How to fix Yii2 (codeception, postgresql) testing error?

Question

PostgreSQL

Good afternoon!
Postgresql 9.5 database installed.
I'm starting to understand Codeception, when I run the test: I get
codecept run
an error:

[PDOException]
SQLSTATE[42501]: Insufficient privilege: 7 ERROR: permission denied: "RI_ConstraintTrigger_a_67472" is a system trigger

Searched similar problems in Google, but nothing helped. I also disabled triggers with the command:
ALTER TABLE "tablename" DISABLE TRIGGER ALL;
No result.

Answer 1

yiiframework.ru/forum/viewtopic.php?t=7768
there is a solution for yii1 but the meaning is the same... it's the fixture loaders that provoke.
if you don't use fixtures then just inherit from TestCase and not DbTestCase
or override checkIntegrity methods from yii\test\InitDbFixture