test_ok1/testing/test_mark.py

from __future__ import absolute_import, division, print_function
import os
import sys

import pytest
from _pytest.mark import (
    MarkGenerator as Mark,
    ParameterSet,
    transfer_markers,
    EMPTY_PARAMETERSET_OPTION,
)

ignore_markinfo = pytest.mark.filterwarnings(
    "ignore:MarkInfo objects:_pytest.deprecated.RemovedInPytest4Warning"
)


class TestMark(object):

    def test_markinfo_repr(self):
        from _pytest.mark import MarkInfo, Mark

        m = MarkInfo.for_mark(Mark("hello", (1, 2), {}))
        repr(m)

    @pytest.mark.parametrize("attr", ["mark", "param"])
    @pytest.mark.parametrize("modulename", ["py.test", "pytest"])
    def test_pytest_exists_in_namespace_all(self, attr, modulename):
        module = sys.modules[modulename]
        assert attr in module.__all__

    def test_pytest_mark_notcallable(self):
        mark = Mark()
        pytest.raises((AttributeError, TypeError), mark)

    def test_mark_with_param(self):

        def some_function(abc):
            pass

        class SomeClass(object):
            pass

        assert pytest.mark.fun(some_function) is some_function
        assert pytest.mark.fun.with_args(some_function) is not some_function

        assert pytest.mark.fun(SomeClass) is SomeClass
        assert pytest.mark.fun.with_args(SomeClass) is not SomeClass

    def test_pytest_mark_name_starts_with_underscore(self):
        mark = Mark()
        pytest.raises(AttributeError, getattr, mark, "_some_name")

    def test_pytest_mark_bare(self):
        mark = Mark()

        def f():
            pass

        mark.hello(f)
        assert f.hello

    @ignore_markinfo
    def test_pytest_mark_keywords(self):
        mark = Mark()

        def f():
            pass

        mark.world(x=3, y=4)(f)
        assert f.world
        assert f.world.kwargs["x"] == 3
        assert f.world.kwargs["y"] == 4

    @ignore_markinfo
    def test_apply_multiple_and_merge(self):
        mark = Mark()

        def f():
            pass

        mark.world
        mark.world(x=3)(f)
        assert f.world.kwargs["x"] == 3
        mark.world(y=4)(f)
        assert f.world.kwargs["x"] == 3
        assert f.world.kwargs["y"] == 4
        mark.world(y=1)(f)
        assert f.world.kwargs["y"] == 1
        assert len(f.world.args) == 0

    @ignore_markinfo
    def test_pytest_mark_positional(self):
        mark = Mark()

        def f():
            pass

        mark.world("hello")(f)
        assert f.world.args[0] == "hello"
        mark.world("world")(f)

    @ignore_markinfo
    def test_pytest_mark_positional_func_and_keyword(self):
        mark = Mark()

        def f():
            raise Exception

        m = mark.world(f, omega="hello")

        def g():
            pass

        assert m(g) == g
        assert g.world.args[0] is f
        assert g.world.kwargs["omega"] == "hello"

    @ignore_markinfo
    def test_pytest_mark_reuse(self):
        mark = Mark()

        def f():
            pass

        w = mark.some
        w("hello", reason="123")(f)
        assert f.some.args[0] == "hello"
        assert f.some.kwargs["reason"] == "123"

        def g():
            pass

        w("world", reason2="456")(g)
        assert g.some.args[0] == "world"
        assert "reason" not in g.some.kwargs
        assert g.some.kwargs["reason2"] == "456"


def test_marked_class_run_twice(testdir, request):
    """Test fails file is run twice that contains marked class.
    See issue#683.
    """
    py_file = testdir.makepyfile(
        """
    import pytest
    @pytest.mark.parametrize('abc', [1, 2, 3])
    class Test1(object):
        def test_1(self, abc):
            assert abc in [1, 2, 3]
    """
    )
    file_name = os.path.basename(py_file.strpath)
    rec = testdir.inline_run(file_name, file_name)
    rec.assertoutcome(passed=6)


def test_ini_markers(testdir):
    testdir.makeini(
        """
        [pytest]
        markers =
            a1: this is a webtest marker
            a2: this is a smoke marker
    """
    )
    testdir.makepyfile(
        """
        def test_markers(pytestconfig):
            markers = pytestconfig.getini("markers")
            print (markers)
            assert len(markers) >= 2
            assert markers[0].startswith("a1:")
            assert markers[1].startswith("a2:")
    """
    )
    rec = testdir.inline_run()
    rec.assertoutcome(passed=1)


