When using the KernelTestCase and asking PhpStan to analyze a test, I have this error:

image

However, the static::$container that is in the KernelTestCase is supposed to be an instance of the TestContainer but is typed as ContainerInterface because it might happen that the test.container service can be absent from the container, therefore making static::$container be the full container (as of KernelTestCase here )

Here is the code that triggers the error: Pierstoval/AgateApps/.../RedeemerTest.php#L61-L79

If the test.container service exists in the container AND for this specific case, I think there shouldn't be any error.