Multi assert in pytest

Question

I have set of many cases that I want to test on a single function.

Let's say:

@pytest.mark.unittest
def test_simple_test_id_odd():
    numbers = [1, 2, 3, 4, 5, 6, 7, 8]

    for number in numbers:
        assert number % 2 == 0

When I run this it stops on the first number with the error. I want the test to go all over the numbers and check each one of them.

I don't want to write a test for each number, it does not make sense, it's too long.

How can I test all the numbers and raise error for every one of them that failed?

Write a *parameterised* test: https://docs.pytest.org/en/stable/parametrize.html — jonrsharpe, Dec 13 '20 at 13:07

score 2 · Accepted Answer · edited Dec 13 '20 at 13:16

2

In this scenario I would prefer to use pytest.mark.parametrize:

import pytest


@pytest.mark.parametrize("number", [1, 2, 3, 4, 5, 6, 7, 8])
def test_simple_test_id_odd(number):
    assert number % 2 != 0

edited Dec 13 '20 at 13:16

jonrsharpe

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answered Dec 13 '20 at 13:13

Robert Seaman

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Multi assert in pytest

1 Answers1