pytest2/testing/python/setup_only.py

import pytest


@pytest.fixture(params=['--setup-only', '--setup-plan', '--setup-show'],
                scope='module')
def mode(request):
    return request.param


def test_show_only_active_fixtures(testdir, mode):
    p = testdir.makepyfile('''
        import pytest
        @pytest.fixture
        def _arg0():
            """hidden arg0 fixture"""
        @pytest.fixture
        def arg1():
            """arg1 docstring"""
        def test_arg1(arg1):
            pass
    ''')

    result = testdir.runpytest(mode, p)
    assert result.ret == 0

    result.stdout.fnmatch_lines([
        '*SETUP    F arg1*',
        '*test_arg1 (fixtures used: arg1)*',
        '*TEARDOWN F arg1*',
    ])
    assert "_arg0" not in result.stdout.str()


def test_show_different_scopes(testdir, mode):
    p = testdir.makepyfile('''
        import pytest
        @pytest.fixture
        def arg_function():
            """function scoped fixture"""
        @pytest.fixture(scope='session')
        def arg_session():
            """session scoped fixture"""
        def test_arg1(arg_session, arg_function):
            pass
    ''')

    result = testdir.runpytest(mode, p)
    assert result.ret == 0

    result.stdout.fnmatch_lines([
        'SETUP    S arg_session*',
        '*SETUP    F arg_function*',
        '*test_arg1 (fixtures used: arg_function, arg_session)*',
        '*TEARDOWN F arg_function*',
        'TEARDOWN S arg_session*',
    ])


def test_show_nested_fixtures(testdir, mode):
    testdir.makeconftest('''
        import pytest
        @pytest.fixture(scope='session')
        def arg_same():
            """session scoped fixture"""
        ''')
    p = testdir.makepyfile('''
        import pytest
        @pytest.fixture(scope='function')
        def arg_same(arg_same):
            """function scoped fixture"""
        def test_arg1(arg_same):
            pass
    ''')

    result = testdir.runpytest(mode, p)
    assert result.ret == 0

    result.stdout.fnmatch_lines([
        'SETUP    S arg_same*',
        '*SETUP    F arg_same (fixtures used: arg_same)*',
        '*test_arg1 (fixtures used: arg_same)*',
        '*TEARDOWN F arg_same*',
        'TEARDOWN S arg_same*',
    ])


def test_show_fixtures_with_autouse(testdir, mode):
    p = testdir.makepyfile('''
        import pytest
        @pytest.fixture
        def arg_function():
            """function scoped fixture"""
        @pytest.fixture(scope='session', autouse=True)
        def arg_session():
            """session scoped fixture"""
        def test_arg1(arg_function):
            pass
    ''')

    result = testdir.runpytest(mode, p)
    assert result.ret == 0

    result.stdout.fnmatch_lines([
        'SETUP    S arg_session*',
        '*SETUP    F arg_function*',
        '*test_arg1 (fixtures used: arg_function, arg_session)*',
    ])


def test_show_fixtures_with_parameters(testdir, mode):
    testdir.makeconftest('''
        import pytest
        @pytest.fixture(scope='session', params=['foo', 'bar'])
        def arg_same():
            """session scoped fixture"""
        ''')
    p = testdir.makepyfile('''
        import pytest
        @pytest.fixture(scope='function')
        def arg_other(arg_same):
            """function scoped fixture"""
        def test_arg1(arg_other):
            pass
    ''')

    result = testdir.runpytest(mode, p)
    assert result.ret == 0

    result.stdout.fnmatch_lines([
        'SETUP    S arg_same?foo?',
        'TEARDOWN S arg_same?foo?',
        'SETUP    S arg_same?bar?',
        'TEARDOWN S arg_same?bar?',
    ])


def test_show_fixtures_with_parameter_ids(testdir, mode):
    testdir.makeconftest('''
        import pytest
        @pytest.fixture(
            scope='session', params=['foo', 'bar'], ids=['spam', 'ham'])
        def arg_same():
            """session scoped fixture"""
        ''')
    p = testdir.makepyfile('''
        import pytest
        @pytest.fixture(scope='function')
        def arg_other(arg_same):
            """function scoped fixture"""
        def test_arg1(arg_other):
            pass
    ''')

    result = testdir.runpytest(mode, p)
    assert result.ret == 0

    result.stdout.fnmatch_lines([
        'SETUP    S arg_same?spam?',
        'SETUP    S arg_same?ham?',
    ])


def test_show_fixtures_with_parameter_ids_function(testdir, mode):
    p = testdir.makepyfile('''
        import pytest
        @pytest.fixture(params=['foo', 'bar'], ids=lambda p: p.upper())
        def foobar():
            pass
        def test_foobar(foobar):
            pass
    ''')

    result = testdir.runpytest(mode, p)
    assert result.ret == 0

    result.stdout.fnmatch_lines([
        '*SETUP    F foobar?FOO?',
        '*SETUP    F foobar?BAR?',
    ])


def test_dynamic_fixture_request(testdir):
    p = testdir.makepyfile('''
        import pytest
        @pytest.fixture()
        def dynamically_requested_fixture():
            pass
        @pytest.fixture()
        def dependent_fixture(request):
            request.getfuncargvalue('dynamically_requested_fixture')
        def test_dyn(dependent_fixture):
            pass
    ''')

    result = testdir.runpytest('--setup-only', p)
    assert result.ret == 0

    result.stdout.fnmatch_lines([
        '*SETUP    F dynamically_requested_fixture',
        '*TEARDOWN F dynamically_requested_fixture'
    ])


def test_capturing(testdir):
    p = testdir.makepyfile('''
        import pytest, sys
        @pytest.fixture()
        def one():
            sys.stdout.write('this should be captured')
            sys.stderr.write('this should also be captured')
        @pytest.fixture()
        def two(one):
            assert 0
        def test_capturing(two):
            pass
    ''')

    result = testdir.runpytest('--setup-only', p)
    result.stdout.fnmatch_lines([
        'this should be captured',
        'this should also be captured'
    ])


def test_show_fixtures_and_execute_test(testdir):
    """ Verifies that setups are shown and tests are executed. """
    p = testdir.makepyfile('''
        import pytest
        @pytest.fixture
        def arg():
            assert True
        def test_arg(arg):
            assert False
    ''')

    result = testdir.runpytest("--setup-show", p)
    assert result.ret == 1

    result.stdout.fnmatch_lines([
        '*SETUP    F arg*',
        '*test_arg (fixtures used: arg)F',
        '*TEARDOWN F arg*',
    ])