app-backend: always test towards MySQL

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

plugins/app-backend/src/lib/assets/StaticAssetsStore.test.ts

@@ -36,9 +36,7 @@ function createDatabaseManager(
 jest.setTimeout(60_000);
 
 describe('StaticAssetsStore', () => {
-  const databases = TestDatabases.create({
-    ids: ['MYSQL_8', 'POSTGRES_16', 'POSTGRES_12', 'SQLITE_3'],
-  });
+  const databases = TestDatabases.create();
 
   it.each(databases.eachSupportedId())(
     'should store and retrieve assets, %p',

plugins/app-backend/src/setupTests.ts

@@ -14,4 +14,8 @@
  * limitations under the License.
  */
 
-export {};
+import { TestDatabases } from '@backstage/backend-test-utils';
+
+TestDatabases.setDefaults({
+  ids: ['MYSQL_8', 'POSTGRES_16', 'POSTGRES_12', 'SQLITE_3'],
+});