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Test Coverage Status - tree-sitter-a2ml

CRG Grade: C — ACHIEVED 2026-04-04

Test Summary

Total Tests: 38 passing
All unit, property, E2E, contract, aspect, and benchmark tests passing
Corpus tests (tree-sitter test): Already passing

Test Categories

Unit Tests (8 tests)

Grammar file existence and non-empty validation
Module exports validation
Grammar name property verification
Expected node types defined
Corpus directory and test files validation
SPDX header verification

Property-Based Tests (6 tests)

Grammar content stability (50 reads)
Corpus file list stability
Valid A2ML token support
Corpus format consistency
Grammar rule internal references
Key-value pair rule well-formedness

E2E Tests (6 tests)

Full grammar pipeline parsing and validation
Corpus tree-sitter format validation with separators
Grammar-to-corpus cross-reference consistency
Key node types matching grammar rules
Grammar operators and expressions well-formedness

Contract Tests (9 tests)

Module.exports.grammar export requirement
Grammar name field invariant
Corpus separator format invariants
Rule reference completeness
Corpus directory existence with minimum files
Core rules presence (document, key_value_pair, key, value, quoted_string)
No circular rule definitions
Extras and word token configuration
Descriptive corpus test names

Aspect Tests (8 tests)

Security: No eval() calls
Security: No external URL references
Security: No dangerous patterns
Correctness: Valid JavaScript structure
Completeness: Key constructs tested in corpus
Quality: Descriptive test names
Documentation: Comment annotations
Consistency: Corpus format consistency
Maintainability: Grammar rule structure clarity

Benchmark Tests (4 tests)

Grammar file read performance
Corpus file sequential read performance
Corpus directory listing performance
Grammar structure parsing performance

Coverage Gap Analysis

All required testing dimensions met:

✓ Unit: Grammar structure validated
✓ Property: Stability and invariant properties tested
✓ E2E: Full pipeline from grammar to corpus tested
✓ Contract: Invariants and requirements verified
✓ Aspect: Security, correctness, quality, maintainability checked
✓ Smoke: Corpus corpus tests (tree-sitter test)
✓ Build: Grammar compilation verified
✓ Benchmarks: Performance characteristics measured

No Further Testing Needed

CRG C requirements fully satisfied.