# Test Failures — Iteration 60c34f04

## Summary

✅ **All tests passed!** No failures to report.

## Test Execution Results

- **Total tests run**: 307
- **Passed**: 307
- **Failed**: 0
- **Ignored**: 0

## Compiler-Specific Tests

- **Total compiler tests**: 38
- **Original tests**: 19 (all passed - regression check ✅)
- **New function-related tests**: 19 (exceeds requirement of 10 ✅)

### New Function Tests Added

1. `test_compile_function_def_no_params` - Function with 0 params
2. `test_compile_function_def_with_params` - Function with N params
3. `test_compile_function_call_no_args` - Call with 0 args
4. `test_compile_function_call_with_args` - Call with N args
5. `test_compile_function_call_with_expression_args` - Complex expression args
6. `test_compile_return_with_value` - Return with value
7. `test_compile_return_without_value` - Return without value
8. `test_compile_function_scope_isolation` - Scope isolation
9. `test_compile_multiple_functions` - Multiple function definitions
10. `test_compile_nested_call` - Nested function calls
11. `test_compile_function_with_complex_body` - Complex function body
12. `test_compile_function_register_allocation` - Register allocation for params

### Edge Case Tests Added (by QA)

13. `test_compile_empty_function_body` - Empty function body
14. `test_compile_function_with_many_args` - Many arguments
15. `test_compile_function_def_after_main_code` - Function def after main code
16. `test_compile_multiple_returns_in_function` - Multiple returns
17. `test_compile_function_with_all_statement_types_in_body` - All statement types
18. `test_compile_call_with_single_arg` - Single argument edge case
19. `test_compile_nested_function_definitions` - Multiple consecutive function defs

## Coverage Assessment

### Acceptance Criteria Coverage

| AC | Description | Coverage Status |
|----|-------------|-----------------|
| 1 | FunctionDef statements compile to DefineFunction instructions | ✅ Fully covered |
| 2 | Call expressions compile to Call instruction | ✅ Fully covered |
| 3 | Return statements compile to Return instruction | ✅ Fully covered |
| 4 | Compiler tracks function definitions separately | ✅ Fully covered |
| 5 | Compiler allocates registers for arguments and return values | ✅ Fully covered |
| 6 | All existing compiler tests continue to pass | ✅ Verified - 19 tests pass |
| 7 | At least 10 new compiler tests for function compilation | ✅ Exceeded - 19 new tests |

### Edge Cases Covered

- ✅ Empty function bodies
- ✅ Functions with 0, 1, N parameters
- ✅ Calls with 0, 1, N arguments
- ✅ Complex expressions as arguments
- ✅ Nested function calls
- ✅ Multiple function definitions
- ✅ Functions defined before/after main code
- ✅ Multiple return statements
- ✅ All statement types in function bodies
- ✅ Register allocation boundary conditions

### Potential Gaps Identified

No critical gaps identified. The implementation comprehensively covers:
- Basic functionality (function definition, calls, returns)
- Scope isolation
- Register allocation
- Edge cases (empty bodies, multiple returns, etc.)
- Integration with existing compiler infrastructure

## Warnings

One non-critical warning detected:
```
warning: unused variable: `body`
   --> src/parser.rs:912:52
    |
912 |             Statement::FunctionDef { name, params, body } => {
    |                                                    ^^^^ help: try ignoring the field: `body: _`
```

**Note**: This is in parser.rs, not compiler.rs, and does not affect functionality.

## Conclusion

The implementation successfully meets all acceptance criteria with comprehensive test coverage. All tests pass, including regression tests and extensive edge case coverage.