def test_markers_option(testdir):
    testdir.makeini(
        """
        [pytest]
        markers =
            a1: this is a webtest marker
            a1some: another marker
            nodescription
    """
    )
    result = testdir.runpytest("--markers")
    result.stdout.fnmatch_lines(
        ["*a1*this is a webtest*", "*a1some*another marker", "*nodescription*"]
    )


def test_ini_markers_whitespace(testdir):
    testdir.makeini(
        """
        [pytest]
        markers =
            a1 : this is a whitespace marker
    """
    )
    testdir.makepyfile(
        """
        import pytest

        @pytest.mark.a1
        def test_markers():
            assert True
    """
    )
    rec = testdir.inline_run("--strict", "-m", "a1")
    rec.assertoutcome(passed=1)


def test_marker_without_description(testdir):
    testdir.makefile(
        ".cfg",
        setup="""
        [tool:pytest]
        markers=slow
    """,
    )
    testdir.makeconftest(
        """
        import pytest
        pytest.mark.xfail('FAIL')
    """
    )
    ftdir = testdir.mkdir("ft1_dummy")
    testdir.tmpdir.join("conftest.py").move(ftdir.join("conftest.py"))
    rec = testdir.runpytest_subprocess("--strict")
    rec.assert_outcomes()


def test_markers_option_with_plugin_in_current_dir(testdir):
    testdir.makeconftest('pytest_plugins = "flip_flop"')
    testdir.makepyfile(
        flip_flop="""\
        def pytest_configure(config):
            config.addinivalue_line("markers", "flip:flop")

        def pytest_generate_tests(metafunc):
            try:
                mark = metafunc.function.flipper
            except AttributeError:
                return
            metafunc.parametrize("x", (10, 20))"""
    )
    testdir.makepyfile(
        """\
        import pytest
        @pytest.mark.flipper
        def test_example(x):
            assert x"""
    )

    result = testdir.runpytest("--markers")
    result.stdout.fnmatch_lines(["*flip*flop*"])


def test_mark_on_pseudo_function(testdir):
    testdir.makepyfile(
        """
        import pytest

        @pytest.mark.r(lambda x: 0/0)
        def test_hello():
            pass
    """
    )
    reprec = testdir.inline_run()
    reprec.assertoutcome(passed=1)


def test_strict_prohibits_unregistered_markers(testdir):
    testdir.makepyfile(
        """
        import pytest
        @pytest.mark.unregisteredmark
        def test_hello():
            pass
    """
    )
    result = testdir.runpytest("--strict")
    assert result.ret != 0
    result.stdout.fnmatch_lines(["*unregisteredmark*not*registered*"])


@pytest.mark.parametrize(
    "spec",
    [
        ("xyz", ("test_one",)),
        ("xyz and xyz2", ()),
        ("xyz2", ("test_two",)),
        ("xyz or xyz2", ("test_one", "test_two")),
    ],
)
def test_mark_option(spec, testdir):
    testdir.makepyfile(
        """
        import pytest
        @pytest.mark.xyz
        def test_one():
            pass
        @pytest.mark.xyz2
        def test_two():
            pass
    """
    )
    opt, passed_result = spec
    rec = testdir.inline_run("-m", opt)
    passed, skipped, fail = rec.listoutcomes()
    passed = [x.nodeid.split("::")[-1] for x in passed]
    assert len(passed) == len(passed_result)
    assert list(passed) == list(passed_result)


@pytest.mark.parametrize(
    "spec", [("interface", ("test_interface",)), ("not interface", ("test_nointer",))]
)
def test_mark_option_custom(spec, testdir):
    testdir.makeconftest(
        """
        import pytest
        def pytest_collection_modifyitems(items):
            for item in items:
                if "interface" in item.nodeid:
                    item.add_marker(pytest.mark.interface)
    """
    )
    testdir.makepyfile(
        """
        def test_interface():
            pass
        def test_nointer():
            pass
    """
    )
    opt, passed_result = spec
    rec = testdir.inline_run("-m", opt)
    passed, skipped, fail = rec.listoutcomes()
    passed = [x.nodeid.split("::")[-1] for x in passed]
    assert len(passed) == len(passed_result)
    assert list(passed) == list(passed_result)


