Add tests for id<BUYPaymentToken> concrete classes.

Mobile Buy SDK/Mobile Buy SDK Tests/BUYApplePayTokenTests.m

+//
+//  BUYApplePayTokenTests.m
+//  Mobile Buy SDK
+//
+//  Created by Dima Bart on 2016-05-12.
+//  Copyright © 2016 Shopify Inc. All rights reserved.
+//
+
+#import <XCTest/XCTest.h>
+#import <PassKit/PassKit.h>
+#import "BUYApplePayToken.h"
+
+static NSString * const BUYTestingToken = @"7fc9b0e9-ed1c-4d77-9bac-78c904aa03c1";
+
+@interface BUYApplePayToken (Private)
+- (NSString *)paymentTokenString;
+@end
+
+@interface BUYApplePayTestToken : PKPaymentToken
+
+@property (strong, nonatomic) NSData *testData;
+
+@end
+
+@implementation BUYApplePayTestToken
+
++ (instancetype)validToken {
+	BUYApplePayTestToken *token = [BUYApplePayTestToken new];
+	token->_testData            = [BUYTestingToken dataUsingEncoding:NSUTF8StringEncoding];
+	return token;
+}
+
++ (instancetype)invalidToken {
+	return [BUYApplePayTestToken new];
+}
+
+- (NSData *)paymentData {
+	return  _testData;
+}
+
+@end
+
+@interface BUYApplePayTokenTests : XCTestCase
+
+@end
+
+@implementation BUYApplePayTokenTests
+
+- (void)testInitWithValidSessionID {
+	BUYApplePayToken *token = [[BUYApplePayToken alloc] initWithPaymentToken:[BUYApplePayTestToken validToken]];
+	XCTAssertNotNil(token);
+	XCTAssertEqualObjects(BUYTestingToken, [token paymentTokenString]);
+}
+
+- (void)testInitWithInvalidSessionID {
+	XCTAssertThrows([[BUYApplePayToken alloc] initWithPaymentToken:nil]);
+	XCTAssertThrows([[BUYApplePayToken alloc] initWithPaymentToken:[BUYApplePayTestToken invalidToken]]);
+}
+
+- (void)testJSONConversion {
+	BUYApplePayToken *token = [[BUYApplePayToken alloc] initWithPaymentToken:[BUYApplePayTestToken validToken]];
+	NSDictionary *json        = @{
+								  @"payment_token" : @{
+										  @"type"         : @"apple_pay",
+										  @"payment_data" : BUYTestingToken,
+										  },
+								  };
+	XCTAssertEqualObjects(token.JSONDictionary, json);
+}
+
+@end

Mobile Buy SDK/Mobile Buy SDK Tests/BUYCreditCardTokenTests.m

+//
+//  BUYCreditCardTokenTests.m
+//  Mobile Buy SDK
+//
+//  Created by Dima Bart on 2016-05-12.
+//  Copyright © 2016 Shopify Inc. All rights reserved.
+//
+
+#import <XCTest/XCTest.h>
+#import "BUYCreditCardToken.h"
+
+@interface BUYCreditCardTokenTests : XCTestCase
+
+@end
+
+@implementation BUYCreditCardTokenTests
+
+- (void)testInitWithValidSessionID {
+	BUYCreditCardToken *token = [[BUYCreditCardToken alloc] initWithPaymentSessionID:@"token"];
+	XCTAssertNotNil(token);
+}
+
+- (void)testInitWithInvalidSessionID {
+	XCTAssertThrows([[BUYCreditCardToken alloc] initWithPaymentSessionID:nil]);
+	XCTAssertThrows([[BUYCreditCardToken alloc] initWithPaymentSessionID:@""]);
+}
+
+- (void)testJSONConversion {
+	BUYCreditCardToken *token = [[BUYCreditCardToken alloc] initWithPaymentSessionID:@"token"];
+	NSDictionary *json        = @{
+								  @"payment_session_id" : @"token",
+								  };
+	XCTAssertEqualObjects(token.JSONDictionary, json);
+}
+
+@end

