[in_app_purchase] Add support for SKPaymentQueueDelegate and showPriceConsentIfNeeded

packages/in_app_purchase/in_app_purchase_ios/CHANGELOG.md

@@ -1,7 +1,11 @@
+## 0.1.1
+
+* Added support to register a `SKPaymentQueueDelegateWrapper` and handle changes to active subscriptions accordingly (see also Store Kit's [SKPaymentQueueDelegate](https://developer.apple.com/documentation/storekit/skpaymentqueuedelegate?language=objc)).
+
 ## 0.1.0+2
 
-* Changed the iOS payment queue handler in such a way that it only adds a listener to the SKPaymentQueue when there 
-  is a listener to the Dart purchaseStream.
+* Changed the iOS payment queue handler in such a way that it only adds a listener to the `SKPaymentQueue` when there 
+  is a listener to the Dart `purchaseStream`.
 
 ## 0.1.0+1
 

packages/in_app_purchase/in_app_purchase_ios/example/ios/Podfile

@@ -29,12 +29,12 @@ flutter_ios_podfile_setup
 
 target 'Runner' do
   flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
-
+  
   target 'RunnerTests' do
     inherit! :search_paths
 
     # Matches in_app_purchase test_spec dependency.
-    pod 'OCMock','3.5'
+    pod 'OCMock', '~> 3.6'
   end
 end
 

packages/in_app_purchase/in_app_purchase_ios/example/ios/Runner.xcodeproj/project.pbxproj

@@ -13,14 +13,15 @@
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 		6896B34C21EEB4B800D37AEF /* Stubs.m in Sources */ = {isa = PBXBuildFile; fileRef = 6896B34B21EEB4B800D37AEF /* Stubs.m */; };
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@@ -71,11 +71,13 @@
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+		F67646F72681D9A80048C2EA /* FIAPPaymentQueueDeleteTests.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = FIAPPaymentQueueDeleteTests.m; sourceTree = "<group>"; };
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@@ -106,8 +108,8 @@
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-				027D04BC80EACAAB3B5232B8 /* Pods-RunnerTests.release.xcconfig */,
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@@ -187,6 +189,7 @@
 				6896B34521E9363700D37AEF /* ProductRequestHandlerTests.m */,
 				F78AF3132342BC89008449C7 /* PaymentQueueTests.m */,
 				688DE35021F2A5A100EA2684 /* TranslatorTests.m */,
+				F67646F72681D9A80048C2EA /* FIAPPaymentQueueDeleteTests.m */,
 			);
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 			sourceTree = "<group>";
@@ -196,7 +199,7 @@
 			children = (
 				A5279297219369C600FF69E6 /* StoreKit.framework */,
 				1630769A874F9381BC761FE1 /* libPods-Runner.a */,
-				630DD71BB3F145A22B1DE15D /* libPods-RunnerTests.a */,
+				18D02AB334F1C07BB9A4374A /* libPods-RunnerTests.a */,
 			);
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 			sourceTree = "<group>";
@@ -229,7 +232,7 @@
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 				A59001A021E69658004A3E5E /* Sources */,
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@@ -310,41 +313,41 @@
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@@ -400,6 +403,7 @@
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@@ -593,7 +597,7 @@
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 			buildSettings = {
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@@ -616,7 +620,7 @@
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packages/in_app_purchase/in_app_purchase_ios/example/ios/Runner/Configuration.storekit

@@ -1,4 +1,8 @@
 {
+  "identifier" : "6073E9A3",
+  "nonRenewingSubscriptions" : [
+
+  ],
   "products" : [
     {
       "displayPrice" : "0.99",
@@ -46,7 +50,7 @@
           "adHocOffers" : [
 
           ],
-          "displayPrice" : "3.99",
+          "displayPrice" : "4.99",
           "familyShareable" : false,
           "groupNumber" : 1,
           "internalID" : "922EB597",
@@ -59,7 +63,7 @@
             }
           ],
           "productID" : "subscription_silver",
-          "recurringSubscriptionPeriod" : "P1M",
+          "recurringSubscriptionPeriod" : "P1W",
           "referenceName" : "subscription_silver",
           "subscriptionGroupID" : "D0FEE8D8",
           "type" : "RecurringSubscription"
@@ -91,6 +95,6 @@
   ],
   "version" : {
     "major" : 1,
-    "minor" : 0
+    "minor" : 1
   }
 }

packages/in_app_purchase/in_app_purchase_ios/example/ios/RunnerTests/FIAPPaymentQueueDeleteTests.m

