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from typing import TYPE_CHECKING, Any, Callable, Optional
import pytest
pytest_plugins = "pytester"
if TYPE_CHECKING:
from _pytest.pytester import Pytester
# RunResult is not available in type stubs, use Any as return type
RunResult = Any
@pytest.fixture
def run_example_test(pytester: "Pytester") -> Callable[..., "RunResult"]:
"""
Fixture that returns a helper function to run tests from examples directory.
Usage:
def test_something(run_example_test):
result = run_example_test("test_example_simple.py")
result.assert_outcomes(passed=1)
Args:
pytester: The pytester fixture (injected by pytest)
Returns:
A function that takes (example_name, test_filter=None, *pytest_args) and returns RunResult
"""
def _run_example_test(
example_name: str,
test_filter: Optional[str] = None,
*pytest_args: str,
) -> "RunResult":
"""
Helper function to run tests from examples directory.
Args:
example_name: Name of the example file (e.g., "test_example_simple.py")
test_filter: Optional test filter for -k option
*pytest_args: Additional pytest arguments
Returns:
RunResult from pytest execution
"""
pytester.copy_example(f"examples/{example_name}")
args = list(pytest_args)
if test_filter:
args.extend(["-k", test_filter])
return pytester.runpytest(*args)
return _run_example_test
|
