Tips/discussion

The following are some short topics and tips that did not fit into the previous sections, but that I think are worth mentioning.

When to use fixtures, as opposed to simple functions

Sometimes, all you need is to construct a simple object for your tests, and arguably this can be done in a plain function, not necessarily needing to be implemented as a fixture. Suppose we have a WindowManager class, that does not receive any parameters:

class WindowManager:
    ...

One way to use it in our tests would be to write a fixture:

@pytest.fixture
def manager():
    return WindowManager()

def test_windows_creation(manager):
    window = manager.new_help_window("pipes_help.rst")
    assert window.title() == &quot...