@@ -0,0 +1,120 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import <OCMock/OCMock.h>
+#import <XCTest/XCTest.h>
+#import "FIAObjectTranslator.h"
+#import "FIAPaymentQueueHandler.h"
+#import "Stubs.h"
+
+@import in_app_purchase_ios;
+
+API_AVAILABLE(ios(13.0))
+@interface FIAPPaymentQueueDelegateTests : XCTestCase
+
+@property(strong, nonatomic) FlutterMethodChannel *channel;
+@property(strong, nonatomic) SKPaymentTransaction *transaction;
+@property(strong, nonatomic) SKStorefront *storefront;
+
+@end
+
+@implementation FIAPPaymentQueueDelegateTests
+
+- (void)setUp {
+  self.channel = OCMClassMock(FlutterMethodChannel.class);
+
+  NSDictionary *transactionMap = @{
+    @"transactionIdentifier" : [NSNull null],
+    @"transactionState" : @(SKPaymentTransactionStatePurchasing),
+    @"payment" : [NSNull null],
+    @"error" : [FIAObjectTranslator getMapFromNSError:[NSError errorWithDomain:@"test_stub"
+                                                                          code:123
+                                                                      userInfo:@{}]],
+    @"transactionTimeStamp" : @([NSDate date].timeIntervalSince1970),
+    @"originalTransaction" : [NSNull null],
+  };
+  self.transaction = [[SKPaymentTransactionStub alloc] initWithMap:transactionMap];
+
+  NSDictionary *storefrontMap = @{
+    @"countryCode" : @"USA",
+    @"identifier" : @"unique_identifier",
+  };
+  self.storefront = [[SKStorefrontStub alloc] initWithMap:storefrontMap];
+}
+
+- (void)tearDown {
+  self.channel = nil;
+}
+
+- (void)testShouldContinueTransaction {
+  if (@available(iOS 13.0, *)) {
+    FIAPPaymentQueueDelegate *delegate =
+        [[FIAPPaymentQueueDelegate alloc] initWithMethodChannel:self.channel];
+
+    OCMStub([self.channel
+        invokeMethod:@"shouldContinueTransaction"
+           arguments:[FIAObjectTranslator getMapFromSKStorefront:self.storefront
+                                         andSKPaymentTransaction:self.transaction]
+              result:([OCMArg invokeBlockWithArgs:[NSNumber numberWithBool:NO], nil])]);
+
+    BOOL shouldContinue = [delegate paymentQueue:OCMClassMock(SKPaymentQueue.class)
+                       shouldContinueTransaction:self.transaction
+                                    inStorefront:self.storefront];
+
+    XCTAssertFalse(shouldContinue);
+  }
+}
+
+- (void)testShouldContinueTransaction_should_default_to_yes {
+  if (@available(iOS 13.0, *)) {
+    FIAPPaymentQueueDelegate *delegate =
+        [[FIAPPaymentQueueDelegate alloc] initWithMethodChannel:self.channel];
+
+    OCMStub([self.channel invokeMethod:@"shouldContinueTransaction"
+                             arguments:[FIAObjectTranslator getMapFromSKStorefront:self.storefront
+                                                           andSKPaymentTransaction:self.transaction]
+                                result:[OCMArg any]]);
+
+    BOOL shouldContinue = [delegate paymentQueue:OCMClassMock(SKPaymentQueue.class)
+                       shouldContinueTransaction:self.transaction
+                                    inStorefront:self.storefront];
+
+    XCTAssertTrue(shouldContinue);
+  }
+}
+
+- (void)testShouldShowPriceConsentIfNeeded {
+  if (@available(iOS 13.4, *)) {
+    FIAPPaymentQueueDelegate *delegate =
+        [[FIAPPaymentQueueDelegate alloc] initWithMethodChannel:self.channel];
+
+    OCMStub([self.channel
+        invokeMethod:@"shouldShowPriceConsent"
+           arguments:nil
+              result:([OCMArg invokeBlockWithArgs:[NSNumber numberWithBool:NO], nil])]);
+
+    BOOL shouldShow =
+        [delegate paymentQueueShouldShowPriceConsent:OCMClassMock(SKPaymentQueue.class)];
+
+    XCTAssertFalse(shouldShow);
+  }
+}
+
+- (void)testShouldShowPriceConsentIfNeeded_should_default_to_yes {
+  if (@available(iOS 13.4, *)) {
+    FIAPPaymentQueueDelegate *delegate =
+        [[FIAPPaymentQueueDelegate alloc] initWithMethodChannel:self.channel];
+
+    OCMStub([self.channel invokeMethod:@"shouldShowPriceConsent"
+                             arguments:nil
+                                result:[OCMArg any]]);
+
+    BOOL shouldShow =
+        [delegate paymentQueueShouldShowPriceConsent:OCMClassMock(SKPaymentQueue.class)];
+
+    XCTAssertTrue(shouldShow);
+  }
+}
+
+@end