOOLS_REPORT_BUILD: 0
@@ -519,30 +483,19 @@
         with:
           path: pre-run
           name: ci-essentials-${{ inputs.platform }}
-      - name: Prepare Workspace for Checkout
-        uses: ./pre-run/.github/actions/prepare-runner-cache
+      - name: Prepare Workspace for Checkout (Mock)
+        run: echo "Mocking prepare cache"
       - name: Checkout
         uses: actions/checkout@v4
         with:
           path: cobalt/src
           clean: false
-      - name: Set Up Depot Tools
-        id: setup-depot-tools
-        continue-on-error: true
-        uses: ./cobalt/src/.github/actions/depot_tools
-        with:
-          run_sync: false
-      - name: Retry Depot Tools Set Up
-        if: steps.setup-depot-tools.outcome != 'success'
-        uses: ./cobalt/src/.github/actions/depot_tools
-        with:
-          run_sync: false
-          use_cache: false
-      - name: Run Web Tests
-        uses: ./cobalt/src/.github/actions/web_tests
-        with:
-          test_artifacts_key: ${{ env.TEST_ARTIFACTS_KEY }}
-          test_results_key: Blink Web Test Results ${{ github.workflow }}
+      - name: Set Up Depot Tools (Mock)
+        run: echo "Mocking depot tools"
+      - name: Retry Depot Tools Set Up (Mock)
+        run: echo "Mocking retry"
+      - name: Run Web Tests (Mock)
+        run: echo "Mocking web tests"
 
   test-results:
     needs: [initialize, build, on-device-test, on-host-test]
@@ -594,35 +547,15 @@
       - name: Download Test Results
         if: steps.filter.outputs.skipped != 'true'
         uses: actions/download-artifact@v4
-        with:
+        run: echo "Mocking test results" && mkdir -p results && echo "<testsuites><testsuite name="dummy" tests="1" failures="0"><testcase name="case1"/></testsuite></testsuites>" > results/dummy_pass.xml
           pattern: ${{ env.TEST_RESULTS_KEY }}*
           path: results/
-      - name: Test Results
-        if: steps.filter.outputs.skipped != 'true'
-        uses: ./.github/actions/process_test_results
-        with:
-          target_name: ${{ matrix.test_target }}
-          results_glob: results/**/${{ steps.extract-target-name.outputs.test_target }}*.xml
-          datadog_api_key: ${{ secrets.datadog_api_key }}
-          num_gtest_shards: ${{ needs.initialize.outputs.num_gtest_shards }}
-      - name: ${{ matrix.test_target }} Device Logs
-        if: always() && steps.filter.outputs.skipped != 'true' && needs.initialize.outputs.test_on_device == 'true'
-        continue-on-error: true
-        uses: ./.github/actions/print_logs
-        with:
-          log_glob: results/**/${{ steps.extract-target-name.outputs.test_target }}*logcat.txt
-          # TODO: Enable symbolization when it works.
-          # symbolize: true
-          symbolize: 'false'
-      - name: ${{ matrix.test_target }} Test Logs
-        if: always() && steps.filter.outputs.skipped != 'true'
-        uses: ./.github/actions/print_logs
-        with:
-          log_glob: results/**/${{ steps.extract-target-name.outputs.test_target }}*log.txt
-          results_glob: results/**/${{ steps.extract-target-name.outputs.test_target }}*.xml
-          # TODO: Enable symbolization when it works.
-          # symbolize: ${{ needs.initialize.outputs.test_on_device == 'true' }}
-          symbolize: 'false'
+      - name: Test Results (Mock)
+        run: echo "Mocking test results processing for ${{ matrix.test_target }}"
+      - name: ${{ matrix.test_target }} Device Logs (Mock)
+        run: echo "Mocking device logs"
+      - name: ${{ matrix.test_target }} Test Logs (Mock)
+        run: echo "Mocking test logs"
 
   validate-test-result:
     needs: [initialize, build, test-results]
@@ -643,15 +576,15 @@
         with:
           name: ci-essentials-${{ inputs.platform }}
       - name: Download Test Results
-        uses: actions/download-artifact@v4
-        with:
-          pattern: ${{ env.TEST_RESULTS_KEY }}*
-          path: results/
       - name: Failed Tests
-        if: needs.test-results.result == 'failure'
+        if: needs.test-results.result == "failure"
         run: |
           # Print test result summary.
           shopt -s globstar nullglob
           python3 cobalt/tools/junit_mini_parser.py results/**/*.xml
           exit 1
         shell: bash
+          pattern: ${{ env.TEST_RESULTS_KEY }}*
+          path: results/
+      - name: Failed Tests (Mock)
+        run: echo "Mocking failed tests summary" && exit 0