Mobile Buy SDK/Mobile Buy SDK.xcodeproj/project.pbxproj

@@ -411,6 +411,8 @@
 		9A47CF061CE3A24600A6D5BA /* BUYApplePayToken.m in Sources */ = {isa = PBXBuildFile; fileRef = 9A47CF021CE3A24600A6D5BA /* BUYApplePayToken.m */; };
 		9A47CF071CE3ACE000A6D5BA /* BUYPaymentSessionProvider.h in Headers */ = {isa = PBXBuildFile; fileRef = 9A47CEF81CE39EC200A6D5BA /* BUYPaymentSessionProvider.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		9A47CF081CE3ACE100A6D5BA /* BUYPaymentSessionProvider.h in Headers */ = {isa = PBXBuildFile; fileRef = 9A47CEF81CE39EC200A6D5BA /* BUYPaymentSessionProvider.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		9A47CF0D1CE4D6C600A6D5BA /* BUYCreditCardTokenTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 9A47CF0C1CE4D6C600A6D5BA /* BUYCreditCardTokenTests.m */; };
+		9A47CF0F1CE4D7A800A6D5BA /* BUYApplePayTokenTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 9A47CF0E1CE4D7A800A6D5BA /* BUYApplePayTokenTests.m */; };
 		9A6B03791CDA5D4F0054C26E /* BUYAccountCredentialsTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 9A6B03781CDA5D4F0054C26E /* BUYAccountCredentialsTests.m */; };
 		BE10079B1B6165EC0031CEE7 /* BUYOptionValueCell.h in Headers */ = {isa = PBXBuildFile; fileRef = BE1007991B6165EC0031CEE7 /* BUYOptionValueCell.h */; };
 		BE10079C1B6165EC0031CEE7 /* BUYOptionValueCell.m in Sources */ = {isa = PBXBuildFile; fileRef = BE10079A1B6165EC0031CEE7 /* BUYOptionValueCell.m */; };
@@ -752,6 +754,8 @@
 		9A47CEFB1CE39F5B00A6D5BA /* BUYCreditCardToken.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = BUYCreditCardToken.m; sourceTree = "<group>"; };
 		9A47CF011CE3A24600A6D5BA /* BUYApplePayToken.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = BUYApplePayToken.h; sourceTree = "<group>"; };
 		9A47CF021CE3A24600A6D5BA /* BUYApplePayToken.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = BUYApplePayToken.m; sourceTree = "<group>"; };
+		9A47CF0C1CE4D6C600A6D5BA /* BUYCreditCardTokenTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = BUYCreditCardTokenTests.m; sourceTree = "<group>"; };
+		9A47CF0E1CE4D7A800A6D5BA /* BUYApplePayTokenTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = BUYApplePayTokenTests.m; sourceTree = "<group>"; };
 		9A6B03781CDA5D4F0054C26E /* BUYAccountCredentialsTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = BUYAccountCredentialsTests.m; sourceTree = "<group>"; };
 		BE1007991B6165EC0031CEE7 /* BUYOptionValueCell.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = BUYOptionValueCell.h; sourceTree = "<group>"; };
 		BE10079A1B6165EC0031CEE7 /* BUYOptionValueCell.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = BUYOptionValueCell.m; sourceTree = "<group>"; };
@@ -1026,6 +1030,7 @@
 		90F592ED1B0D5EFE0026B382 /* Mobile Buy SDK Tests */ = {
 			isa = PBXGroup;
 			children = (
+				9A47CF0B1CE4D6A500A6D5BA /* Payment Session Providers */,
 				9A102D1C1CDD257D0026CC43 /* Models Tests */,
 				90F592F91B0D5F4C0026B382 /* BUYApplePayAdditionsTest.m */,
 				8491102E1CCE708900E53B93 /* BUYArrayAdditionsTests.m */,
@@ -1158,6 +1163,15 @@
 			name = "Payment Session Providers";
 			sourceTree = "<group>";
 		};
+		9A47CF0B1CE4D6A500A6D5BA /* Payment Session Providers */ = {
+			isa = PBXGroup;
+			children = (
+				9A47CF0C1CE4D6C600A6D5BA /* BUYCreditCardTokenTests.m */,
+				9A47CF0E1CE4D7A800A6D5BA /* BUYApplePayTokenTests.m */,
+			);
+			name = "Payment Session Providers";
+			sourceTree = "<group>";
+		};
 		BE1007981B6165CD0031CEE7 /* Cells */ = {
 			isa = PBXGroup;
 			children = (
@@ -1869,6 +1883,7 @@
 				90F593061B0D5F4C0026B382 /* BUYCartTest.m in Sources */,
 				90F593051B0D5F4C0026B382 /* BUYApplePayAdditionsTest.m in Sources */,
 				8498DCC91CDD208200BD12A8 /* BUYClientTest_Customer.m in Sources */,
+				9A47CF0D1CE4D6C600A6D5BA /* BUYCreditCardTokenTests.m in Sources */,
 				90F593071B0D5F4C0026B382 /* BUYCheckoutTest.m in Sources */,
 				90F593091B0D5F4C0026B382 /* BUYClientTest.m in Sources */,
 				90F5930B1B0D5F4C0026B382 /* BUYObjectTests.m in Sources */,
@@ -1876,6 +1891,7 @@
 				9A102D1B1CDD1F960026CC43 /* BUYErrorTests.m in Sources */,
 				90F593081B0D5F4C0026B382 /* BUYClientTest_Storefront.m in Sources */,
 				90BBCD731B87B6BA00FCCE51 /* BUYPKContact.m in Sources */,
+				9A47CF0F1CE4D7A800A6D5BA /* BUYApplePayTokenTests.m in Sources */,
 				849110331CCE708900E53B93 /* BUYStringAdditionsTests.m in Sources */,
 				906CF1B11B8B66AE001F7D5B /* BUYCNPostalAddress.m in Sources */,
 				8498DCD01CDD208200BD12A8 /* TestModel.m in Sources */,

Mobile Buy SDK/Mobile Buy SDK/Models/BUYApplePayToken.m

@@ -38,6 +38,7 @@
 {
 	self = [super init];
 	if (self) {
+		NSAssert(paymentToken.paymentData.length > 0, @"Failed to initialize BUYApplePayToken. Invalid or nil paymentToken.");
 		_paymentToken = paymentToken;
 	}
 	return self;

Mobile Buy SDK/Mobile Buy SDK/Models/BUYCreditCardToken.m

@@ -34,7 +34,7 @@
 {
 	self = [super init];
 	if (self) {
-		NSAssert(paymentSessionID, @"Failed to initialize BUYCreditCardToken. Invalid or nil payment session ID.");
+		NSAssert(paymentSessionID.length > 0, @"Failed to initialize BUYCreditCardToken. Invalid or nil payment session ID.");
 		
 		_paymentSessionID = paymentSessionID;
 	}