app.py

def greater_than_5(x):
    return x > 5

test_app.py

from app import greater_than_5


def test_5():
    assert not greater_than_5(5)


def test_3():
    assert not greater_than_5(3)


def test_11():
    assert greater_than_5(11)


def test_30():
    assert not greater_than_5(1)