pytest-gen

# Pytest Generation Skill When generating tests, follow this structure. ## Test Organization - Group tests by function under test - Use `@pytest.mark.parametrize` for multiple inputs - Use fixtures for shared setup - Follow arrange/act/assert pattern ## Coverage Requirements - Happy path (expected usage) - Edge cases (empty strings, None, boundary values) - Error cases (invalid input, file not found, wrong types) - Integration (functions working together) ## Template ```python import pytest from module_under_test import function_to_test @pytest.fixture def sample_data(): """Provide shared test data.""" return {"key": "value"} class TestFunctionName: """Tests for function_name.""" def test_happy_path(self, sample_data): result = function_to_test(valid_input) assert result == expected_output def test_empty_input(self): result = function_to_test("") assert result == expected_for_empty @pytest.mark.parametrize("input_val,expected", [ ("valid", True), ("", False), (None, False), ]) def test_various_inputs(self, input_val, expected): assert function_to_test(input_val) == expected ```