mysql_db: add chdir argument (#396)

tests/integration/targets/test_mysql_db/tasks/state_dump_import.yml

@@ -416,6 +416,51 @@
     that:
       - result is changed
 
+########################
+# Test import with chdir
+
+- name: Create dir
+  file:
+    path: ~/subdir
+    state: directory
+
+- name: Create test dump
+  shell: 'echo "SOURCE ./subdir_test.sql" > ~/original_test.sql'
+
+- name: Create test source
+  shell: 'echo "SELECT 1" > ~/subdir/subdir_test.sql'
+
+- name: Try to restore without chdir argument, must fail
+  mysql_db:
+    login_user: '{{ mysql_user }}'
+    login_password: '{{ mysql_password }}'
+    login_host: 127.0.0.1
+    login_port: '{{ mysql_primary_port }}'
+    name: '{{ db_name }}'
+    state: import
+    target: '~/original_test.sql'
+  ignore_errors: yes
+  register: result
+- assert:
+    that:
+    - result is failed
+    - result.msg is search('Failed to open file')
+
+- name: Restore with chdir argument, must pass
+  mysql_db:
+    login_user: '{{ mysql_user }}'
+    login_password: '{{ mysql_password }}'
+    login_host: 127.0.0.1
+    login_port: '{{ mysql_primary_port }}'
+    name: '{{ db_name }}'
+    state: import
+    target: '~/original_test.sql'
+    chdir: ~/subdir
+  register: result
+- assert:
+    that:
+    - result is succeeded
+
 ##########
 # Clean up
 ##########