Fix tests for nullability.

Mobile Buy SDK/Mobile Buy SDK Tests/BUYClientTest.m

@@ -75,7 +75,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 {
 	BUYCart *cart = [self cart];
 	BUYCheckout *checkout = [[BUYCheckout alloc] initWithCart:cart];
-	NSURLSessionDataTask *task = [self.client createCheckout:checkout completion:nil];
+	NSURLSessionDataTask *task = [self.client createCheckout:checkout completion:^(BUYCheckout *checkout, NSError *error) {}];
 	XCTAssertNotNil(task);
 	
 	NSURLRequest *request = task.originalRequest;
@@ -107,7 +107,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 	
 	XCTAssertThrows([checkout setPartialAddressesValue:NO]);
 
-	NSURLSessionDataTask *task = [self.client createCheckout:checkout completion:nil];
+	NSURLSessionDataTask *task = [self.client createCheckout:checkout completion:^(BUYCheckout *checkout, NSError *error) {}];
 	NSDictionary *json = [NSJSONSerialization JSONObjectWithData:task.originalRequest.HTTPBody options:0 error:nil];
 	XCTAssertFalse([json[@"checkout"][@"partial_addresses"] boolValue]);
 	
@@ -121,7 +121,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 	}
 	
 	checkout.shippingAddress = partialAddress;
-	task = [self.client createCheckout:checkout completion:nil];
+	task = [self.client createCheckout:checkout completion:^(BUYCheckout *checkout, NSError *error) {}];
 	json = [NSJSONSerialization JSONObjectWithData:task.originalRequest.HTTPBody options:0 error:nil];
 
 	XCTAssertTrue([json[@"checkout"][@"partial_addresses"] boolValue]);
@@ -131,7 +131,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 {
 	BUYCheckout *checkout = [[BUYCheckout alloc] initWithModelManager:self.client.modelManager JSONDictionary:@{@"token": @"abcdef", @"payment_due": @0}];
 	
-	NSURLSessionDataTask *task = [self.client completeCheckout:checkout paymentToken:nil completion:nil];
+	NSURLSessionDataTask *task = [self.client completeCheckout:checkout paymentToken:nil completion:^(BUYCheckout *checkout, NSError *error) {}];
 	XCTAssertNotNil(task);
 }
 
@@ -150,7 +150,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 	NSURL *url = [NSURL URLWithString:@"sampleapp://"];
 	
 	XCTAssertThrows(
-		[self.client getCompletionStatusOfCheckoutURL:url completion:nil]
+		[self.client getCompletionStatusOfCheckoutURL:url completion:^(BUYStatus status, NSError *error) {}]
 	);
 }
 
@@ -191,12 +191,12 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 {
 	id<BUYPaymentToken> token = [[BUYApplePayToken alloc] initWithPaymentToken:[PKPaymentToken new]];
 	XCTAssertThrows(
-		[self.client completeCheckout:nil paymentToken:token completion:nil]
+		[self.client completeCheckout:[BUYCheckout new] paymentToken:token completion:^(BUYCheckout *checkout, NSError *error) {}]
 	);
 
 	BUYCheckout *checkout = [[BUYCheckout alloc] initWithModelManager:self.client.modelManager JSONDictionary:@{@"token": @"abcdef", @"payment_due": @0}];
 	XCTAssertNoThrow(
-		[self.client completeCheckout:checkout paymentToken:nil completion:nil]
+		[self.client completeCheckout:checkout paymentToken:nil completion:^(BUYCheckout *checkout, NSError *error) {}]
 	);
 }
 
