src/ui/views/controls/textfield/textfield_model_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <vector>
   6
   7 #include "base/auto_reset.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "base/strings/string16.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13 #include "ui/base/clipboard/clipboard.h"
  14 #include "ui/base/clipboard/scoped_clipboard_writer.h"
  15 #include "ui/gfx/range/range.h"
  16 #include "ui/gfx/render_text.h"
  17 #include "ui/views/controls/textfield/textfield.h"
  18 #include "ui/views/controls/textfield/textfield_model.h"
  19 #include "ui/views/test/test_views_delegate.h"
  20 #include "ui/views/test/views_test_base.h"
  21
  22 #if defined(OS_WIN)
  23 #include "base/win/windows_version.h"
  24 #endif
  25
  26 #define EXPECT_STR_EQ(ascii, utf16) EXPECT_EQ(base::ASCIIToUTF16(ascii), utf16)
  27
  28 namespace {
  29
  30 struct WordAndCursor {
  31   WordAndCursor(const wchar_t* w, size_t c) : word(w), cursor(c) {}
  32
  33   const wchar_t* word;
  34   size_t cursor;
  35 };
  36
  37 void MoveCursorTo(views::TextfieldModel& model, size_t pos) {
  38   model.MoveCursorTo(gfx::SelectionModel(pos, gfx::CURSOR_FORWARD));
  39 }
  40
  41 }  // namespace
  42
  43 namespace views {
  44
  45 class TextfieldModelTest : public ViewsTestBase,
  46                            public TextfieldModel::Delegate {
  47  public:
  48   TextfieldModelTest()
  49       : ViewsTestBase(),
  50         composition_text_confirmed_or_cleared_(false) {
  51   }
  52
  53   void OnCompositionTextConfirmedOrCleared() override {
  54     composition_text_confirmed_or_cleared_ = true;
  55   }
  56
  57  protected:
  58   void ResetModel(TextfieldModel* model) const {
  59     model->SetText(base::string16());
  60     model->ClearEditHistory();
  61   }
  62
  63   bool composition_text_confirmed_or_cleared_;
  64
  65  private:
  66   DISALLOW_COPY_AND_ASSIGN(TextfieldModelTest);
  67 };
  68
  69 TEST_F(TextfieldModelTest, EditString) {
  70   TextfieldModel model(NULL);
  71   // Append two strings.
  72   model.Append(base::ASCIIToUTF16("HILL"));
  73   EXPECT_STR_EQ("HILL", model.text());
  74   model.Append(base::ASCIIToUTF16("WORLD"));
  75   EXPECT_STR_EQ("HILLWORLD", model.text());
  76
  77   // Insert "E" and replace "I" with "L" to make "HELLO".
  78   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
  79   model.InsertChar('E');
  80   EXPECT_STR_EQ("HEILLWORLD", model.text());
  81   model.ReplaceChar('L');
  82   EXPECT_STR_EQ("HELLLWORLD", model.text());
  83   model.ReplaceChar('L');
  84   model.ReplaceChar('O');
  85   EXPECT_STR_EQ("HELLOWORLD", model.text());
  86
  87   // Delete 6th char "W", then delete 5th char "O".
  88   EXPECT_EQ(5U, model.GetCursorPosition());
  89   EXPECT_TRUE(model.Delete());
  90   EXPECT_STR_EQ("HELLOORLD", model.text());
  91   EXPECT_TRUE(model.Backspace());
  92   EXPECT_EQ(4U, model.GetCursorPosition());
  93   EXPECT_STR_EQ("HELLORLD", model.text());
  94
  95   // Move the cursor to start; backspace should fail.
  96   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
  97   EXPECT_FALSE(model.Backspace());
  98   EXPECT_STR_EQ("HELLORLD", model.text());
  99   // Move the cursor to the end; delete should fail, but backspace should work.
 100   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 101   EXPECT_FALSE(model.Delete());
 102   EXPECT_STR_EQ("HELLORLD", model.text());
 103   EXPECT_TRUE(model.Backspace());
 104   EXPECT_STR_EQ("HELLORL", model.text());
 105
 106   MoveCursorTo(model, 5);
 107   model.ReplaceText(base::ASCIIToUTF16(" WOR"));
 108   EXPECT_STR_EQ("HELLO WORL", model.text());
 109 }
 110
 111 TEST_F(TextfieldModelTest, EditString_SimpleRTL) {
 112   TextfieldModel model(NULL);
 113   // Append two strings.
