community.mysql/tests/integration/targets/test_mysql_user/tasks/test_charset.yml

- vars:
    mysql_parameters: &mysql_params
      login_user: '{{ mysql_user }}'
      login_password: '{{ mysql_password }}'
      login_host: 127.0.0.1
      login_port: '{{ mysql_primary_port }}'

  block:

    #- name: Change database charset
    #  mysql_query:
    #    <<: *mysql_params
    #    query: ALTER DATABASE mysql CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci

    #- name: Change user table charset
    #  mysql_query:
    #    <<: *mysql_params
    #    query: ALTER TABLE mysql.user CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci

    - name: Show charset settings
      mysql_query:
        <<: *mysql_params
        query: "SHOW SESSION VARIABLES LIKE 'character_set_%'"
      register: result
    - assert:
        that:
        - result is succeeded

    - name: Show collation settings
      mysql_query:
        <<: *mysql_params
        query: "SHOW SESSION VARIABLES LIKE 'collation_connection%'"
      register: result
    - assert:
        that:
        - result is succeeded

    - name: Show charset settings
      mysql_query:
        <<: *mysql_params
        query: "SELECT @@character_set_client"
      register: result
    - assert:
        that:
        - result is succeeded

    - name: Create user with default charset
      mysql_user:
        <<: *mysql_params
        name: '{{ user_name_5 }}'
        password: '{{ user_password_5 }}'
        priv: '*.*:SELECT'
        state: present

    - name: Create user with default charset again
      mysql_user:
        <<: *mysql_params
        name: '{{ user_name_5 }}'
        password: '{{ user_password_5 }}'
        state: present
        priv: '*.*:SELECT'
      register: result

    - assert:
        that: result is not changed

    - name: Try to get connect and get info, must fail
      mysql_query:
        login_host: 127.0.0.1
        login_port: '{{ mysql_primary_port }}'
        login_user: '{{ user_name_5 }}'
        login_password: '{{ user_password_5 }}'
        query: 'SHOW DATABASES'
      register: result
      ignore_errors: yes

    - name: Assert that the previous task failed
      assert:
        that:
        - result is failed

    - name: Drop user
      mysql_user:
        <<: *mysql_params
        name: '{{ user_name_5 }}'
        password: '{{ user_password_5 }}'
        state: absent

    - name: Create user with utf8mb4 charset
      mysql_user:
        <<: *mysql_params
        name: '{{ user_name_5 }}'
        password: '{{ user_password_5 }}'
        state: present
        priv: '*.*:SELECT'
        charset: utf8mb4

    - name: Try to connect and get info, must succeed
      mysql_query:
        login_host: 127.0.0.1
        login_port: '{{ mysql_primary_port }}'
        login_user: '{{ user_name_5 }}'
        login_password: '{{ user_password_5 }}'
        query: 'SHOW DATABASES'
        charset: utf8mb4
      register: result

    - name: Assert that the previous task failed
      assert:
        that:
        - result is succeeded