Firebase Stub: query parameters not kept between ref calls

__mocks__/__tests__/gatsby-plugin-firebase.test.js

@@ -255,5 +255,30 @@ describe('FirebaseStub', () => {
         expect(resume.user).toEqual(DatabaseConstants.user1.uid),
       );
     });
+
+    it('previously set query parameters are not kept when retrieving reference again', async () => {
+      let reference = null;
+
+      reference = FirebaseStub.database().ref(DatabaseConstants.resumesPath);
+      expect(reference).toBeTruthy();
+      const { uuid } = reference;
+      expect(reference.orderByChildPath).toHaveLength(0);
+      expect(reference.equalToValue).toHaveLength(0);
+
+      reference = FirebaseStub.database()
+        .ref(DatabaseConstants.resumesPath)
+        .orderByChild('user')
+        .equalTo('testuser1');
+      expect(reference).toBeTruthy();
+      expect(reference.uuid).toBe(uuid);
+      expect(reference.orderByChildPath).toBe('user');
+      expect(reference.equalToValue).toBe('testuser1');
+
+      reference = FirebaseStub.database().ref(DatabaseConstants.resumesPath);
+      expect(reference).toBeTruthy();
+      expect(reference.uuid).toBe(uuid);
+      expect(reference.orderByChildPath).toHaveLength(0);
+      expect(reference.equalToValue).toHaveLength(0);
+    });
   });
 });

__mocks__/gatsby-plugin-firebase/database/database.js

@@ -78,6 +78,7 @@ class Database {
     const newRef = new Reference(referencePath, () => this._data);
     const existingRef = this._references[newRef.path];
     if (existingRef) {
+      existingRef.initializeQueryParameters();
       return existingRef;
     }
 

__mocks__/gatsby-plugin-firebase/database/reference.js

@@ -29,8 +29,7 @@ class Reference {
 
     this._getDatabaseData = getDatabaseData;
 
-    this._orderByChildPath = '';
+    this.initializeQueryParameters();
-    this._equalToValue = '';
   }
 
   get path() {
@@ -41,6 +40,14 @@ class Reference {
     return this._uuid;
   }
 
+  get orderByChildPath() {
+    return this._orderByChildPath;
+  }
+
+  get equalToValue() {
+    return this._equalToValue;
+  }
+
   getData() {
     const databaseData = this._getDatabaseData();
 
@@ -59,10 +66,10 @@ class Reference {
     ) {
       data = this.path in databaseData ? databaseData[this.path] : null;
 
-      if (data && this._orderByChildPath && this._equalToValue) {
+      if (data && this.orderByChildPath && this.equalToValue) {
         return Object.fromEntries(
           Object.entries(data).filter(
-            ([, value]) => value[this._orderByChildPath] === this._equalToValue,
+            ([, value]) => value[this.orderByChildPath] === this.equalToValue,
           ),
         );
       }
@@ -92,6 +99,11 @@ class Reference {
     return null;
   }
 
+  initializeQueryParameters() {
+    this._orderByChildPath = '';
+    this._equalToValue = '';
+  }
+
   off() {
     return this !== null;
   }