xctest，带有Nib＆Mkmapview的ViewController

Question

我正在尝试测试我的地图正在显示我给它的位置参数。我正在为我的视图控制器（我讨厌故事板）使用笔尖。

我遇到的问题是我的地图在测试中没有。该地图是在笔尖中初始化的，并且没有在我当前的代码中初始化。我尝试使用我的ViewController初始化笔尖，但这似乎在XCtest中不起作用。

#import <XCTest/XCTest.h>
#include "HomeVC.h"

@interface homeVCTests : XCTestCase {
    HomeVC* homeVC;
}

@end

@implementation homeVCTests

- (void)setUp
{
    [super setUp];

    homeVC = [[HomeVC alloc] initWithNibName:@"HomeVC" bundle:nil];
    [homeVC viewDidLoad];
}

- (void)tearDown
{
    [super tearDown];
}

- (void)testHomeHasMap // Fails
{
    XCTAssertNotNil(homeVC.map, @"Map is not nil.");
}

- (void)testHomeHasMapTypeHybrid // Fails
{
    XCTAssertEqual(homeVC.map.mapType, MKMapTypeHybrid, @"Map type is hybrid(2)");
}

- (void)testHomeHasMapWithMyLocation // Fails
{
    [homeVC setMapCurrentLocation:37.785834 lon:-122.406417];
    CLLocationCoordinate2D checkpoint = CLLocationCoordinate2DMake(37.785834, -122.406417);
    XCTAssertEqual(homeVC.map.centerCoordinate.latitude, checkpoint.latitude, @"Map shows my location.");
}

@end

homevc.h

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <CoreLocation/CoreLocation.h>
#import "AppDelegate.h"

@class User;
@class LoginRegisterVC;

@interface HomeVC : UIViewController <CLLocationManagerDelegate, MKMapViewDelegate> {
IBOutlet MKMapView* map;
CLLocationManager* locationManager;
CLLocationCoordinate2D currentLocation;
LoginRegisterVC* loginRegVC;

User* user;

}
@property(nonatomic, strong)LoginRegisterVC* loginRegVC;
@property(nonatomic, strong)User* user;
@property(nonatomic, strong)IBOutlet MKMapView* map;
@property(nonatomic, strong)CLLocationManager* locationManager;
@property(nonatomic)CLLocationCoordinate2D currentLocation;


-(void)setMapCurrentLocation:(float)lat lon:(float)lon;
@end

homevc.m

#import "HomeVC.h"
#import "User.h"
#import "LoginRegisterVC.h"

#define METERS_PER_MILE 1609.344

@interface HomeVC ()

@end

@implementation HomeVC
@synthesize map, locationManager, loginRegVC, user;
@synthesize currentLocation = _currentLocation;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];

//self.map = MKMapView.new;
self.map.mapType = MKMapTypeHybrid;
self.map.delegate = self;

//NSLog(@"%lu", self.map.mapType);

[self startStandardUpdates];

[self setMapCurrentLocation:self.locationManager.location.coordinate.latitude
lon:self.locationManager.location.coordinate.longitude];

}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

-(void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:true];

if (self.user.loggedIn==false) {
self.loginRegVC = LoginRegisterVC.new;
self.loginRegVC.user = self.user;
[self presentViewController:self.loginRegVC animated:true completion:nil];
}
}

- (void)startStandardUpdates
{
if (nil == self.locationManager)
self.locationManager = [[CLLocationManager alloc] init];

self.locationManager.delegate = self;
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;

self.locationManager.distanceFilter = 5; // meters

[self.locationManager startUpdatingLocation];
}

- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
NSLog(@"%f, %f", newLocation.coordinate.latitude, newLocation.coordinate.longitude);
[self setMapCurrentLocation:newLocation.coordinate.latitude lon:newLocation.coordinate.longitude];
}

- (void)locationManager:(CLLocationManager *)manager monitoringDidFailForRegion:(CLRegion *)region withError:(NSError *)error
{

}

-(void)setMapCurrentLocation:(float)lat lon:(float)lon
{
self.currentLocation = CLLocationCoordinate2DMake(lat, lon);
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(self.currentLocation,
0.5*METERS_PER_MILE,
0.5*METERS_PER_MILE);
[self.map setRegion:region animated:true];
NSLog(@"map center: %f, %f", self.map.centerCoordinate.latitude, self.map.centerCoordinate.longitude);
}
@end

Answer 1

对于实现异步方法的视图控制器，不可能进行这样的单元测试。您的测试方法正在立即执行，因此您看不到结果。您可以使用信号量或其他技术来暂停Runloop，直到各州满足您的要求为止。