@pytest.mark.parametrize(
    "spec",
    [
        ("interface", ("test_interface",)),
        ("not interface", ("test_nointer", "test_pass")),
        ("pass", ("test_pass",)),
        ("not pass", ("test_interface", "test_nointer")),
    ],
)
def test_keyword_option_custom(spec, testdir):
    testdir.makepyfile(
        """
        def test_interface():
            pass
        def test_nointer():
            pass
        def test_pass():
            pass
    """
    )
    opt, passed_result = spec
    rec = testdir.inline_run("-k", opt)
    passed, skipped, fail = rec.listoutcomes()
    passed = [x.nodeid.split("::")[-1] for x in passed]
    assert len(passed) == len(passed_result)
    assert list(passed) == list(passed_result)


@pytest.mark.parametrize(
    "spec",
    [
        ("None", ("test_func[None]",)),
        ("1.3", ("test_func[1.3]",)),
        ("2-3", ("test_func[2-3]",)),
    ],
)
def test_keyword_option_parametrize(spec, testdir):
    testdir.makepyfile(
        """
        import pytest
        @pytest.mark.parametrize("arg", [None, 1.3, "2-3"])
        def test_func(arg):
            pass
    """
    )
    opt, passed_result = spec
    rec = testdir.inline_run("-k", opt)
    passed, skipped, fail = rec.listoutcomes()
    passed = [x.nodeid.split("::")[-1] for x in passed]
    assert len(passed) == len(passed_result)
    assert list(passed) == list(passed_result)


@pytest.mark.parametrize(
    "spec",
    [
        (
            "foo or import",
            "ERROR: Python keyword 'import' not accepted in expressions passed to '-k'",
        ),
        ("foo or", "ERROR: Wrong expression passed to '-k': foo or"),
    ],
)
def test_keyword_option_wrong_arguments(spec, testdir, capsys):
    testdir.makepyfile(
        """
            def test_func(arg):
                pass
        """
    )
    opt, expected_result = spec
    testdir.inline_run("-k", opt)
    out = capsys.readouterr().err
    assert expected_result in out


def test_parametrized_collected_from_command_line(testdir):
    """Parametrized test not collected if test named specified
       in command line issue#649.
    """
    py_file = testdir.makepyfile(
        """
        import pytest
        @pytest.mark.parametrize("arg", [None, 1.3, "2-3"])
        def test_func(arg):
            pass
    """
    )
    file_name = os.path.basename(py_file.strpath)
    rec = testdir.inline_run(file_name + "::" + "test_func")
    rec.assertoutcome(passed=3)


def test_parametrized_collect_with_wrong_args(testdir):
    """Test collect parametrized func with wrong number of args."""
    py_file = testdir.makepyfile(
        """
        import pytest

        @pytest.mark.parametrize('foo, bar', [(1, 2, 3)])
        def test_func(foo, bar):
            pass
    """
    )

    result = testdir.runpytest(py_file)
    result.stdout.fnmatch_lines(
        [
            'E   ValueError: In "parametrize" the number of values ((1, 2, 3)) '
            "must be equal to the number of names (['foo', 'bar'])"
        ]
    )


def test_parametrized_with_kwargs(testdir):
    """Test collect parametrized func with wrong number of args."""
    py_file = testdir.makepyfile(
        """
        import pytest

        @pytest.fixture(params=[1,2])
        def a(request):
            return request.param

        @pytest.mark.parametrize(argnames='b', argvalues=[1, 2])
        def test_func(a, b):
            pass
    """
    )

    result = testdir.runpytest(py_file)
    assert result.ret == 0


class TestFunctional(object):

    def test_mark_per_function(self, testdir):
        p = testdir.makepyfile(
            """
            import pytest
            @pytest.mark.hello
            def test_hello():
                assert hasattr(test_hello, 'hello')
        """
        )
        result = testdir.runpytest(p)
        result.stdout.fnmatch_lines(["*1 passed*"])

    def test_mark_per_module(self, testdir):
        item = testdir.getitem(
            """
            import pytest
            pytestmark = pytest.mark.hello
            def test_func():
                pass
        """
        )
        keywords = item.keywords
        assert "hello" in keywords

