Test Coverage Assessment for PR #69

Summary

This PR adds the gro drive search command with comprehensive unit tests for the core business logic. The test coverage is adequate for this type of change.

What's Well-Tested

Command structure (TestSearchCommand):

• Command Use and Short fields
• Argument validation (0 or 1 args)
• All 8 flags verified (max, name, type, owner, modified-after, modified-before, in-folder, json)

Query building (TestBuildSearchQuery):

• Full-text search vs. name-only search
• All filter types: type, owner, modified-after, modified-before, in-folder
• Combined filters
• Error case for invalid file type
• Empty query with filters

Query escaping (TestEscapeQueryString):

• Single quote escaping
• Empty strings
• Multiple quotes

Coverage Gaps (Acceptable)

The runSearch function is not directly tested (0% coverage), which follows the existing pattern in this codebase. This function:

1. Creates the Drive client (tested at integration level)
2. Calls buildSearchQuery (100% tested)
3. Calls client.ListFiles (API layer, tested elsewhere)
4. Handles output with printFileTable and printJSON (shared utilities)

The codebase provides a ClientFactory hook for mocking but no existing tests use it - this is a pre-existing gap, not introduced by this PR.

Edge Cases Covered

• Query with special characters (single quotes)
• Empty query string
• All filter combinations
• Invalid file type error propagation

Verdict

Approve - The tests cover the critical business logic (buildSearchQuery, escapeQueryString) which is where bugs are most likely to occur. The untested runSearch function is thin glue code that follows an established pattern in the codebase. The test coverage is pragmatic and appropriate.