test: Implement connection fixture

packages/backend/test/fixtures/connection.ts

@@ -0,0 +1,26 @@
+import Connection from '../../src/models/connection';
+import appConfig from '../../src/config/app';
+import { AES } from 'crypto-js';
+
+const createConnection = async (params: Partial<Connection> = {}) => {
+  params.key = params?.key || 'deepl';
+
+  const formattedData = params.formattedData || {
+    screenName: 'Test - DeepL Connection',
+    authenticationKey: 'test key',
+  };
+
+  params.data = AES.encrypt(
+    JSON.stringify(formattedData),
+    appConfig.encryptionKey
+  ).toString();
+
+  const [connection] = await global.knex
+    .table('connections')
+    .insert(params)
+    .returning('*');
+
+  return connection;
+};
+
+export default createConnection;