Implement clipboard features in views textfield.

views/controls/textfield/textfield_views_model_unittest.cc

Index: views/controls/textfield/textfield_views_model_unittest.cc
diff --git a/views/controls/textfield/textfield_views_model_unittest.cc b/views/controls/textfield/textfield_views_model_unittest.cc
index fa09efa745fda63c7676143574b4f0622d282434..388c8c3953fb7e8bd6448f72036c251013c2af26 100644
--- a/views/controls/textfield/textfield_views_model_unittest.cc
+++ b/views/controls/textfield/textfield_views_model_unittest.cc
@@ -2,9 +2,15 @@
 // 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 {
 
@@ -282,4 +288,57 @@ TEST(TextfieldViewsModelTest, SetText) {
   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