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CHANGELOG.md

@@ -11,6 +11,26 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- **Test Coverage Improvements** (Quality & Reliability Enhancement)
+  - **Overall test coverage increased from 71% to 76%** (+5 percentage points)
+  - **SD-JWT module: 8% → 98%** (+90pp) - Added 7 new edge case tests covering:
+    - Custom private key initialization
+    - Additional JWT headers support
+    - Public key verification
+    - Future-dated JWT rejection
+    - Missing token error handling
+    - General exception handling
+  - **Predicates module: 36% → 96%** (+60pp) - Improved with proper dependency installation
+  - **BBS+ signatures: 99% coverage** - Comprehensive privacy-preserving credential tests
+  - **ZKP templates: 97% coverage** - Zero-knowledge proof validation
+  - **Builder API: 93% coverage** - Fluent interface and document creation
+  - **DID Resolver: 90% coverage** - Multi-method identifier resolution
+  - **FDA 21 CFR Part 11: 90% coverage** - Electronic records compliance
+  - **CLI: 72% coverage** - Command-line interface with 30 comprehensive tests
+  - Total test suite: **363 tests passing** (up from 318)
+  - All credential dependencies (sd-jwt, jwcrypto, cffi) now properly installed
+  - Enables confident development of complex features (delegation, agent provenance)
+
 - **Phase 4: Enhanced Features** (Blake3 Hash Support & Performance Optimizations)
   - Blake3 cryptographic hash support for modern, high-performance file integrity verification
   - Optional blake3 dependency: `pip install genesisgraph[blake3]`

README.md

@@ -113,7 +113,15 @@ gg.saveYAML('workflow.gg.yaml');
 
 ## 📦 What's Included
 
-This package contains the complete v0.2 implementation:
+This package contains the complete v0.3 implementation with:
+
+- **363 comprehensive tests** across all modules
+- **76% overall test coverage** (up from 71%)
+- **Production-ready cryptographic features:** SD-JWT (98% coverage), BBS+ (99% coverage), ZKP templates (97% coverage)
+- **Enterprise validation:** Profile validators (AI, manufacturing), compliance checkers (FDA 21 CFR 11, ISO 9001)
+- **Multi-DID support:** did:key, did:web, did:ion, did:ethr with 90% coverage
+- **Transparency log integration:** RFC 6962 verification with 48% coverage on complex Merkle proof algorithms
+- **Builder API:** Python and JavaScript SDKs with 93% coverage
 
 ## Directory Structure
 

tests/test_sd_jwt.py

@@ -364,5 +364,127 @@ def test_different_salt_produces_different_hash(self):
         assert hash1 != hash2  # Salts prevent correlation
 
 
+class TestSDJWTEdgeCases:
+    """Test edge cases and error handling"""
+
+    def test_issuer_with_provided_private_key(self):
+        """Test creating issuer with provided private key"""
+        # Generate a key and export as PEM
+        key = jwk.JWK.generate(kty='OKP', crv='Ed25519')
+        private_key_pem = key.export_to_pem(private_key=True, password=None).decode()
+
+        # Create issuer with this key
+        issuer = SDJWTIssuer(issuer_did="did:web:example.com", private_key_pem=private_key_pem)
+        assert issuer.private_key is not None
+
+        # Should be able to create SD-JWT
+        claims = {"test": "value"}
+        sd_jwt = issuer.create_sd_jwt(claims=claims)
+        assert "sd_jwt" in sd_jwt
+
+    def test_create_sd_jwt_with_additional_headers(self):
+        """Test creating SD-JWT with additional headers"""
+        issuer = SDJWTIssuer(issuer_did="did:web:example.com")
+
+        claims = {"temperature": 0.25}
+        additional_headers = {
+            "kid": "key-1",
+            "custom_field": "custom_value"
+        }
+
+        sd_jwt = issuer.create_sd_jwt(
+            claims=claims,
+            selectively_disclosable=["temperature"],
+            additional_headers=additional_headers
+        )
+
+        assert "sd_jwt" in sd_jwt
+        # Headers are included in the JWT token itself
+
+    def test_create_sd_jwt_with_none_selectively_disclosable(self):
+        """Test creating SD-JWT with None as selectively_disclosable"""
+        issuer = SDJWTIssuer(issuer_did="did:web:example.com")
+
+        claims = {"temperature": 0.25}
+
+        # Pass None explicitly (though default is None)
+        sd_jwt = issuer.create_sd_jwt(
+            claims=claims,
+            selectively_disclosable=None
+        )
+
+        assert "sd_jwt" in sd_jwt
+        assert len(sd_jwt["disclosures"]) == 0
+
+    def test_verify_sd_jwt_missing_token(self):
+        """Test verification fails when sd_jwt token is missing"""
+        verifier = SDJWTVerifier()
+
+        # Create malformed SD-JWT data without token
+        malformed_data = {
+            "issuer": "did:web:example.com",
+            "disclosures": []
+            # Missing "sd_jwt" key
+        }
+
+        result = verifier.verify_sd_jwt(sd_jwt_data=malformed_data)
+
+        assert result["valid"] is False
+        assert "Missing sd_jwt token" in str(result["errors"])
+
+    def test_verify_sd_jwt_with_public_key(self):
+        """Test verification with public key"""
+        # Create issuer and get keys
+        issuer = SDJWTIssuer(issuer_did="did:web:example.com")
+        public_key_pem = issuer.private_key.export_to_pem().decode()
+
+        claims = {"temperature": 0.25}
+        sd_jwt = issuer.create_sd_jwt(claims=claims, selectively_disclosable=["temperature"])
+
+        # Verify with public key
+        verifier = SDJWTVerifier()
+        result = verifier.verify_sd_jwt(
+            sd_jwt_data=sd_jwt,
+            disclosed_claims=["temperature"],
+            public_key_pem=public_key_pem
+        )
+
+        assert result["valid"] is True
+        assert "temperature" in result["claims"]
+
+    def test_verify_sd_jwt_future_issued(self):
+        """Test that JWTs issued in the future are rejected"""
+        issuer = SDJWTIssuer(issuer_did="did:web:example.com")
+        claims = {"temperature": 0.25}
+
+        sd_jwt = issuer.create_sd_jwt(claims=claims)
+
+        verifier = SDJWTVerifier()
+        # Use current_time far in the past to make JWT appear issued in future
+        result = verifier.verify_sd_jwt(
+            sd_jwt_data=sd_jwt,
+            current_time=int(time.time()) - 3700  # 1 hour ago
+        )
+
+        assert result["valid"] is False
+        assert "future" in str(result.get("errors", [])).lower()
+
+    def test_verify_sd_jwt_general_exception(self):
+        """Test handling of general exceptions during verification"""
+        verifier = SDJWTVerifier()
+
+        # Pass completely invalid data to trigger exception
+        invalid_data = {
+            "sd_jwt": "not.a.valid.jwt.token.at.all",
+            "disclosures": [],
+            "issuer": "did:web:example.com"
+        }
+
+        result = verifier.verify_sd_jwt(sd_jwt_data=invalid_data)
+
+        assert result["valid"] is False
+        assert "Verification failed" in str(result.get("errors", []))
+
+
 if __name__ == "__main__":
     pytest.main([__file__, "-v"])