Generate comprehensive tests for code.
Capabilities
- Generate unit tests for functions and classes
- Create integration tests for APIs and services
- Build test fixtures and mocks
- Cover edge cases and error conditions
Test Structure
import pytest
class TestClassName:
"""Tests for ClassName."""
def test_method_success(self):
"""Test method with valid input."""
result = function_under_test(valid_input)
assert result == expected_output
def test_method_edge_case(self):
"""Test method with edge case."""
result = function_under_test(edge_case_input)
assert result == edge_case_output
def test_method_error(self):
"""Test method raises error on invalid input."""
with pytest.raises(ValueError):
function_under_test(invalid_input)
## Coverage Targets
| Type | Target |
|------|--------|
| Unit tests | 80%+ line coverage |
| Branch coverage | 70%+ |
| Critical paths | 100% |
## Test Categories
1. **Happy path** - Normal expected usage
2. **Edge cases** - Boundary values, empty inputs
3. **Error cases** - Invalid inputs, exceptions
4. **Integration** - Component interactions
## Fixtures Example
```python
@pytest.fixture
def sample_user():
return User(name="Test User", email="test@example.com")
@pytest.fixture
def mock_database(mocker):
return mocker.patch("app.db.connection")