Pytest failing test separated

Instead of putting the two asserts in the same test function we could also put them in separate onese like in this example.

import mymath

def test_add():
    assert mymath.add(2, 2) == 4

def test_again():
    assert mymath.add(2, 3) == 5

The result of running this test file shows that it collected 2 items as there were two test functions.

Then next to the test file we see a dot indicating the successful test case and an F indicating the failed test. The more detailed test report helps.

At the bottom of the report you can also see that now it indicates 1 failed and 1 passed test.

============================= test session starts ==============================
platform linux -- Python 3.8.6, pytest-6.1.2, py-1.9.0, pluggy-0.13.1
rootdir: /home/gabor/work/slides/python/examples/pytest/math
plugins: flake8-1.0.6, dash-1.17.0
collected 2 items

test_mymath_more_separate.py .F                                          [100%]

=================================== FAILURES ===================================
__________________________________ test_again __________________________________

    def test_again():
>       assert mymath.add(2, 3) == 5
E       assert 6 == 5
E        +  where 6 = <function add at 0x7f4bfffa2c10>(2, 3)
E        +    where <function add at 0x7f4bfffa2c10> = mymath.add

test_mymath_more_separate.py:8: AssertionError
=========================== short test summary info ============================
FAILED test_mymath_more_separate.py::test_again - assert 6 == 5
========================= 1 failed, 1 passed in 0.03s ==========================