 114   model.Append(base::WideToUTF16(L"\x05d0\x05d1\x05d2"));
 115   EXPECT_EQ(base::WideToUTF16(L"\x05d0\x05d1\x05d2"), model.text());
 116   model.Append(base::WideToUTF16(L"\x05e0\x05e1\x05e2"));
 117   EXPECT_EQ(base::WideToUTF16(L"\x05d0\x05d1\x05d2\x05e0\x05e1\x05e2"),
 118             model.text());
 119
 120   // Insert "\x05f0".
 121   MoveCursorTo(model, 1);
 122   model.InsertChar(0x05f0);
 123   EXPECT_EQ(base::WideToUTF16(L"\x05d0\x05f0\x05d1\x05d2\x05e0\x05e1\x05e2"),
 124             model.text());
 125
 126   // Replace "\x05d1" with "\x05f1".
 127   model.ReplaceChar(0x05f1);
 128   EXPECT_EQ(base::WideToUTF16(L"\x05d0\x05f0\x5f1\x05d2\x05e0\x05e1\x05e2"),
 129             model.text());
 130
 131   // Test Delete and backspace.
 132   EXPECT_EQ(3U, model.GetCursorPosition());
 133   EXPECT_TRUE(model.Delete());
 134   EXPECT_EQ(base::WideToUTF16(L"\x05d0\x05f0\x5f1\x05e0\x05e1\x05e2"),
 135             model.text());
 136   EXPECT_TRUE(model.Backspace());
 137   EXPECT_EQ(2U, model.GetCursorPosition());
 138   EXPECT_EQ(base::WideToUTF16(L"\x05d0\x05f0\x05e0\x05e1\x05e2"), model.text());
 139 }
 140
 141 TEST_F(TextfieldModelTest, EditString_ComplexScript) {
 142   // TODO(msw): XP fails due to lack of font support: http://crbug.com/106450
 143   bool on_windows_xp = false;
 144 #if defined(OS_WIN)
 145   on_windows_xp = base::win::GetVersion() < base::win::VERSION_VISTA;
 146 #endif
 147
 148   TextfieldModel model(NULL);
 149
 150   // Append two Hindi strings.
 151   model.Append(base::WideToUTF16(L"\x0915\x093f\x0915\x094d\x0915"));
 152   EXPECT_EQ(base::WideToUTF16(L"\x0915\x093f\x0915\x094d\x0915"), model.text());
 153   model.Append(base::WideToUTF16(L"\x0915\x094d\x092e\x094d"));
 154   EXPECT_EQ(base::WideToUTF16(
 155       L"\x0915\x093f\x0915\x094d\x0915\x0915\x094d\x092e\x094d"), model.text());
 156
 157   if (!on_windows_xp) {
 158     // Ensure the cursor cannot be placed in the middle of a grapheme.
 159     MoveCursorTo(model, 1);
 160     EXPECT_EQ(0U, model.GetCursorPosition());
 161
 162     MoveCursorTo(model, 2);
 163     EXPECT_EQ(2U, model.GetCursorPosition());
 164     model.InsertChar('a');
 165     EXPECT_EQ(base::WideToUTF16(
 166         L"\x0915\x093f\x0061\x0915\x094d\x0915\x0915\x094d\x092e\x094d"),
 167         model.text());
 168
 169     // ReplaceChar will replace the whole grapheme.
 170     model.ReplaceChar('b');
 171     // TODO(xji): temporarily disable in platform Win since the complex script
 172     // characters turned into empty square due to font regression. So, not able
 173     // to test 2 characters belong to the same grapheme.
 174 #if defined(OS_LINUX)
 175     EXPECT_EQ(base::WideToUTF16(
 176         L"\x0915\x093f\x0061\x0062\x0915\x0915\x094d\x092e\x094d"),
 177         model.text());
 178 #endif
 179     EXPECT_EQ(4U, model.GetCursorPosition());
 180   }
 181
 182   // Delete should delete the whole grapheme.
 183   MoveCursorTo(model, 0);
 184   // TODO(xji): temporarily disable in platform Win since the complex script
 185   // characters turned into empty square due to font regression. So, not able
 186   // to test 2 characters belong to the same grapheme.
 187 #if defined(OS_LINUX)
 188   EXPECT_TRUE(model.Delete());
 189   EXPECT_EQ(base::WideToUTF16(L"\x0061\x0062\x0915\x0915\x094d\x092e\x094d"),
 190             model.text());
 191   MoveCursorTo(model, model.text().length());
 192   EXPECT_EQ(model.text().length(), model.GetCursorPosition());
 193   EXPECT_TRUE(model.Backspace());
 194   EXPECT_EQ(base::WideToUTF16(L"\x0061\x0062\x0915\x0915\x094d\x092e"),
 195             model.text());
 196 #endif
 197
 198   // Test cursor position and deletion for Hindi Virama.
