# jinja2-async-environment Test Strategy Summary

## Overview

This document summarizes the comprehensive testing strategy for the jinja2-async-environment library, addressing current issues and planning for future improvements.

## Current Status

### Test Coverage
- **Current Coverage**: ~41%
- **Target Coverage**: 90%+
- **Coverage Gap**: 49%+ needs to be covered

### Failed Tests
- **Total Failed Tests**: 61
- **Error Tests**: 17
- **Passed Tests**: 251
- **Skipped Tests**: 13

## Immediate Fixes Required

### 1. Constructor Signature Issues (High Priority)
- **AsyncFunctionLoader**: Fix tests to pass only 1 parameter instead of 2
- **AsyncChoiceLoader**: Fix tests to pass only 1 parameter instead of 2

### 2. Method Signature Issues (High Priority)
- **get_source_async**: Fix method calls to include required `name` parameter
- **environment parameter**: Fix method calls to properly pass environment parameter

### 3. Import Issues (Medium Priority)
- **AsyncPackageLoader**: Fix missing import_module in loaders module

### 4. Initialization Issues (Medium Priority)
- **AsyncDictLoader**: Fix searchpath initialization

## Test Improvement Areas

### 1. Core Module Coverage
| Module | Current Coverage | Target Coverage | Gap |
|--------|------------------|-----------------|-----|
| AsyncEnvironment | 92% | 100% | 8% |
| AsyncSandboxedEnvironment | N/A | 100% | 100% |
| Loaders (Base) | 83% | 100% | 17% |
| Loaders (FileSystem) | 39% | 100% | 61% |
| Loaders (Dict) | 86% | 100% | 14% |
| Loaders (Function) | 37% | 100% | 63% |
| Loaders (Package) | 52% | 100% | 48% |
| Loaders (Choice) | 37% | 100% | 63% |
| Compiler | 84% | 100% | 16% |
| Cache | 30-44% | 100% | 56-70% |

### 2. Performance Testing Areas
- Template rendering performance
- Template compilation performance
- Loader operation performance
- Concurrency performance
- Memory usage optimization

### 3. Integration Testing Areas
- Loader combinations
- Complex template scenarios
- Real-world usage patterns
- Web framework integration

### 4. Error Handling Coverage
- Template not found scenarios
- Loader error handling
- Compilation errors
- Runtime errors
- Edge cases

### 5. Backward Compatibility
- API compatibility
- Import compatibility
- Behavior compatibility
- Deprecation handling

## Implementation Roadmap

### Phase 1: Critical Bug Fixes (Week 1)
1. Fix constructor signature issues
2. Fix method signature issues
3. Fix import issues
4. Fix initialization issues
5. **Goal**: Get all tests passing

### Phase 2: Core Coverage Improvement (Weeks 2-3)
1. Add missing unit tests for all modules
2. Improve coverage for low-coverage modules
3. Add integration tests for loader combinations
4. **Goal**: Reach 70%+ coverage

### Phase 3: Performance Testing (Week 4)
1. Implement benchmark tests for all core operations
2. Add concurrency stress tests
3. Add memory usage tests
4. **Goal**: Establish performance baseline

### Phase 4: Advanced Testing (Weeks 5-6)
1. Add backward compatibility tests
2. Add real-world scenario tests
3. Add security tests (for sandboxed environment)
4. **Goal**: Reach 90%+ coverage

## Success Metrics

### 1. Test Coverage
- **Minimum**: 90% overall coverage
- **Modules**: 100% coverage for core modules
- **Files**: No file with < 80% coverage

### 2. Performance
- **Rendering**: Maintain or improve current performance
- **Compilation**: Maintain or improve current performance
- **Loading**: Maintain or improve current performance
- **Concurrency**: Handle 1000+ concurrent requests

### 3. Stability
- **Test Failures**: Zero in CI/CD pipeline
- **Performance Regression**: < 5% degradation
- **Compatibility**: 100% backward compatibility

### 4. Documentation
- **Test Coverage**: All new tests documented
- **API Changes**: All changes documented
- **Migration Guide**: Clear upgrade path for users

## Monitoring and Maintenance

### Continuous Integration
- All tests run on every commit
- Performance regression monitoring
- Code coverage reporting
- Security scanning

### Release Process
- All tests must pass before release
- Performance benchmarks must be maintained
- Backward compatibility must be preserved
- Documentation must be updated

## Risk Mitigation

### Test Flakiness
- Use deterministic test data
- Mock time-dependent operations
- Clear caches between tests
- Use proper async test fixtures

### Performance Variance
- Run benchmarks multiple times
- Use statistical analysis
- Account for system load
- Set reasonable tolerances

### Compatibility Testing
- Test all Python versions
- Test all import patterns
- Test upgrade scenarios
- Test rollback procedures

## Conclusion

This comprehensive test strategy addresses the current issues with the jinja2-async-environment library while establishing a solid foundation for future growth. By following this roadmap, we can:

1. **Fix current issues** and get all tests passing
2. **Improve coverage** to 90%+ across all modules
3. **Establish performance baselines** with comprehensive benchmarking
4. **Ensure backward compatibility** for existing users
5. **Maintain high quality** through continuous integration and monitoring

The implementation is planned in phases to ensure steady progress without overwhelming the development process, with clear success metrics to track progress and ensure quality.