@@ -212,7 +212,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 
 - (void)testProductsInCollectionWithSortOrderCollectionDefault
 {
-	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortCollectionDefault completion:nil];
+	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortCollectionDefault completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
 	XCTAssertEqualObjects(task.originalRequest.HTTPMethod, @"GET");
 	XCTAssertEqualObjects(task.originalRequest.URL.scheme, @"https");
 	XCTAssertEqualObjects(task.originalRequest.URL.host, @"test_shop");
@@ -224,7 +224,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 
 - (void)testProductsInCollectionWithSortOrderBestSelling
 {
-	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortBestSelling completion:nil];
+	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortBestSelling completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
 	XCTAssertEqualObjects(task.originalRequest.HTTPMethod, @"GET");
 	XCTAssertEqualObjects(task.originalRequest.URL.scheme, @"https");
 	XCTAssertEqualObjects(task.originalRequest.URL.host, @"test_shop");
@@ -236,7 +236,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 
 - (void)testProductsInCollectionWithSortOrderCreatedAscending
 {
-	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortCreatedAscending completion:nil];
+	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortCreatedAscending completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
 	XCTAssertEqualObjects(task.originalRequest.HTTPMethod, @"GET");
 	XCTAssertEqualObjects(task.originalRequest.URL.scheme, @"https");
 	XCTAssertEqualObjects(task.originalRequest.URL.host, @"test_shop");
@@ -248,7 +248,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 
 - (void)testProductsInCollectionWithSortOrderCreatedDescending
 {
-	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortCreatedDescending completion:nil];
+	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortCreatedDescending completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
 	XCTAssertEqualObjects(task.originalRequest.HTTPMethod, @"GET");
 	XCTAssertEqualObjects(task.originalRequest.URL.scheme, @"https");
 	XCTAssertEqualObjects(task.originalRequest.URL.host, @"test_shop");
@@ -260,7 +260,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 
 - (void)testProductsInCollectionWithSortOrderPriceAscending
 {
-	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortPriceAscending completion:nil];
+	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortPriceAscending completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
 	XCTAssertEqualObjects(task.originalRequest.HTTPMethod, @"GET");
 	XCTAssertEqualObjects(task.originalRequest.URL.scheme, @"https");
 	XCTAssertEqualObjects(task.originalRequest.URL.host, @"test_shop");
@@ -272,7 +272,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 
 - (void)testProductsInCollectionWithSortOrderPriceDescending
 {
-	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortPriceDescending completion:nil];
+	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortPriceDescending completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
 	XCTAssertEqualObjects(task.originalRequest.HTTPMethod, @"GET");
 	XCTAssertEqualObjects(task.originalRequest.URL.scheme, @"https");
 	XCTAssertEqualObjects(task.originalRequest.URL.host, @"test_shop");
@@ -284,7 +284,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 
 - (void)testProductsInCollectionWithSortOrderTitleAscending
 {
-	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortTitleAscending completion:nil];
+	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortTitleAscending completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
 	XCTAssertEqualObjects(task.originalRequest.HTTPMethod, @"GET");
 	XCTAssertEqualObjects(task.originalRequest.URL.scheme, @"https");
 	XCTAssertEqualObjects(task.originalRequest.URL.host, @"test_shop");
@@ -296,7 +296,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 
 - (void)testProductsInCollectionWithSortOrderTitleDescending
 {
-	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortTitleDescending completion:nil];
+	NSURLSessionDataTask *task = [self.client getProductsPage:1 inCollection:@1 sortOrder:BUYCollectionSortTitleDescending completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
 	XCTAssertEqualObjects(task.originalRequest.HTTPMethod, @"GET");
 	XCTAssertEqualObjects(task.originalRequest.URL.scheme, @"https");
 	XCTAssertEqualObjects(task.originalRequest.URL.host, @"test_shop");

Mobile Buy SDK/Mobile Buy SDK Tests/BUYIntegrationTest.m

@@ -909,7 +909,7 @@
 		return [OHHTTPStubsResponse responseWithKey:@"testInvalidIntegrationBadShopUrl_0"];
 	}];
 	
-	self.client = [[BUYClient alloc] initWithShopDomain:@"asdfdsasdfdsasdfdsadsfowinfaoinfw.myshopify.com" apiKey:self.apiKey appId:nil];
+	self.client = [[BUYClient alloc] initWithShopDomain:@"asdfdsasdfdsasdfdsadsfowinfaoinfw.myshopify.com" apiKey:self.apiKey appId:@"88234"];
 	[self.client createCheckout:_checkout completion:^(BUYCheckout *checkout, NSError *error) {
 		XCTAssertNotNil(error);
 		XCTAssertEqualObjects(error.domain, @"shopify");