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feat(trace): experimental traces for our tests #3567

Merged
merged 2 commits into from
Aug 28, 2020
Merged

feat(trace): experimental traces for our tests #3567

merged 2 commits into from
Aug 28, 2020

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dgozman
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@dgozman dgozman commented Aug 21, 2020 •
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This introduces basic tracing enabled in our tests.

What is captured:

  • network resources;
  • snapshots at the start of most actions;
  • snapshot after the test failure.

How this integrates with test runner:

  • context fixture calls private method context._initSnapshotter() and uses Tracer to trace all events;
  • all tests share a single test-results/trace-storage directory to store blobs;
  • each test has its own trace file.

npm run show-trace opens a bare-minimum trace viewer that renders snapshots.

@dgozman dgozman changed the title [WIP] feat(trace): experimental traces for our tests feat(trace): experimental traces for our tests Aug 24, 2020
@dgozman dgozman marked this pull request as ready for review August 24, 2020 22:45
pavelfeldman
pavelfeldman approved these changes Aug 25, 2020
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test/showTrace.js Outdated Show resolved Hide resolved
test/playwright.fixtures.ts Outdated Show resolved Hide resolved
test-runner/src/builtin.fixtures.ts Outdated Show resolved Hide resolved
src/utils/traceTypes.ts Outdated Show resolved Hide resolved
src/utils/traceTypes.ts Outdated Show resolved Hide resolved
src/server/trace/traceController.ts Outdated Show resolved Hide resolved
src/server/trace/snapshotter.ts Outdated Show resolved Hide resolved
src/server/trace/snapshotter.ts Outdated Show resolved Hide resolved
src/server/browserContext.ts Outdated Show resolved Hide resolved
src/client/traceViewer.ts Outdated Show resolved Hide resolved
@dgozman
feat(trace): experimental traces for our tests
9148d6c 
This introduces basic tracing enabled in our tests:

- capturing network resources;
- capturing snapshots at the start of most actions;
- manually capturing snapshots by test runner when the test fails.
@dgozman
Introduce interface.
c20f816
@dgozman dgozman merged commit b34d9ab into microsoft:master Aug 28, 2020
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@pavelfeldman pavelfeldman pavelfeldman approved these changes

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@dgozman @pavelfeldman