131 lines
3.7 KiB
Python
131 lines
3.7 KiB
Python
"""Scenario Outline with empty example values tests."""
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import textwrap
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from pytest_bdd.utils import collect_dumped_objects
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def test_scenario_with_empty_example_values(pytester):
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pytester.makefile(
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".feature",
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outline=textwrap.dedent(
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"""\
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Feature: Outline
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Scenario Outline: Outlined with empty example values
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Given there are <start> cucumbers
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When I eat <eat> cucumbers
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Then I should have <left> cucumbers
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Examples:
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| start | eat | left |
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| # | | |
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"""
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),
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)
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pytester.makeconftest(
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textwrap.dedent(
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"""\
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from pytest_bdd import given, when, then, parsers
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from pytest_bdd.utils import dump_obj
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# Using `parsers.re` so that we can match empty values
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@given(parsers.re("there are (?P<start>.*?) cucumbers"))
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def _(start):
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dump_obj(start)
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@when(parsers.re("I eat (?P<eat>.*?) cucumbers"))
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def _(eat):
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dump_obj(eat)
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@then(parsers.re("I should have (?P<left>.*?) cucumbers"))
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def _(left):
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dump_obj(left)
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"""
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)
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)
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pytester.makepyfile(
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textwrap.dedent(
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"""\
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from pytest_bdd import scenario
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@scenario("outline.feature", "Outlined with empty example values")
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def test_outline():
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pass
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"""
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)
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)
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result = pytester.runpytest("-s")
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result.assert_outcomes(passed=1)
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assert collect_dumped_objects(result) == ["#", "", ""]
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def test_scenario_with_empty_example_values_none_transformer(pytester):
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"""
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Checks that `parsers.re` can transform empty values to None with a converter.
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`parsers.parse` and `parsers.cfparse` won't work out of the box this way as they will fail to match the steps.
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"""
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pytester.makefile(
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".feature",
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outline=textwrap.dedent(
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"""\
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Feature: Outline
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Scenario Outline: Outlined with empty example values and transformer
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Given there are <start> cucumbers
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When I eat <eat> cucumbers
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Then I should have <left> cucumbers
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Examples:
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| start | eat | left |
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| # | | |
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"""
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),
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)
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pytester.makeconftest(
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textwrap.dedent(
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"""\
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from pytest_bdd import given, when, then, parsers
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from pytest_bdd.utils import dump_obj
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def empty_to_none(value):
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return None if value.strip() == "" else value
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@given(parsers.re("there are (?P<start>.*?) cucumbers"), converters={"start": empty_to_none})
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def _(start):
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dump_obj(start)
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@when(parsers.re("I eat (?P<eat>.*?) cucumbers"), converters={"eat": empty_to_none})
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def _(eat):
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dump_obj(eat)
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@then(parsers.re("I should have (?P<left>.*?) cucumbers"), converters={"left": empty_to_none})
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def _(left):
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dump_obj(left)
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"""
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)
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)
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pytester.makepyfile(
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textwrap.dedent(
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"""\
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from pytest_bdd import scenario
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@scenario("outline.feature", "Outlined with empty example values and transformer")
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def test_outline():
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pass
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"""
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)
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)
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result = pytester.runpytest("-s")
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result.assert_outcomes(passed=1)
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assert collect_dumped_objects(result) == ["#", None, None]
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