
def test_x1_is_exists(api):
    assert hasattr(api, 'x1')


def test_x2_is_exists(api):
    assert hasattr(api, 'x2')


def test_x3_is_exists(api):
    assert hasattr(api, 'x3')


def test_x4_is_exists(api):
    assert hasattr(api, 'x4')


def test_x5_is_exists(api):
    assert hasattr(api, 'x5')


def test_x6_is_exists(api):
    assert hasattr(api, 'x6')


def test_x7_is_exists(api):
    assert hasattr(api, 'x7')


def test_x8_is_exists(api):
    assert hasattr(api, 'x8')


def test_x9_is_exists(api):
    assert hasattr(api, 'x9')


def test_x10_is_exists(api):
    assert hasattr(api, 'x10')


def test_x11_is_not_exists(api):
    assert not hasattr(api, 'x11')
