Login test fails

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.

Some help would be appreciated.

Solved the problem by adding

'components' => [

        'request' => [

            'cookieValidationKey' => 'XXXXXXXXX',


to main-local.php under ‘common/config’.

Good thinking :)