Delete Account: started adding unit tests

__mocks__/gatsby-plugin-firebase/functions/httpsCallableResult.js

@@ -0,0 +1,19 @@
+/* eslint-disable no-underscore-dangle */
+import { v4 as uuidv4 } from 'uuid';
+
+class HttpsCallableResult {
+  constructor(data) {
+    this._uuid = uuidv4();
+    this._data = data;
+  }
+
+  get data() {
+    return this._data;
+  }
+
+  get uuid() {
+    return this._uuid;
+  }
+}
+
+export default HttpsCallableResult;