I’m a little confused by this one. The out of box unit test LoginFormTest fails after updating Yii2. The test that fails is “Login Correct”. This is the error that I get:
[yii\base\InvalidConfigException] yii\web\Request::cookieValidationKey must be configured with a secret key.
Secret is configured in both fronted and backend. Login works just fine on my actual site. Not sure why the test fails now.