Sample iOS Unit Tests: Model class that adopts the MKAnnotation protocol.

Sample iOS Unit Tests: Model class that adopts the MKAnnotation protocol.

#import <XCTest/XCTest.h>
#import "FerryTerminalAnno.h"
#import <CoreLocation/CoreLocation.h>
#import <MapKit/MapKit.h>

@interface FerryTerminalAnnoTest : XCTestCase

@property (nonatomic, strong) FerryTerminalAnno *annoUnderTest;

@end


@implementation FerryTerminalAnnoTest

- (void)setUp
{
    [super setUp];


    //fetch sample data from geojson
    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"layerferryterminals" ofType:@"geojson"];

    NSString *geoJSONString = [[NSString alloc] initWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:NULL];

    NSDictionary *geoJSON = [NSJSONSerialization JSONObjectWithData:[geoJSONString dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingAllowFragments error:nil];

    NSArray *geoJSONFeatures = [geoJSON objectForKey:@"features"];

    NSDictionary *geoJSONAsDict = [geoJSONFeatures objectAtIndex:0];


    //instantiate model object using dictionary
    self.annoUnderTest = [[FerryTerminalAnno alloc] initWithDictionary:geoJSONAsDict];
}

- (void)tearDown
{
    self.annoUnderTest = nil;

    [super tearDown];
}

- (void)testAnnotationModelClassCanBeInstantiatedWithDictionary {

    XCTAssertNotNil(self.annoUnderTest, @"Failed to instantiate annotation");

    XCTAssertNotNil(self.annoUnderTest.title, @"Required title property not initialized for annotation");

    XCTAssertNotNil(self.annoUnderTest.subtitle, @"Required subtitle property not initialized for annotation");

    XCTAssert(self.annoUnderTest.coordinate.latitude > 1, @"Latitude property for annotation not initialized correctly");

    XCTAssert(self.annoUnderTest.coordinate.longitude < 1, @"Longitude property for annotation not initialized correctly.");
}

- (void)testAnnotationConformsToMKAnnotationProtocol {

    XCTAssert([self.annoUnderTest conformsToProtocol:@protocol(MKAnnotation)], @"Annotation under test does not conform to the MKAnnotation protocol");
}

- (void)testAnnotationImplementsMKAnnotationProtocolProperties {

    XCTAssertNotNil(self.annoUnderTest.title, @"Annotation does not have required title property");

    XCTAssertNotNil(self.annoUnderTest.subtitle, @"Annotation does not have required subtitle property");

    XCTAssert(self.annoUnderTest.coordinate.latitude > 0, @"Annotation does not have optional coordinate property");

    XCTAssert(self.annoUnderTest.coordinate.longitude < 0, @"Annotation does not have optional coordinate property");
}

- (void)testAnnoCanBeAddedToMapViewAsMKAnnotation {

    MKMapView *mapView = [[MKMapView alloc] init];

    NSUInteger initialCountOfAnnotations = mapView.annotations.count;

    [mapView addAnnotation:self.annoUnderTest];

    NSUInteger countOfParkAnnotationsAfterAddedToMap = mapView.annotations.count;

    XCTAssertTrue(countOfParkAnnotationsAfterAddedToMap > initialCountOfAnnotations, @"Annotation under test cannot be added to a MKMapView");
}

//continue with application-specific tests ...

@end