[TestGru] Add unit test for src/utils/point_in_time.ts

[gru-agent]

Trigger Info

Trigger Type	Triggered By	Source File	Assignment
Manual	zthreefires	src/utils/point_in_time.ts	Detail

Summary

This PR introduces unit tests for the parsePITBranch and parsePointInTime utility functions, ensuring proper validation and behavior for parsing point-in-time (PIT) branches and resolving PIT references. Key highlights include:

• parsePITBranch Tests:

  • Validates parsing of branches without PIT (e.g., main).

  • Tests parsing of branches with LSN (e.g., main@0/0).

  • Validates branches with timestamps, including checks for invalid or future timestamps.

  • Ensures appropriate errors are thrown for invalid formats.

• parsePointInTime Tests:

  • Resolves special references like ^self and ^parent.

  • Handles cases where the parent branch is not found, throwing appropriate errors.

  • Validates custom branches with LSN, leveraging mocked branchIdResolve.

• Mocks and Spies:

  • Mocked formats.looksLikeLSN and formats.looksLikeTimestamp for format validation.

  • Mocked getProjectBranch API call for resolving parent branches.

  • Mocked branchIdResolve for resolving custom branch IDs.

These tests ensure robust handling of PIT parsing logic and improve confidence in the utility's correctness.

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