Add user service tests

api/resources/db/migration/V7__Update_constraints_cascade_delete.sql

@@ -1,19 +1,19 @@
 -- ON DELETE -> CASCADE
 
 ALTER TABLE `Notes`
-    DROP CONSTRAINT `Notes_ibfk_1`;
+    DROP CONSTRAINT IF EXISTS `Notes_ibfk_1`;
 
 ALTER TABLE `Notes`
     ADD FOREIGN KEY (`user_id`) REFERENCES `Users` (`id`) ON DELETE CASCADE ON UPDATE RESTRICT;
 
 ALTER TABLE `Chapters`
-    DROP CONSTRAINT `Chapters_ibfk_1`;
+    DROP CONSTRAINT IF EXISTS `Chapters_ibfk_1`;
 
 ALTER TABLE `Chapters`
     ADD FOREIGN KEY (`note_id`) REFERENCES `Notes` (`id`) ON DELETE CASCADE ON UPDATE RESTRICT;
 
 ALTER TABLE `Tags`
-    DROP CONSTRAINT `Tags_ibfk_1`;
+    DROP CONSTRAINT IF EXISTS `Tags_ibfk_1`;
 
 ALTER TABLE `Tags`
-    ADD FOREIGN KEY (`note_id`) REFERENCES `Notes` (`id`) ON DELETE CASCADE ON UPDATE RESTRICT;
+    ADD FOREIGN KEY (`note_id`) REFERENCES `Notes` (`id`) ON DELETE CASCADE ON UPDATE RESTRICT;