Playwright E2E Tests

Guidelines for writing and iterating on Playwright tests for VS Code extensions.

Required Reading

Read ALL before responding:

• references/coding-playwright-tests.md - Writing tests
• references/iterating-playwright-tests.md - Iterating on tests (lines 34-37: "Things to ignore")
• references/analyze-e2e.md - Analyzing E2E test results from CI

Use playwright-vscode-ext

Shared code (helpers, locators, configuration) for tests.

Span files (when debugging traces)

Local only — span export disabled in CI/GHA.

• Output: ~/.sf/vscode-spans/ — web-*.jsonl (test:web), node-*.jsonl (test:desktop)
• Auto-enabled when !CI (no manual enable needed)
• Latest: ls -lt ~/.sf/vscode-spans/
• Clear before run for fresh output: rm -rf ~/.sf/vscode-spans/
• Format: JSONL; parse each line with JSON.parse
• Fields: name, traceId, spanId, parentSpanId, durationMs, status, startTime, attributes

See .claude/skills/span-file-export/SKILL.md for enable/OTLP vs file.

References

• https://playwright.dev/docs - Playwright docs