[iOS Clean] Wired up ContextMenuCommands.

ios/clean/chrome/browser/ui/context_menu/context_menu_mediator_unittest.mm

 // Copyright 2017 The Chromium 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 "ios/clean/chrome/browser/ui/context_menu/context_menu_mediator.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 #include "base/memory/ptr_util.h"
 #import "ios/clean/chrome/browser/ui/context_menu/context_menu_consumer.h"
+#import "ios/clean/chrome/browser/ui/context_menu/context_menu_context_impl.h"
+#import "ios/web/public/web_state/context_menu_params.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/gtest_mac.h"
 #include "testing/platform_test.h"
+#include "url/gurl.h"
 
 @interface TestConsumer : NSObject<ContextMenuConsumer>
+@property(nonatomic, strong) ContextMenuContext* context;
 @property(nonatomic, copy) NSString* title;
 @property(nonatomic, copy) NSArray<ContextMenuItem*>* items;
+@property(nonatomic, strong) ContextMenuItem* cancelItem;
 @end
 
 @implementation TestConsumer
+@synthesize context = _context;
 @synthesize title = _title;
 @synthesize items = _items;
+@synthesize cancelItem = _cancelItem;
+
+- (void)setContextMenuContext:(ContextMenuContext*)context {
+  self.context = context;
+}
 
 - (void)setContextMenuTitle:(NSString*)title {
   self.title = title;
 }
 
-- (void)setContextMenuItems:(NSArray<ContextMenuItem*>*)items {
+- (void)setContextMenuItems:(NSArray<ContextMenuItem*>*)items
+                 cancelItem:(ContextMenuItem*)cancelItem {
   self.items = items;
+  self.cancelItem = cancelItem;
 }
 
 @end
 
-TEST(ContextMenuMediatorTest, TestTitleAndItems) {
-  // A minimal test -- that once initialized, the mediator has set a non-empty
-  // title on the consumer, and passed a non-empty list of items with non-empty
-  // titles.
+// Tests that the menu title is set properly.
+TEST(ContextMenuMediatorTest, MenuTitle) {
+  // Create a context with |kMenuTitle|.
+  NSString* kMenuTitle = @"Menu Title";
+  web::ContextMenuParams params;
+  params.menu_title.reset(kMenuTitle);
+  ContextMenuContextImpl* context =
+      [[ContextMenuContextImpl alloc] initWithParams:params];
+  // Update the consumer and verify that |kMenuTitle| is set.
   TestConsumer* consumer = [[TestConsumer alloc] init];
-  ContextMenuMediator* mediator =
-      [[ContextMenuMediator alloc] initWithConsumer:consumer];
+  [ContextMenuMediator updateConsumer:consumer withContext:context];
+  EXPECT_NSEQ(kMenuTitle, consumer.title);
+}
 
-  EXPECT_NE(nil, mediator);
+// Tests that the script option is shown for javacript: scheme URLs.
+TEST(ContextMenuMediatorTest, ScriptItem) {
+  // Create a context with |kJavaScriptURL|.
+  GURL kJavaScriptURL("javascript:alert('test');");
+  web::ContextMenuParams params;
+  params.link_url = kJavaScriptURL;
+  ContextMenuContextImpl* context =
+      [[ContextMenuContextImpl alloc] initWithParams:params];
+  // Update the consumer and verify that the script option was added.
+  TestConsumer* consumer = [[TestConsumer alloc] init];
+  [ContextMenuMediator updateConsumer:consumer withContext:context];
+  ContextMenuItem* script_item = [consumer.items firstObject];
+  EXPECT_NSEQ(script_item.title, @"Execute Script");
+}
 
-  EXPECT_NE(0U, consumer.title.length);
-  EXPECT_NE(0U, consumer.items.count);
-
-  for (ContextMenuItem* item in consumer.items) {
-    EXPECT_NE(0U, item.title.length);
+// Tests that the link options are shown for valid link URLs.
+TEST(ContextMenuMediatorTest, LinkItems) {
+  // Create a context with a valid link URL.
+  web::ContextMenuParams params;
+  params.link_url = GURL("http://valid.url.com");
+  ;
+  ContextMenuContextImpl* context =
+      [[ContextMenuContextImpl alloc] initWithParams:params];
+  // Update the consumer and verify that the link options were added.
+  TestConsumer* consumer = [[TestConsumer alloc] init];
+  [ContextMenuMediator updateConsumer:consumer withContext:context];
+  NSArray* link_option_titles = @[
+    @"Open In New Tab",
+    @"Open In New Incognito Tab",
+    @"Copy Link",
+  ];
+  ASSERT_EQ(link_option_titles.count, consumer.items.count);
+  for (NSUInteger i = 0; i < link_option_titles.count; ++i) {
+    EXPECT_NSEQ(link_option_titles[i], consumer.items[i].title);
   }
 }
+
+// Tests that the image options are shown for valid image URLs.
+TEST(ContextMenuMediatorTest, ImageItems) {
+  // Create a context with a valid image URL.
+  web::ContextMenuParams params;
+  params.src_url = GURL("http://valid.url.com");
+  ;
+  ContextMenuContextImpl* context =
+      [[ContextMenuContextImpl alloc] initWithParams:params];
+  // Update the consumer and verify that the image options were added.
+  TestConsumer* consumer = [[TestConsumer alloc] init];
+  [ContextMenuMediator updateConsumer:consumer withContext:context];
+  NSArray* image_option_titles = @[
+    @"Save Image",
+    @"Open Image",
+    @"Open Image In New Tab",
+  ];
+  ASSERT_EQ(image_option_titles.count, consumer.items.count);
+  for (NSUInteger i = 0; i < image_option_titles.count; ++i) {
+    EXPECT_NSEQ(image_option_titles[i], consumer.items[i].title);
+  }
+}
+
+// Tests that the cancel item is always added.
+TEST(ContextMenuMediatorTest, CancelItem) {
+  // Create an empty context; the cancel item should be added regardless.
+  web::ContextMenuParams params;
+  ContextMenuContextImpl* context =
+      [[ContextMenuContextImpl alloc] initWithParams:params];
+  // Update the consumer and verify that the image options were added.
+  TestConsumer* consumer = [[TestConsumer alloc] init];
+  [ContextMenuMediator updateConsumer:consumer withContext:context];
+  EXPECT_NSEQ(@"Cancel", consumer.cancelItem.title);
+}