Tests avec Pytest

Readme.md

Tests avec Pytest

Installer Pytest

pip install pytest

Exécuter les tests

pytest -rfE tests.py

mon_module.py

from random import randint


def hello_world():
    return "Hello world !"

def increment(value):
    return increment + 1

def random_int():
    return randint(0, 100)

def is_even():
    value = random_int()
    if value % 2 == 0:
        return True
    else:
        return False

tests.py

from unittest.mock import MagicMock
import pytest


@pytest.fixture
def two():
    return 2

@pytest.fixture
def random_int_mock(monkeypatch):
    random_int_mock = MagicMock()
    monkeypatch.setattr('mon_module.random_int', random_int_mock)
    return random_int_mock

def test_when_hello_world_then_return_expected_message():
    expected = "Hello world !"

    result = hello_world()

    assert result == expected

def test_given_value_when_increment_then_return_incremented_value(two):
    expected = 3

    result = increment(two)

    assert result == expected

def test_given_even_value_from_random_int_when_is_even_then_return_true(random_int_mock):
    random_int_mock.return_value = 2

    result = is_even()

    assert result is True

def test_given_odd_value_from_random_int_when_is_even_then_return_true(random_int_mock):
    random_int_mock.return_value = 3

    result = is_even()

    assert result is False