Review FirebaseMessaging Tests files (#13402)

Author: MojtabaHs

FirebaseMessaging/Tests/UnitTests/FIRMessagingExtensionHelperTest.m

@@ -83,7 +83,7 @@ - (void)testModifyNotificationWithValidPayloadData {
     [_mockExtensionHelper populateNotificationContent:content withContentHandler:handler];
     OCMVerify([_mockExtensionHelper loadAttachmentForURL:[OCMArg any]
                                        completionHandler:[OCMArg any]]);
-    // Wait longer to accomodate increased network latency when running on CI.
+    // Wait longer to accommodate increased network latency when running on CI.
     [self waitForExpectationsWithTimeout:5.0 handler:nil];
   }
 }

FirebaseMessaging/Tests/UnitTests/FIRMessagingPendingTopicsListTest.m

@@ -111,7 +111,7 @@ - (void)testBatchSizeReductionAfterSuccessfulTopicUpdate {
   pendingTopics.delegate = self.alwaysReadyDelegate;
 
   XCTestExpectation *batchSizeReductionExpectation =
-      [self expectationWithDescription:@"Batch size was reduced after topic suscription"];
+      [self expectationWithDescription:@"Batch size was reduced after topic subscription"];
 
   __weak id weakSelf = self;
   self.alwaysReadyDelegate.subscriptionHandler =

FirebaseMessaging/Tests/UnitTests/FIRMessagingPubSubTest.m

@@ -83,7 +83,7 @@ - (void)testTopicHasValidToicsPrefix {
   XCTAssertTrue([FIRMessagingPubSub hasTopicsPrefix:@"/topics/"]);
 }
 
-/// Tests topic prefix wih no prefix.
+/// Tests topic prefix with no prefix.
 - (void)testAddTopicPrefix_withNoPrefix {
   NSString *topic = [FIRMessagingPubSub addPrefixToTopic:@""];
   XCTAssertTrue([FIRMessagingPubSub hasTopicsPrefix:topic]);

FirebaseMessaging/Tests/UnitTests/FIRMessagingRemoteNotificationsProxyTest.m

@@ -86,7 +86,7 @@ - (void)application:(GULApplication *)application
 
 @end
 
-#pragma mark - Incompete UNUserNotificationCenterDelegate
+#pragma mark - Incomplete UNUserNotificationCenterDelegate
 @interface IncompleteUserNotificationCenterDelegate : NSObject <UNUserNotificationCenterDelegate>
 @end
 @implementation IncompleteUserNotificationCenterDelegate