    def test_marklist_per_class(self, testdir):
        item = testdir.getitem(
            """
            import pytest
            class TestClass(object):
                pytestmark = [pytest.mark.hello, pytest.mark.world]
                def test_func(self):
                    assert TestClass.test_func.hello
                    assert TestClass.test_func.world
        """
        )
        keywords = item.keywords
        assert "hello" in keywords

    def test_marklist_per_module(self, testdir):
        item = testdir.getitem(
            """
            import pytest
            pytestmark = [pytest.mark.hello, pytest.mark.world]
            class TestClass(object):
                def test_func(self):
                    assert TestClass.test_func.hello
                    assert TestClass.test_func.world
        """
        )
        keywords = item.keywords
        assert "hello" in keywords
        assert "world" in keywords

    def test_mark_per_class_decorator(self, testdir):
        item = testdir.getitem(
            """
            import pytest
            @pytest.mark.hello
            class TestClass(object):
                def test_func(self):
                    assert TestClass.test_func.hello
        """
        )
        keywords = item.keywords
        assert "hello" in keywords

    def test_mark_per_class_decorator_plus_existing_dec(self, testdir):
        item = testdir.getitem(
            """
            import pytest
            @pytest.mark.hello
            class TestClass(object):
                pytestmark = pytest.mark.world
                def test_func(self):
                    assert TestClass.test_func.hello
                    assert TestClass.test_func.world
        """
        )
        keywords = item.keywords
        assert "hello" in keywords
        assert "world" in keywords

    @ignore_markinfo
    def test_merging_markers(self, testdir):
        p = testdir.makepyfile(
            """
            import pytest
            pytestmark = pytest.mark.hello("pos1", x=1, y=2)
            class TestClass(object):
                # classlevel overrides module level
                pytestmark = pytest.mark.hello(x=3)
                @pytest.mark.hello("pos0", z=4)
                def test_func(self):
                    pass
        """
        )
        items, rec = testdir.inline_genitems(p)
        item, = items
        keywords = item.keywords
        marker = keywords["hello"]
        assert marker.args == ("pos0", "pos1")
        assert marker.kwargs == {"x": 1, "y": 2, "z": 4}

        # test the new __iter__ interface
        values = list(marker)
        assert len(values) == 3
        assert values[0].args == ("pos0",)
        assert values[1].args == ()
        assert values[2].args == ("pos1",)

    def test_merging_markers_deep(self, testdir):
        # issue 199 - propagate markers into nested classes
        p = testdir.makepyfile(
            """
            import pytest
            class TestA(object):
                pytestmark = pytest.mark.a
                def test_b(self):
                    assert True
                class TestC(object):
                    # this one didnt get marked
                    def test_d(self):
                        assert True
        """
        )
        items, rec = testdir.inline_genitems(p)
        for item in items:
            print(item, item.keywords)
            assert [x for x in item.iter_markers() if x.name == "a"]

    def test_mark_decorator_subclass_does_not_propagate_to_base(self, testdir):
        p = testdir.makepyfile(
            """
            import pytest

            @pytest.mark.a
            class Base(object): pass

            @pytest.mark.b
            class Test1(Base):
                def test_foo(self): pass

            class Test2(Base):
                def test_bar(self): pass
        """
        )
        items, rec = testdir.inline_genitems(p)
        self.assert_markers(items, test_foo=("a", "b"), test_bar=("a",))

    @pytest.mark.issue568
    def test_mark_should_not_pass_to_siebling_class(self, testdir):
        p = testdir.makepyfile(
            """
            import pytest

            class TestBase(object):
                def test_foo(self):
                    pass

            @pytest.mark.b
            class TestSub(TestBase):
                pass


            class TestOtherSub(TestBase):
                pass

        """
        )
        items, rec = testdir.inline_genitems(p)
        base_item, sub_item, sub_item_other = items
        print(items, [x.nodeid for x in items])
        # legacy api smears
        assert hasattr(base_item.obj, "b")
        assert hasattr(sub_item_other.obj, "b")
        assert hasattr(sub_item.obj, "b")

        # new api seregates
        assert not list(base_item.iter_markers(name="b"))
        assert not list(sub_item_other.iter_markers(name="b"))
        assert list(sub_item.iter_markers(name="b"))

    def test_mark_decorator_baseclasses_merged(self, testdir):
        p = testdir.makepyfile(
            """
            import pytest