 199   model.SetText(base::WideToUTF16(L"\x0D38\x0D4D\x0D15\x0D16\x0D2E"));
 200   MoveCursorTo(model, 0);
 201   EXPECT_EQ(0U, model.GetCursorPosition());
 202
 203   if (!on_windows_xp) {
 204     MoveCursorTo(model, 1);
 205     EXPECT_EQ(0U, model.GetCursorPosition());
 206     MoveCursorTo(model, 3);
 207     EXPECT_EQ(3U, model.GetCursorPosition());
 208   }
 209
 210   // TODO(asvitkine): Temporarily disable the following check on Windows. It
 211   // seems Windows treats "\x0D38\x0D4D\x0D15" as a single grapheme.
 212 #if !defined(OS_WIN)
 213   MoveCursorTo(model, 2);
 214   EXPECT_EQ(2U, model.GetCursorPosition());
 215   EXPECT_TRUE(model.Backspace());
 216   EXPECT_EQ(base::WideToUTF16(L"\x0D38\x0D15\x0D16\x0D2E"), model.text());
 217 #endif
 218
 219   model.SetText(
 220       base::WideToUTF16(L"\x05d5\x05b7\x05D9\x05B0\x05D4\x05B4\x05D9"));
 221   MoveCursorTo(model, 0);
 222   EXPECT_TRUE(model.Delete());
 223   EXPECT_TRUE(model.Delete());
 224   EXPECT_TRUE(model.Delete());
 225   EXPECT_TRUE(model.Delete());
 226   EXPECT_EQ(base::WideToUTF16(L""), model.text());
 227
 228   // The first 2 characters are not strong directionality characters.
 229   model.SetText(
 230       base::WideToUTF16(L"\x002C\x0020\x05D1\x05BC\x05B7\x05E9\x05BC"));
 231   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
 232   EXPECT_TRUE(model.Backspace());
 233   EXPECT_EQ(base::WideToUTF16(L"\x002C\x0020\x05D1\x05BC\x05B7\x05E9"),
 234             model.text());
 235 }
 236
 237 TEST_F(TextfieldModelTest, EmptyString) {
 238   TextfieldModel model(NULL);
 239   EXPECT_EQ(base::string16(), model.text());
 240   EXPECT_EQ(base::string16(), model.GetSelectedText());
 241
 242   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 243   EXPECT_EQ(0U, model.GetCursorPosition());
 244   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 245   EXPECT_EQ(0U, model.GetCursorPosition());
 246
 247   EXPECT_EQ(base::string16(), model.GetSelectedText());
 248
 249   EXPECT_FALSE(model.Delete());
 250   EXPECT_FALSE(model.Backspace());
 251 }
 252
 253 TEST_F(TextfieldModelTest, Selection) {
 254   TextfieldModel model(NULL);
 255   model.Append(base::ASCIIToUTF16("HELLO"));
 256   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
 257   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 258   EXPECT_STR_EQ("E", model.GetSelectedText());
 259   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 260   EXPECT_STR_EQ("EL", model.GetSelectedText());
 261
 262   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, true);
 263   EXPECT_STR_EQ("H", model.GetSelectedText());
 264   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, true);
 265   EXPECT_STR_EQ("ELLO", model.GetSelectedText());
 266   model.ClearSelection();
 267   EXPECT_EQ(base::string16(), model.GetSelectedText());
 268
 269   // SelectAll(false) selects towards the end.
 270   model.SelectAll(false);
 271   EXPECT_STR_EQ("HELLO", model.GetSelectedText());
 272   EXPECT_EQ(gfx::Range(0, 5), model.render_text()->selection());
 273
 274   // SelectAll(true) selects towards the beginning.
 275   model.SelectAll(true);
 276   EXPECT_STR_EQ("HELLO", model.GetSelectedText());
 277   EXPECT_EQ(gfx::Range(5, 0), model.render_text()->selection());
 278
 279   // Select and move cursor.
 280   model.SelectRange(gfx::Range(1U, 3U));
 281   EXPECT_STR_EQ("EL", model.GetSelectedText());
 282   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, false);
 283   EXPECT_EQ(1U, model.GetCursorPosition());
 284   model.SelectRange(gfx::Range(1U, 3U));
 285   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
 286   EXPECT_EQ(3U, model.GetCursorPosition());
 287
 288   // Select all and move cursor.
