Adds extensive test coverage for the array append syntax (key[]=value)
which provides npm compatibility for package.json manipulation.
Also implements the proper Zig code to handle array append functionality:
- Detects key[]=value syntax and routes to array append logic
- Creates new arrays when property doesn't exist
- Appends to existing arrays correctly
- Handles nested array append (config.tags[]=value)
- Provides proper error handling for non-array properties
- Maintains array structure and order
Tests cover:
- Appending to existing arrays
- Creating new arrays when property doesn't exist
- Multiple array appends in single command
- Nested array append syntax (config.tags[]=value)
- Error handling for non-array properties
- JSON value parsing with --json flag
- Complex object appending
- Array order preservation
- Compatibility with npm pkg behavior
All tests pass: 83 pass, 3 todo, 0 fail (275 expect() calls)
Fixes#22035🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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