@pytest.fixture(scope="session")
def foo_fixture():
    data = get_data()
    if not data:
        pytest.fail('ERROR: Could not get data', pytrace=False)

def test_foo(foo_fixture):
    assert something, pytest.fail('ERROR: ...', pytrace=False)

def test_bar(foo_fixture):
    assert something, pytest.fail('ERROR: ...', pytrace=False)

____________________________________________________________________ ERROR at setup of test_foo ____________________________________________________________________
ERROR: Could not get data
____________________________________________________________________ ERROR at setup of test_bar____________________________________________________________________
ERROR: Could not get data