            @pytest.mark.a
            class Base(object): pass

            @pytest.mark.b
            class Base2(Base): pass

            @pytest.mark.c
            class Test1(Base2):
                def test_foo(self): pass

            class Test2(Base2):
                @pytest.mark.d
                def test_bar(self): pass
        """
        )
        items, rec = testdir.inline_genitems(p)
        self.assert_markers(items, test_foo=("a", "b", "c"), test_bar=("a", "b", "d"))

    def test_mark_closest(self, testdir):
        p = testdir.makepyfile(
            """
            import pytest

            @pytest.mark.c(location="class")
            class Test:
                @pytest.mark.c(location="function")
                def test_has_own():
                    pass

                def test_has_inherited():
                    pass

        """
        )
        items, rec = testdir.inline_genitems(p)
        has_own, has_inherited = items
        assert has_own.get_closest_marker("c").kwargs == {"location": "function"}
        assert has_inherited.get_closest_marker("c").kwargs == {"location": "class"}
        assert has_own.get_closest_marker("missing") is None

    def test_mark_with_wrong_marker(self, testdir):
        reprec = testdir.inline_runsource(
            """
                import pytest
                class pytestmark(object):
                    pass
                def test_func():
                    pass
        """
        )
        values = reprec.getfailedcollections()
        assert len(values) == 1
        assert "TypeError" in str(values[0].longrepr)

    def test_mark_dynamically_in_funcarg(self, testdir):
        testdir.makeconftest(
            """
            import pytest
            @pytest.fixture
            def arg(request):
                request.applymarker(pytest.mark.hello)
            def pytest_terminal_summary(terminalreporter):
                values = terminalreporter.stats['passed']
                terminalreporter._tw.line("keyword: %s" % values[0].keywords)
        """
        )
        testdir.makepyfile(
            """
            def test_func(arg):
                pass
        """
        )
        result = testdir.runpytest()
        result.stdout.fnmatch_lines(["keyword: *hello*"])

    @ignore_markinfo
    def test_merging_markers_two_functions(self, testdir):
        p = testdir.makepyfile(
            """
            import pytest
            @pytest.mark.hello("pos1", z=4)
            @pytest.mark.hello("pos0", z=3)
            def test_func():
                pass
        """
        )
        items, rec = testdir.inline_genitems(p)
        item, = items
        keywords = item.keywords
        marker = keywords["hello"]
        values = list(marker)
        assert len(values) == 2
        assert values[0].args == ("pos0",)
        assert values[1].args == ("pos1",)

    def test_no_marker_match_on_unmarked_names(self, testdir):
        p = testdir.makepyfile(
            """
            import pytest
            @pytest.mark.shouldmatch
            def test_marked():
                assert 1

            def test_unmarked():
                assert 1
        """
        )
        reprec = testdir.inline_run("-m", "test_unmarked", p)
        passed, skipped, failed = reprec.listoutcomes()
        assert len(passed) + len(skipped) + len(failed) == 0
        dlist = reprec.getcalls("pytest_deselected")
        deselected_tests = dlist[0].items
        assert len(deselected_tests) == 2

    def test_keywords_at_node_level(self, testdir):
        testdir.makepyfile(
            """
            import pytest
            @pytest.fixture(scope="session", autouse=True)
            def some(request):
                request.keywords["hello"] = 42
                assert "world" not in request.keywords

            @pytest.fixture(scope="function", autouse=True)
            def funcsetup(request):
                assert "world" in request.keywords
                assert "hello" in  request.keywords

            @pytest.mark.world
            def test_function():
                pass
        """
        )
        reprec = testdir.inline_run()
        reprec.assertoutcome(passed=1)

    @ignore_markinfo
    def test_keyword_added_for_session(self, testdir):
        testdir.makeconftest(
            """
            import pytest
            def pytest_collection_modifyitems(session):
                session.add_marker("mark1")
                session.add_marker(pytest.mark.mark2)
                session.add_marker(pytest.mark.mark3)
                pytest.raises(ValueError, lambda:
                        session.add_marker(10))
        """
        )
        testdir.makepyfile(
            """
            def test_some(request):
                assert "mark1" in request.keywords
                assert "mark2" in request.keywords
                assert "mark3" in request.keywords
                assert 10 not in request.keywords
                marker = request.node.get_marker("mark1")
                assert marker.name == "mark1"
                assert marker.args == ()
                assert marker.kwargs == {}
        """
        )
        reprec = testdir.inline_run("-m", "mark1")
        reprec.assertoutcome(passed=1)

    def assert_markers(self, items, **expected):
        """assert that given items have expected marker names applied to them.
        expected should be a dict of (item name -> seq of expected marker names)

