Implement clipboard features in views textfield.

views/controls/textfield/textfield_views_model_unittest.cc

 // Copyright (c) 2010 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.
 
+#include "base/message_loop.h"
+#include "base/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/clipboard/clipboard.h"
+#include "ui/base/clipboard/scoped_clipboard_writer.h"
 #include "views/controls/textfield/textfield_views_model.h"
+#include "views/test/test_views_delegate.h"
+#include "views/views_delegate.h"
 
 namespace views {
 
 #define EXPECT_STR_EQ(ascii, utf16) \
   EXPECT_EQ(ASCIIToWide(ascii), UTF16ToWide(utf16))
 
 TEST(TextfieldViewsModelTest, EditString) {
   TextfieldViewsModel model;
   // append two strings
   model.Append(ASCIIToUTF16("HILL"));
@@ skipping 257 matching lines @@
   model.MoveCursorToEnd(false);
   EXPECT_EQ(7U, model.cursor_pos());
 
   model.SetText(ASCIIToUTF16("BYE"));
   EXPECT_EQ(3U, model.cursor_pos());
   EXPECT_EQ(string16(), model.GetSelectedText());
   model.SetText(ASCIIToUTF16(""));
   EXPECT_EQ(0U, model.cursor_pos());
 }
 
+TEST(TextfieldViewsModelTest, Clipboard) {
+  views::ViewsDelegate::views_delegate = new TestViewsDelegate();
+  ui::Clipboard* clipboard
+      = views::ViewsDelegate::views_delegate->GetClipboard();
+  string16 initial_clipboard_text;
+  clipboard->ReadText(ui::Clipboard::BUFFER_STANDARD, &initial_clipboard_text);
+  string16 clipboard_text;
+  TextfieldViewsModel model;
+  model.Append(ASCIIToUTF16("HELLO WORLD"));
+  model.MoveCursorToEnd(false);
+
+  // Test for cut: Empty selection.
+  EXPECT_FALSE(model.Cut());
+  clipboard->ReadText(ui::Clipboard::BUFFER_STANDARD, &clipboard_text);
+  EXPECT_STR_EQ(UTF16ToUTF8(initial_clipboard_text), clipboard_text);
+  EXPECT_STR_EQ("HELLO WORLD", model.text());
+  EXPECT_EQ(11U, model.cursor_pos());
+
+  // Test for cut: Non-empty selection.
+  model.MoveCursorToPreviousWord(true);
+  EXPECT_TRUE(model.Cut());
+  clipboard->ReadText(ui::Clipboard::BUFFER_STANDARD, &clipboard_text);
+  EXPECT_STR_EQ("WORLD", clipboard_text);
+  EXPECT_STR_EQ("HELLO ", model.text());
+  EXPECT_EQ(6U, model.cursor_pos());
+
+  // Test for copy: Empty selection.
+  model.Copy();
+  clipboard->ReadText(ui::Clipboard::BUFFER_STANDARD, &clipboard_text);
+  EXPECT_STR_EQ("WORLD", clipboard_text);
+  EXPECT_STR_EQ("HELLO ", model.text());
+  EXPECT_EQ(6U, model.cursor_pos());
+
+  // Test for copy: Non-empty selection.
+  model.Append(ASCIIToUTF16("HELLO WORLD"));
+  model.SelectAll();
+  model.Copy();
+  clipboard->ReadText(ui::Clipboard::BUFFER_STANDARD, &clipboard_text);
+  EXPECT_STR_EQ("HELLO HELLO WORLD", clipboard_text);
+  EXPECT_STR_EQ("HELLO HELLO WORLD", model.text());
+  EXPECT_EQ(0U, model.cursor_pos());
+
+  // Test for paste.
+  model.ClearSelection();
+  model.MoveCursorToEnd(false);
+  model.MoveCursorToPreviousWord(true);
+  EXPECT_TRUE(model.Paste());
+  clipboard->ReadText(ui::Clipboard::BUFFER_STANDARD, &clipboard_text);
+  EXPECT_STR_EQ("HELLO HELLO WORLD", clipboard_text);
+  EXPECT_STR_EQ("HELLO HELLO HELLO HELLO WORLD", model.text());
+  EXPECT_EQ(29U, model.cursor_pos());
+}
+
 }  // namespace views