Function test_when_first

tests/feature/test_steps.py:180–217

(pytester)

def test_when_first(pytester):
    pytester.makefile(
        ".feature",
        steps=textwrap.dedent(
            """\
            Feature: Steps are executed one by one
                Steps are executed one by one. Given and When sections
                are not mandatory in some cases.

                Scenario: When step can be the first
                    When I do nothing
                    Then I make no mistakes
            """
        ),
    )
    pytester.makepyfile(
        textwrap.dedent(
            """\
        from pytest_bdd import when, then, scenario

        @scenario("steps.feature", "When step can be the first")
        def test_steps():
            pass

        @when("I do nothing")
        def _():
            pass


        @then("I make no mistakes")
        def _():
            assert True

        """
        )
    )
    result = pytester.runpytest()
    result.assert_outcomes(passed=1, failed=0)


def test_then_after_given(pytester):