        .. note:: this could be moved to ``testdir`` if proven to be useful
        to other modules.
        """
        from _pytest.mark import MarkInfo

        items = {x.name: x for x in items}
        for name, expected_markers in expected.items():
            markers = items[name].keywords._markers
            marker_names = {
                name for (name, v) in markers.items() if isinstance(v, MarkInfo)
            }
            assert marker_names == set(expected_markers)

    @pytest.mark.issue1540
    @pytest.mark.filterwarnings("ignore")
    def test_mark_from_parameters(self, testdir):
        testdir.makepyfile(
            """
            import pytest

            pytestmark = pytest.mark.skipif(True, reason='skip all')

            # skipifs inside fixture params
            params = [pytest.mark.skipif(False, reason='dont skip')('parameter')]


            @pytest.fixture(params=params)
            def parameter(request):
                return request.param


            def test_1(parameter):
                assert True
        """
        )
        reprec = testdir.inline_run()
        reprec.assertoutcome(skipped=1)


class TestKeywordSelection(object):

    def test_select_simple(self, testdir):
        file_test = testdir.makepyfile(
            """
            def test_one():
                assert 0
            class TestClass(object):
                def test_method_one(self):
                    assert 42 == 43
        """
        )

        def check(keyword, name):
            reprec = testdir.inline_run("-s", "-k", keyword, file_test)
            passed, skipped, failed = reprec.listoutcomes()
            assert len(failed) == 1
            assert failed[0].nodeid.split("::")[-1] == name
            assert len(reprec.getcalls("pytest_deselected")) == 1

        for keyword in ["test_one", "est_on"]:
            check(keyword, "test_one")
        check("TestClass and test", "test_method_one")

    @pytest.mark.parametrize(
        "keyword",
        [
            "xxx",
            "xxx and test_2",
            "TestClass",
            "xxx and not test_1",
            "TestClass and test_2",
            "xxx and TestClass and test_2",
        ],
    )
    def test_select_extra_keywords(self, testdir, keyword):
        p = testdir.makepyfile(
            test_select="""
            def test_1():
                pass
            class TestClass(object):
                def test_2(self):
                    pass
        """
        )
        testdir.makepyfile(
            conftest="""
            import pytest
            @pytest.hookimpl(hookwrapper=True)
            def pytest_pycollect_makeitem(name):
                outcome = yield
                if name == "TestClass":
                    item = outcome.get_result()
                    item.extra_keyword_matches.add("xxx")
        """
        )
        reprec = testdir.inline_run(p.dirpath(), "-s", "-k", keyword)
        print("keyword", repr(keyword))
        passed, skipped, failed = reprec.listoutcomes()
        assert len(passed) == 1
        assert passed[0].nodeid.endswith("test_2")
        dlist = reprec.getcalls("pytest_deselected")
        assert len(dlist) == 1
        assert dlist[0].items[0].name == "test_1"

    def test_select_starton(self, testdir):
        threepass = testdir.makepyfile(
            test_threepass="""
            def test_one(): assert 1
            def test_two(): assert 1
            def test_three(): assert 1
        """
        )
        reprec = testdir.inline_run("-k", "test_two:", threepass)
        passed, skipped, failed = reprec.listoutcomes()
        assert len(passed) == 2
        assert not failed
        dlist = reprec.getcalls("pytest_deselected")
        assert len(dlist) == 1
        item = dlist[0].items[0]
        assert item.name == "test_one"

    def test_keyword_extra(self, testdir):
        p = testdir.makepyfile(
            """
           def test_one():
               assert 0
           test_one.mykeyword = True
        """
        )
        reprec = testdir.inline_run("-k", "mykeyword", p)
        passed, skipped, failed = reprec.countoutcomes()
        assert failed == 1

