Testing networking with OHHTTPStubs and Expecta

NetworkingTest.m

@interface BitcoinLoaderSpecs : XCTestCase
@property (nonatomic, strong) RateModel * rate;
@end

@implementation BitcoinLoaderSpecs

- (void)setUp
{
    [super setUp];
    
    [OHHTTPStubs stubRequestsPassingTest:^BOOL(NSURLRequest * request)
    {
        return YES;
    } withStubResponse:^OHHTTPStubsResponse *(NSURLRequest * request)
    {
        return [OHHTTPStubsResponse responseWithFileAtPath:OHPathForFileInBundle(@"bitcoin_rate.json", nil)
                                                statusCode:200
                                                   headers:@{@"Content-Type":@"application/json"}];
    }];

    [BitcoinLoader loadBitcoinRateWithSuccess:^(NSURLSessionDataTask * task, id responseObject)
    {
        self.rate = responseObject;
    } failure:^(NSURLSessionDataTask * task, NSError * error)
    {
        XCTFail();
    }];
    
    expect(self.rate).willNot.beNil();
}

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

-(void)testRateHasCorrectClass
{
    expect([self.rate class]).to.equal([RateModel class]);
}

// Etc