gistfile1.txt

- (void)testExample
{

    NSString *jsonString = @"{\"user\":{\" .... ";

    NSError *error = nil;
    NSDictionary *jsonDictionary = [NSJSONSerialization
                                        JSONObjectWithData: [jsonString dataUsingEncoding:NSUTF8StringEncoding]
                                        options: NSJSONReadingMutableContainers
                                        error: &error
                                    ];
    
    Director *director = [[Director alloc] initWithMOC:self.moc];

    BOOL result = [director loadJSON:jsonDictionary];
    XCTAssertTrue(result, @"loadJSON should return true");
    
    
//  1 User should be created
    
    NSFetchRequest *fetchRequest1 = [[NSFetchRequest alloc] init];
    NSEntityDescription *userEntity = [NSEntityDescription entityForName:@"User" inManagedObjectContext:self.moc];
    [fetchRequest1 setEntity:userEntity];
    NSArray *fetchedUsers = [self.moc executeFetchRequest:fetchRequest1 error:&error];

    XCTAssertTrue([fetchedUsers count] == 1, @"director should create user");
    XCTAssertFalse(error, @"fetch should generate no errors");
    
//  2 Todos should be created
    
    NSObject *user = [fetchedUsers firstObject];
    NSArray *userTodos = [user valueForKey:@"todos"];
    XCTAssertTrue([userTodos count] == 2, @"director should create 2 tods for user");
}