load Storyboard in code

storyboard.m

it(@"should instantiate the view controller", ^{
    UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    ViewController *vc = [mainStoryboard instantiateViewControllerWithIdentifier:@"ViewController"];
    [[vc shouldNot] beNil]
});