 289   model.SelectAll(false);
 290   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, false);
 291   EXPECT_EQ(0U, model.GetCursorPosition());
 292   model.SelectAll(false);
 293   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
 294   EXPECT_EQ(5U, model.GetCursorPosition());
 295 }
 296
 297 TEST_F(TextfieldModelTest, Selection_BidiWithNonSpacingMarks) {
 298   // Selection is a logical operation. And it should work with the arrow
 299   // keys doing visual movements, while the selection is logical between
 300   // the (logical) start and end points. Selection is simply defined as
 301   // the portion of text between the logical positions of the start and end
 302   // caret positions.
 303   TextfieldModel model(NULL);
 304   // TODO(xji): temporarily disable in platform Win since the complex script
 305   // characters turned into empty square due to font regression. So, not able
 306   // to test 2 characters belong to the same grapheme.
 307 #if defined(OS_LINUX)
 308   model.Append(base::WideToUTF16(
 309       L"abc\x05E9\x05BC\x05C1\x05B8\x05E0\x05B8" L"def"));
 310   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
 311   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
 312
 313   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 314   EXPECT_EQ(gfx::Range(2, 3), model.render_text()->selection());
 315   EXPECT_EQ(base::WideToUTF16(L"c"), model.GetSelectedText());
 316
 317   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 318   EXPECT_EQ(gfx::Range(2, 7), model.render_text()->selection());
 319   EXPECT_EQ(base::WideToUTF16(L"c\x05E9\x05BC\x05C1\x05B8"),
 320             model.GetSelectedText());
 321
 322   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 323   EXPECT_EQ(gfx::Range(2, 3), model.render_text()->selection());
 324   EXPECT_EQ(base::WideToUTF16(L"c"), model.GetSelectedText());
 325
 326   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 327   EXPECT_EQ(gfx::Range(2, 10), model.render_text()->selection());
 328   EXPECT_EQ(base::WideToUTF16(L"c\x05E9\x05BC\x05C1\x05B8\x05E0\x05B8" L"d"),
 329             model.GetSelectedText());
 330
 331   model.ClearSelection();
 332   EXPECT_EQ(base::string16(), model.GetSelectedText());
 333   model.SelectAll(false);
 334   EXPECT_EQ(
 335       base::WideToUTF16(L"abc\x05E9\x05BC\x05C1\x05B8\x05E0\x05B8" L"def"),
 336       model.GetSelectedText());
 337 #endif
 338
 339   // In case of "aBc", this test shows how to select "aB" or "Bc", assume 'B' is
 340   // an RTL character.
 341   model.SetText(base::WideToUTF16(L"a\x05E9" L"b"));
 342   MoveCursorTo(model, 0);
 343   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 344   EXPECT_EQ(base::WideToUTF16(L"a"), model.GetSelectedText());
 345
 346   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 347   EXPECT_EQ(base::WideToUTF16(L"a"), model.GetSelectedText());
 348
 349   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 350   EXPECT_EQ(base::WideToUTF16(L"a\x05E9" L"b"), model.GetSelectedText());
 351
 352   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
 353   EXPECT_EQ(3U, model.GetCursorPosition());
 354   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 355   EXPECT_EQ(base::WideToUTF16(L"b"), model.GetSelectedText());
 356
 357   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 358   EXPECT_EQ(base::WideToUTF16(L"b"), model.GetSelectedText());
 359
 360   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 361   EXPECT_EQ(base::WideToUTF16(L"a\x05E9" L"b"), model.GetSelectedText());
 362
 363   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
 364   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 365   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 366   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 367   EXPECT_EQ(base::WideToUTF16(L"a\x05E9"), model.GetSelectedText());
 368
 369   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 370   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 371   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 372   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 373   EXPECT_EQ(base::WideToUTF16(L"\x05E9" L"b"), model.GetSelectedText());
 374
 375   model.ClearSelection();
 376   EXPECT_EQ(base::string16(), model.GetSelectedText());
 377   model.SelectAll(false);
 378   EXPECT_EQ(base::WideToUTF16(L"a\x05E9" L"b"), model.GetSelectedText());
 379 }
 380
 381 TEST_F(TextfieldModelTest, SelectionAndEdit) {
 382   TextfieldModel model(NULL);
 383   model.Append(base::ASCIIToUTF16("HELLO"));
 384   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
 385   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 386   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);  // "EL"
 387   EXPECT_TRUE(model.Backspace());
 388   EXPECT_STR_EQ("HLO", model.text());
