Implement not_contains assertion in assertion_checker.zig

[bradcypert]

Add support for not_contains assertions in the assertion_checker.zig file. This should allow users to assert that a value does not contain a specified substring or element. Update the assertion logic to include this new assertion type, ensure appropriate error messages are generated when the assertion fails, and add relevant tests to verify the new functionality.

[bradcypert]

@claude can you work this one?

[claude]

Claude finished @bradcypert's task —— View job

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Summary

The not_contains assertion is already fully implemented and tested in this codebase!

What I Found

✅ Complete Implementation in assertion_checker.zig:

• Full not_contains case handling (lines 135-160)
• Supports status, body, and header assertions
• Proper error messages:
  • "Expected status code to NOT contain "{s}", got "{s}"
  • "Expected body content to NOT contain "{s}", got "{s}"
  • "Expected header "{s}" to NOT contain "{s}", got "{s}"

✅ Parser Support in parser.zig:

• AssertionType.not_contains enum variant (line 13)
• String parsing: "not_contains" → AssertionType.not_contains (line 24)

✅ Test Coverage:

• Comprehensive test in assertion_checker.zig (lines 1-43)
• Tests both contains and not_contains for headers
• Verifies assertions pass when header contains "json" but not "xml"

Usage Example

Based on the existing test, users can already use:

//# header["content-type"] not_contains xml
//# body not_contains error
//# status not_contains 40

The issue appears to be outdated - the not_contains assertion feature is complete and ready to use.