Add comprehensive test suite for error handling (PR #9275)

[continue-development-app]

Summary

This PR adds comprehensive tests for the error handling improvements made in PR #9275.

Changes

• 23 tests for and functions in
• 10 unit tests for error tracking and exit code transformation in
• Test documentation explaining all test scenarios and implementation details

Test Coverage

Exit Code Transformation

✅ Exit with code 0 when no errors
✅ Exit with code 1 when unhandled error occurred and code 0 requested
✅ Preserve non-zero exit codes even if unhandled error occurred
✅ Preserve SIGINT exit code (130) even if unhandled error occurred

Telemetry and Sentry Flushing

✅ Flush telemetry and sentry before exiting
✅ Handle telemetry shutdown errors gracefully
✅ Handle sentry flush errors gracefully
✅ Handle both telemetry and sentry errors gracefully

Metadata Collection and Posting

✅ Update metadata with diff stats, summary, and usage
✅ Handle git diff errors gracefully
✅ Handle summary extraction errors gracefully
✅ Handle usage calculation errors gracefully
✅ Handle API posting errors gracefully

Error Tracking Behavior

✅ Track unhandled rejection flag
✅ Track uncaught exception flag
✅ Persist error flag after being set
✅ Only report to API when agent ID is set

Running the Tests

# Run all error handling tests
npm test -- exit.test.ts errorHandling.unit.test.ts

# All 33 tests pass

Documentation

See src/test-documentation.md for detailed documentation of all test scenarios and implementation details.

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This agent session was co-authored by peter-parker and Continue.

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Summary by cubic

Adds a comprehensive test suite for CLI error handling to verify exit code coercion (0→1 on unhandled errors), graceful telemetry/Sentry shutdown, and safe agent metadata reporting. Improves confidence in the behavior introduced by PR #9275 and documents the scenarios covered.

• New Features

  • Added 23 tests for gracefulExit and updateAgentMetadata.
  • Added 10 unit tests for error tracking and exit code transformation.
  • Added test documentation covering diff stats, summaries, usage, and failure paths.

• Dependencies

  • Bumped @aws-sdk/client-bedrock-runtime and @aws-sdk/credential-providers to ^3.931.0 in extensions/cli.

^{Written for commit 5670589. Summary will update automatically on new commits.}

[cubic-dev-ai]

No issues found across 5 files

[continue]

This PR adds comprehensive tests for the error handling improvements in PR #9275. Since this PR only adds test files and doesn't change any user-facing behavior or features, no documentation updates are required. The error handling improvements (exiting with non-zero codes on unhandled errors) are internal implementation details that work automatically without requiring user awareness or configuration changes.

[RomneyDa]

Conflicts and a bit overkill.