What are the differences between pytest fixtures and setup/teardown methods?

What are the differences between pytest fixtures and setup/teardown methods?

Pytest fixtures are a way to set up test dependencies and state, while setup/teardown methods are part of unittest framework. Fixtures are more flexible and can be reused across tests.

Can you give me an example of how to use a fixture?

Sure! You can define a fixture using the @pytest.fixture decorator. For example:

import pytest

def sample_fixture():
    return 'Hello, World!'

def test_example(sample_fixture):
    assert sample_fixture == 'Hello, World!'

How do setup and teardown methods look in unittest?

In unittest, you would define setup and teardown methods like this:

import unittest

class TestExample(unittest.TestCase):
    def setUp(self):
        self.value = 'Hello, World!'

    def tearDown(self):
        pass

    def test_example(self):
        self.assertEqual(self.value, 'Hello, World!')

Which one is better for larger projects?

For larger projects, pytest fixtures are generally preferred due to their modularity and reusability, making tests easier to manage.