Pytest fixture not found

by

pytest fixture not found

When running tests using pytest, the error message “fixture not found” usually occurs when a fixture specified in a test function or test class is not defined in any of the fixtures files or modules.

Fixtures in pytest are functions that can be used to set up preconditions and provide necessary data for the tests. They are defined in fixture files or modules and can be used in test functions or test classes by simply specifying their names as arguments. Here’s an example:

    
        # fixtures.py
        
        import pytest
        
        @pytest.fixture
        def my_fixture():
            # ... implement fixture setup here ...
            yield
            # ... implement fixture teardown here ...
        
        # test_example.py
        
        def test_example(my_fixture):
            # ... implement test code here ...
            assert 1 + 1 == 2

In the above example, we define a fixture named “my_fixture” in the fixtures.py file. The fixture sets up some preconditions before the test code and performs any necessary teardown after the test. In the test_example.py file, we use the fixture by specifying it as an argument to the test function “test_example”.

If you encounter the “fixture not found” error, make sure to check the following:

  1. Verify that the fixture is defined in one of the fixture files or modules.
  2. Ensure that the fixture name used in the test function or test class matches exactly with the fixture name defined.
  3. Check for any typos or naming inconsistencies in the fixture name.
  4. Make sure that the fixture file or module is imported correctly in the test file where the fixture is used.

By following these steps and ensuring that the fixture is defined and used correctly, you should be able to resolve the “fixture not found” error in pytest.

Leave a comment