NotificationManager.h
#import <Foundation/Foundation.h>
@interface NotificationManager : NSObject
-(void)postNotification;
@end
NotificationManager.m
#import "NotificationManager.h"
@implementation NotificationManager
-(void)postNotification
{
NSDictionary *userInfo = [NSDictionary dictionaryWithObject:@"Some data" forKey:@"TestData"];
[[NSNotificationCenter defaultCenter] postNotification:[NSNotification notificationWithName:@"TestNotification" object:nil userInfo:userInfo]];
}
@end
Unit test:
-(void)testNotification
{
id observerMock = [OCMockObject observerMock];
[[NSNotificationCenter defaultCenter]addMockObserver:observerMock name:@"TestNotification" object:nil];
[[observerMock expect] notificationWithName:@"TestNotification" object:[OCMArg any]];
NotificationManager * nm= [[NotificationManager alloc]init];
[nm postNotification];
[observerMock verify];
[[NSNotificationCenter defaultCenter] removeObserver:observerMock];
}
I get error:
OCMockObserver: unexpected notification observed: NSConcreteNotification 0xfbbad70 {name = TestNotification; userInfo = { TestData = "Some data"; }}
If I post notification without userInfo object (just nil), test works. Can someone please explain why?
When you don't specify userInfo
it expects nil for the value. Change it to:
[[observerMock expect] notificationWithName:@"TestNotification" object:[OCMArg any] userInfo:[OCMArg any]];
It should pass.