Fix role integration tests for mariadb (#291)

* Fix: test_mysql_role : Check that the user have no active roles assertion

* Fix: test_mysql_role : Check in DB assertion

* Fix: test_mysql_role : Check in DB, if not granted, the query will fail for mariadb

* Fix: test_mysql_role : Check that the role is active assertion

* test_mysql_role : create checks for mariadb

* Make 'when' conditions uniform

* Fix: test_mysql_role : admin option tests

* test_mysql_role : create checks for mariadb

* Fix: add fixme on test which create role in check mode 'again'

It changes only on mariadb 10.2
(doesn't change on mysql 8 or mariadb 10.5)

* Fix: add fixme on test which create role 'again'

* Simplify test without checking Host part

* Fix 'show grant' checks for mariadb

* Enable mariadb tests for test_mysql_role target

* Add tests to verify role grants for roles

* Add FIXME comments for tests which do not pass on mariadb 10.2

* Fix FIXME tests related to mariadb 10.2

* Exclude mysqlclient==2.0.1 with mariadb from integration tests

.github/workflows/ansible-test-plugins.yml

@@ -78,6 +78,10 @@ jobs:
             connector: pymysql==0.7.10
           - db_engine_version: mariadb_10.5.9
             connector: pymysql==0.7.10
+          - db_engine_version: mariadb_10.3.34
+            connector: mysqlclient==2.0.1
+          - db_engine_version: mariadb_10.5.9
+            connector: mysqlclient==2.0.1
           - python: 3.8
             ansible: stable-2.9
           - python: 3.8