Function test_steps_with_yield

tests/feature/test_steps.py:577–622

Test that steps definition containing a yield statement work the same way as pytest fixture do, that is the code after the yield is executed during teardown.

(pytester)

def test_steps_with_yield(pytester):
    """Test that steps definition containing a yield statement work the same way as
    pytest fixture do, that is the code after the yield is executed during teardown."""

    pytester.makefile(
        ".feature",
        a="""\
Feature: A feature

    Scenario: A scenario
        When I setup stuff
        Then stuff should be 42
""",
    )
    pytester.makepyfile(
        textwrap.dedent(
            """\
        import pytest
        from pytest_bdd import given, when, then, scenarios

        scenarios("a.feature")

        @when("I setup stuff", target_fixture="stuff")
        def _():
            print("Setting up...")
            yield 42
            print("Tearing down...")


        @then("stuff should be 42")
        def _(stuff):
            assert stuff == 42
            print("Asserted stuff is 42")

        """
        )
    )
    result = pytester.runpytest("-s")
    result.assert_outcomes(passed=1)
    result.stdout.fnmatch_lines(
        [
            "*Setting up...*",
            "*Asserted stuff is 42*",
            "*Tearing down...*",
        ]
    )


def test_lower_case_and(pytester):