Update the environtment variable

[ianrussel]

HI, I have a scenario to test failing auth by updating the variable set in pytest.ini

      env = 
            API_TOKEN=1234correct

In some class

      load_env()
      TOKEN = os.getenv('API_TOKEN')

Now in test I would like to modify its value so the authentication will fail

test_auth.py
   
   def test_it(monkeypatch):
        os.unsetenv("API_TOKEN")
        print(os.getenv('API_TOKEN')) // its still there
        monkeypatch.setenv("API_TOKEN", 1234wrong)

[gaborbernat]

Monkey patch.delenv is what you're looking for