community.general/test/integration/roles/test_mysql_user/tasks/assert_user.yml

# test code to assert mysql user 
# (c) 2014,  Wayne Rosario <wrosario@ansible.com>

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# ============================================================
- name: run command to query for mysql user 
  command: mysql "-e SELECT User FROM mysql.user where user='{{ user_name }}';"
  register: result

- name: assert mysql user is present 
  assert: { that: "'{{ user_name }}' in result.stdout" }

- name: run command to show privileges for user (expect privileges in stdout)
  command: mysql "-e SHOW GRANTS FOR '{{ user_name }}'@'localhost';"
  register: result
  when: priv is defined

- name: assert user has giving privileges 
  assert: { that: "'GRANT {{priv}} ON *.*' in result.stdout" }
  when: priv is defined