    @pytest.mark.xfail
    def test_keyword_extra_dash(self, testdir):
        p = testdir.makepyfile(
            """
           def test_one():
               assert 0
           test_one.mykeyword = True
        """
        )
        # with argparse the argument to an option cannot
        # start with '-'
        reprec = testdir.inline_run("-k", "-mykeyword", p)
        passed, skipped, failed = reprec.countoutcomes()
        assert passed + skipped + failed == 0

    def test_no_magic_values(self, testdir):
        """Make sure the tests do not match on magic values,
        no double underscored values, like '__dict__',
        and no instance values, like '()'.
        """
        p = testdir.makepyfile(
            """
            def test_one(): assert 1
        """
        )

        def assert_test_is_not_selected(keyword):
            reprec = testdir.inline_run("-k", keyword, p)
            passed, skipped, failed = reprec.countoutcomes()
            dlist = reprec.getcalls("pytest_deselected")
            assert passed + skipped + failed == 0
            deselected_tests = dlist[0].items
            assert len(deselected_tests) == 1

        assert_test_is_not_selected("__")
        assert_test_is_not_selected("()")


@pytest.mark.parametrize(
    "argval, expected",
    [
        (
            pytest.mark.skip()((1, 2)),
            ParameterSet(values=(1, 2), marks=[pytest.mark.skip], id=None),
        ),
        (
            pytest.mark.xfail(pytest.mark.skip()((1, 2))),
            ParameterSet(
                values=(1, 2), marks=[pytest.mark.xfail, pytest.mark.skip], id=None
            ),
        ),
    ],
)
@pytest.mark.filterwarnings("ignore")
def test_parameterset_extractfrom(argval, expected):
    extracted = ParameterSet.extract_from(argval)
    assert extracted == expected


def test_legacy_transfer():

    class FakeModule(object):
        pytestmark = []

    class FakeClass(object):
        pytestmark = pytest.mark.nofun

    @pytest.mark.fun
    def fake_method(self):
        pass

    transfer_markers(fake_method, FakeClass, FakeModule)

    # legacy marks transfer smeared
    assert fake_method.nofun
    assert fake_method.fun
    # pristine marks dont transfer
    assert fake_method.pytestmark == [pytest.mark.fun.mark]


class TestMarkDecorator(object):

    @pytest.mark.parametrize(
        "lhs, rhs, expected",
        [
            (pytest.mark.foo(), pytest.mark.foo(), True),
            (pytest.mark.foo(), pytest.mark.bar(), False),
            (pytest.mark.foo(), "bar", False),
            ("foo", pytest.mark.bar(), False),
        ],
    )
    def test__eq__(self, lhs, rhs, expected):
        assert (lhs == rhs) == expected


@pytest.mark.parametrize("mark", [None, "", "skip", "xfail"])
def test_parameterset_for_parametrize_marks(testdir, mark):
    if mark is not None:
        testdir.makeini("[pytest]\n{}={}".format(EMPTY_PARAMETERSET_OPTION, mark))

    config = testdir.parseconfig()
    from _pytest.mark import pytest_configure, get_empty_parameterset_mark

    pytest_configure(config)
    result_mark = get_empty_parameterset_mark(config, ["a"], all)
    if mark in (None, ""):
        # normalize to the requested name
        mark = "skip"
    assert result_mark.name == mark
    assert result_mark.kwargs["reason"].startswith("got empty parameter set ")
    if mark == "xfail":
        assert result_mark.kwargs.get("run") is False


def test_parameterset_for_parametrize_bad_markname(testdir):
    with pytest.raises(pytest.UsageError):
        test_parameterset_for_parametrize_marks(testdir, "bad")


def test_mark_expressions_no_smear(testdir):
    testdir.makepyfile(
        """
        import pytest

        class BaseTests(object):
            def test_something(self):
                pass

        @pytest.mark.FOO
        class TestFooClass(BaseTests):
            pass

        @pytest.mark.BAR
        class TestBarClass(BaseTests):
            pass
    """
    )

    reprec = testdir.inline_run("-m", "FOO")
    passed, skipped, failed = reprec.countoutcomes()
    dlist = reprec.getcalls("pytest_deselected")
    assert passed == 1
    assert skipped == failed == 0
    deselected_tests = dlist[0].items
    assert len(deselected_tests) == 1

    # keywords smear - expected behaviour
    reprec_keywords = testdir.inline_run("-k", "FOO")
    passed_k, skipped_k, failed_k = reprec_keywords.countoutcomes()
    assert passed_k == 2
    assert skipped_k == failed_k == 0