Engineering - Implement checkpoint reuse for test tasks in pipelines - #334926
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Ladislau Szomoru (lszomoru) wants to merge 1 commit into
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Engineering - Implement checkpoint reuse for test tasks in pipelines#334926Ladislau Szomoru (lszomoru) wants to merge 1 commit into
Ladislau Szomoru (lszomoru) wants to merge 1 commit into
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Ladislau Szomoru (lszomoru)
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Ladislau Szomoru (lszomoru)
September 7, 2026 14:27
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Copilot review overview
🟡 Changes recommended
The checkpoint documentation does not match the implemented setting, scope, or validation tests.
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Review tier: Balanced
Findings: 1
New issues introduced by this change (1)
| Severity | Finding |
|---|---|
 |
build/azure-pipelines/common/test-checkpoints.md — This document describes an obsolete Linux-only pilot: VSCODE_REUSE_SUCCESSFUL_TESTS is not… |
What changed in this PR
Adds reusable test checkpoints so successful product-pipeline tasks can be skipped during retries.
Changes:
- Adds checkpoint restoration, recording, and publishing.
- Integrates checkpointing across supported platform, smoke, integration, and Copilot tests.
- Adds helper and template test coverage.
| File | Summary |
|---|---|
build/lib/test/testCheckpointTemplates.test.ts |
Validates checkpoint templates and wiring. |
build/lib/test/testCheckpoint.test.ts |
Tests checkpoint logic and metadata. |
build/azure-pipelines/win32/steps/product-build-win32-test.yml |
Checkpoints Windows tests. |
build/azure-pipelines/win32/steps/product-build-win32-compile.yml |
Checkpoints the Windows Agent Host smoke test. |
build/azure-pipelines/win32/product-smoke-flaky-win32.yml |
Forwards the checkpoint setting. |
build/azure-pipelines/win32/product-build-win32.yml |
Configures Windows checkpointing. |
build/azure-pipelines/win32/product-build-win32-ci.yml |
Forwards the CI checkpoint setting. |
build/azure-pipelines/product-smoke-flaky.yml |
Disables reuse for flaky pipelines. |
build/azure-pipelines/product-build.yml |
Adds the product-build checkpoint parameter. |
build/azure-pipelines/product-build-TSA.yml |
Disables checkpoint reuse for TSA. |
build/azure-pipelines/product-build-template.yml |
Propagates checkpoint configuration. |
build/azure-pipelines/product-build-ado-ci.yml |
Disables reuse for ADO CI. |
build/azure-pipelines/linux/steps/product-build-linux-test.yml |
Checkpoints Linux tests. |
build/azure-pipelines/linux/steps/product-build-linux-compile.yml |
Checkpoints the Linux Agent Host smoke test. |
build/azure-pipelines/linux/product-smoke-flaky-linux.yml |
Forwards the checkpoint setting. |
build/azure-pipelines/linux/product-build-linux.yml |
Configures Linux checkpointing. |
build/azure-pipelines/linux/product-build-linux-ci.yml |
Forwards the CI checkpoint setting. |
build/azure-pipelines/darwin/steps/product-build-darwin-test.yml |
Checkpoints macOS tests. |
build/azure-pipelines/darwin/steps/product-build-darwin-compile.yml |
Checkpoints the macOS Agent Host smoke test. |
build/azure-pipelines/darwin/product-smoke-flaky-darwin.yml |
Forwards the checkpoint setting. |
build/azure-pipelines/darwin/product-build-darwin.yml |
Configures macOS checkpointing. |
build/azure-pipelines/darwin/product-build-darwin-ci.yml |
Forwards the CI checkpoint setting. |
build/azure-pipelines/copilot/test-integration-steps.yml |
Checkpoints Copilot tests. |
build/azure-pipelines/common/testCheckpoint.ts |
Implements checkpoint state management. |
build/azure-pipelines/common/test-checkpoints.md |
Documents obsolete pilot behavior and must be updated for the implemented setting, scope, and tests. |
build/azure-pipelines/common/run-test-with-checkpoint.yml |
Wraps tests with checkpoint handling. |
build/azure-pipelines/common/restore-test-checkpoints.yml |
Restores checkpoint artifacts. |
build/azure-pipelines/common/publish-test-checkpoint.yml |
Publishes successful-test checkpoints. |
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| # Linux unit-test checkpoint pilot | ||
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| The product pipeline's `VSCODE_REUSE_SUCCESSFUL_TESTS` queue parameter enables | ||
| success checkpoints for Linux x64 unit tests only: |
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This pull request introduces a mechanism to reuse successful test tasks in the product build pipelines by implementing checkpoint artifacts. Key changes include:
testCheckpoint.tsto handle checkpoint logic.test-checkpoints.mdto reflect the new functionality and usage.This implementation aims to reduce redundant test executions, improving build efficiency and reliability, especially in the presence of flaky tests.