Test Generation

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

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

@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")