test(e2e): de-flake some e2e tests with sleeps

Author: mikehardy

packages/database/e2e/query/once.e2e.js

@@ -116,14 +116,15 @@ describe('database().ref().once()', function () {
     }
   });
 
+  // TODO flaky android
   it('it calls when a child is added', async function () {
     const value = Date.now();
     const callback = sinon.spy();
     const ref = firebase.database().ref(`${TEST_PATH}/childAdded`);
 
     ref.once('child_added').then($ => callback($.val()));
     await ref.child('foo').set(value);
-    await Utils.sleep(1000);
+    await Utils.sleep(2000);
 
     callback.should.be.calledOnce();
     callback.should.be.calledWith(value);
@@ -135,9 +136,9 @@ describe('database().ref().once()', function () {
 
     await ref.child('foo').set(1);
     ref.once('child_changed').then($ => callback($.val()));
-    await Utils.sleep(1000);
+    await Utils.sleep(2000);
     await ref.child('foo').set(2);
-    await Utils.sleep(1000);
+    await Utils.sleep(2000);
     callback.should.be.calledOnce();
     callback.should.be.calledWith(2);
   });
@@ -149,9 +150,9 @@ describe('database().ref().once()', function () {
     await child.set('foo');
 
     ref.once('child_removed').then($ => callback($.val()));
-    await Utils.sleep(1000);
+    await Utils.sleep(2000);
     await child.remove();
-    await Utils.sleep(1000);
+    await Utils.sleep(2000);
 
     callback.should.be.calledOnce();
     callback.should.be.calledWith('foo');

packages/database/e2e/reference/push.e2e.js

@@ -67,7 +67,7 @@ describe('database().ref().push()', function () {
     ref.push(value, () => {
       callback();
     });
-    await Utils.sleep(1000);
+    await Utils.sleep(2000);
     callback.should.be.calledOnce();
   });
 
@@ -86,7 +86,7 @@ describe('database().ref().push()', function () {
       error.message.should.containEql("doesn't have permission to access");
       callback();
     });
-    await Utils.sleep(1000);
+    await Utils.sleep(2000);
     callback.should.be.calledOnce();
   });
 });

packages/firestore/e2e/QuerySnapshot.e2e.js

@@ -163,7 +163,7 @@ describe('firestore.QuerySnapshot', function () {
         .collection(`${COLLECTION}/${Utils.randString(12, '#aA')}/metadatachanges-true-false`);
       const unsub = colRef.onSnapshot({ includeMetadataChanges: true }, callback);
       await colRef.add({ foo: 'bar' });
-      await Utils.spyToBeCalledTimesAsync(callback, 3);
+      await Utils.spyToBeCalledTimesAsync(callback, 3, 10000);
       unsub();
 
       const snap1 = callback.args[0][0];