[tests] Fix database query test

tests/src/firebase.js

@@ -26,6 +26,8 @@ instances.web.database().ref('tests/priority').setWithPriority({
   foo: 'bar',
 }, 666);
 
+instances.web.database().ref('tests/query').set(DatabaseContents.QUERY);
+
 
 // instances.native.messaging().subscribeToTopic('fcm_test');
 

tests/src/tests/support/DatabaseContents.js

@@ -23,6 +23,14 @@ export default {
     },
   },
 
+  QUERY: [{
+    search: 'foo',
+  }, {
+    search: 'bar',
+  }, {
+    search: 'blah',
+  }],
+
   ISSUES: {
     // https://github.com/invertase/react-native-firebase/issues/100
     100: {