PhpUnit tests fails for the tests in commerce_recurring

Hello,

I'm trying to write my own tests based on the tests in commerce_recurring folder.

The tests in the recurring folder fail.

For example, SubscriptionLifecycleTest.php throws the following error:

1) Drupal\Tests\commerce_recurring\Kernel\SubscriptionLifecycleTest::testLifecycle
Drupal\Core\Config\Schema\SchemaIncompleteException: Schema error for commerce_recurring.commerce_billing_schedule.test_id with the following errors: commerce_recurring.commerce_billing_schedule.test_id:trialRenewalEmailDetails missing schema, commerce_recurring.commerce_billing_schedule.test_id:expiryEmailDetails missing schema

The billing_schedule is created in RecurringKernetTestBase at the test runtime.

Regards
Mock