[ios] TabCollectionItem

ios/clean/chrome/browser/ui/tab_collection/tab_collection_view_controller_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/tab_collection/tab_collection_view_controller.h"
+
+#import "ios/clean/chrome/browser/ui/tab_collection/tab_collection_consumer.h"
+#import "ios/clean/chrome/browser/ui/tab_collection/tab_collection_item.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#import "testing/gtest_mac.h"
+#include "testing/platform_test.h"
+#include "third_party/ocmock/gtest_support.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@interface TestTabCollectionViewController : TabCollectionViewController
+@property(nonatomic, readwrite) NSMutableArray<TabCollectionItem*>* items;
+@end
+
+@implementation TestTabCollectionViewController
+@dynamic items;
+@end
+
+class TabCollectionViewControllerTest : public PlatformTest {
+ public:
+  TabCollectionViewControllerTest() {
+    view_controller_ = [[TestTabCollectionViewController alloc] init];
+    TabCollectionItem* item0 = [[TabCollectionItem alloc] init];
+    item0.title = @"Item0";
+    TabCollectionItem* item1 = [[TabCollectionItem alloc] init];
+    item1.title = @"Item1";
+    view_controller_.items = [@[ item0, item1 ] mutableCopy];
+  }
+
+ protected:
+  TestTabCollectionViewController* view_controller_;
+};
+
+// Tests that an item is inserted.
+TEST_F(TabCollectionViewControllerTest, TestInsertItem) {
+  [view_controller_ insertItem:[[TabCollectionItem alloc] init] atIndex:0];
+  EXPECT_EQ(3, static_cast<int>(view_controller_.items.count));
+}
+
+// Tests that an item is deleted.
+TEST_F(TabCollectionViewControllerTest, TestDeleteItem) {
+  [view_controller_ deleteItemAtIndex:0];
+  EXPECT_EQ(1, static_cast<int>(view_controller_.items.count));
+}
+
+// Tests that an item is moved.
+TEST_F(TabCollectionViewControllerTest, TestMoveItem) {
+  [view_controller_ moveItemFromIndex:0 toIndex:1];
+  EXPECT_NSEQ(@"Item1", view_controller_.items[0].title);
+}
+
+// Tests that an item is replaced.
+TEST_F(TabCollectionViewControllerTest, TestReplaceItem) {
+  TabCollectionItem* item = [[TabCollectionItem alloc] init];
+  item.title = @"NewItem";
+  [view_controller_ replaceItemAtIndex:0 withItem:item];
+  EXPECT_NSEQ(@"NewItem", view_controller_.items[0].title);
+}
+
+// Tests that items are initialized.
+TEST_F(TabCollectionViewControllerTest, TestInitializeItems) {
+  TabCollectionItem* item = [[TabCollectionItem alloc] init];
+  item.title = @"NewItem";
+  [view_controller_ populateItems:@[ item ]];
+  EXPECT_NSEQ(@"NewItem", view_controller_.items[0].title);
+}