mysql_query: fix failing when single-row query contains commas (#53)

* mysql_query: fix failing when single-row query contains commas

* add changelog fragment

* Improve documentation and tests

* Fix typo

* Improve test coverage

* Fix

* Remove the irrelevant note

* change suggested

tests/integration/targets/test_mysql_query/tasks/mysql_query_initial.yml

@@ -238,6 +238,57 @@
       that:
       - result.rowcount == [0]
 
+  - name: Create {{ test_table3 }}
+    mysql_query:
+      <<: *mysql_params
+      login_db: '{{ test_db }}'
+      query: 'CREATE TABLE {{ test_table3 }} (id int, story text)'
+
+  - name: Add data to {{ test_table3 }}
+    mysql_query:
+      <<: *mysql_params
+      login_db: '{{ test_db }}'
+      query: "INSERT INTO {{ test_table3 }} (id, story) VALUES (1, 'first'), (2, 'second')"
+
+  - name: Select from {{ test_table3 }}
+    mysql_query:
+      <<: *mysql_params
+      login_db: '{{ test_db }}'
+      query: 'SELECT id, story FROM {{ test_table3 }}'
+    register: result
+
+  - assert:
+      that:
+      - result.rowcount == [2]
+
+  - name: Pass wrong query type
+    mysql_query:
+      <<: *mysql_params
+      login_db: '{{ test_db }}'
+      query: {'this type is': 'wrong'}
+    register: result
+    ignore_errors: yes
+
+  - assert:
+      that:
+      - result is failed
+      - result.msg is search('the query option value must be a string or list')
+
+  - name: Pass wrong query element
+    mysql_query:
+      <<: *mysql_params
+      login_db: '{{ test_db }}'
+      query:
+      - 'SELECT now()'
+      - {'this type is': 'wrong'}
+    register: result
+    ignore_errors: yes
+
+  - assert:
+      that:
+      - result is failed
+      - result.msg is search('the elements in query list must be strings')
+
   - name: Drop db {{ test_db }}
     mysql_query:
       <<: *mysql_params