 389
 390   model.Append(base::ASCIIToUTF16("ILL"));
 391   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 392   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);  // "LO"
 393   EXPECT_TRUE(model.Delete());
 394   EXPECT_STR_EQ("HILL", model.text());
 395   EXPECT_EQ(1U, model.GetCursorPosition());
 396   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);  // "I"
 397   model.InsertChar('E');
 398   EXPECT_STR_EQ("HELL", model.text());
 399   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
 400   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);  // "H"
 401   model.ReplaceChar('B');
 402   EXPECT_STR_EQ("BELL", model.text());
 403   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 404   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 405   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);  // "ELL"
 406   model.ReplaceChar('E');
 407   EXPECT_STR_EQ("BEE", model.text());
 408 }
 409
 410 TEST_F(TextfieldModelTest, Word) {
 411   TextfieldModel model(NULL);
 412   model.Append(
 413       base::ASCIIToUTF16("The answer to Life, the Universe, and Everything"));
 414   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, false);
 415   EXPECT_EQ(3U, model.GetCursorPosition());
 416   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, false);
 417   EXPECT_EQ(10U, model.GetCursorPosition());
 418   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, false);
 419   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, false);
 420   EXPECT_EQ(18U, model.GetCursorPosition());
 421
 422   // Should passes the non word char ','
 423   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, true);
 424   EXPECT_EQ(23U, model.GetCursorPosition());
 425   EXPECT_STR_EQ(", the", model.GetSelectedText());
 426
 427   // Move to the end.
 428   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, true);
 429   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, true);
 430   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, true);
 431   EXPECT_STR_EQ(", the Universe, and Everything", model.GetSelectedText());
 432   // Should be safe to go next word at the end.
 433   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, true);
 434   EXPECT_STR_EQ(", the Universe, and Everything", model.GetSelectedText());
 435   model.InsertChar('2');
 436   EXPECT_EQ(19U, model.GetCursorPosition());
 437
 438   // Now backwards.
 439   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, false);  // leave 2.
 440   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 441   EXPECT_EQ(14U, model.GetCursorPosition());
 442   EXPECT_STR_EQ("Life", model.GetSelectedText());
 443   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 444   EXPECT_STR_EQ("to Life", model.GetSelectedText());
 445   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 446   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 447   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);  // Now at start.
 448   EXPECT_STR_EQ("The answer to Life", model.GetSelectedText());
 449   // Should be safe to go to the previous word at the beginning.
 450   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 451   EXPECT_STR_EQ("The answer to Life", model.GetSelectedText());
 452   model.ReplaceChar('4');
 453   EXPECT_EQ(base::string16(), model.GetSelectedText());
 454   EXPECT_STR_EQ("42", model.text());
 455 }
 456
 457 TEST_F(TextfieldModelTest, SetText) {
 458   TextfieldModel model(NULL);
 459   model.Append(base::ASCIIToUTF16("HELLO"));
 460   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 461   model.SetText(base::ASCIIToUTF16("GOODBYE"));
 462   EXPECT_STR_EQ("GOODBYE", model.text());
 463   // SetText move the cursor to the end of the new text.
 464   EXPECT_EQ(7U, model.GetCursorPosition());
 465   model.SelectAll(false);
 466   EXPECT_STR_EQ("GOODBYE", model.GetSelectedText());
 467   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 468   EXPECT_EQ(7U, model.GetCursorPosition());
 469
 470   model.SetText(base::ASCIIToUTF16("BYE"));
 471   // Setting shorter string moves the cursor to the end of the new string.
 472   EXPECT_EQ(3U, model.GetCursorPosition());
 473   EXPECT_EQ(base::string16(), model.GetSelectedText());
 474   model.SetText(base::string16());
 475   EXPECT_EQ(0U, model.GetCursorPosition());
 476 }
 477
 478 TEST_F(TextfieldModelTest, Clipboard) {
 479   ui::Clipboard* clipboard = ui::Clipboard::GetForCurrentThread();
 480   const base::string16 initial_clipboard_text =
 481       base::ASCIIToUTF16("initial text");
 482   ui::ScopedClipboardWriter(ui::CLIPBOARD_TYPE_COPY_PASTE)
 483       .WriteText(initial_clipboard_text);
 484
 485   base::string16 clipboard_text;
 486   TextfieldModel model(NULL);
 487   model.Append(base::ASCIIToUTF16("HELLO WORLD"));
 488
 489   // Cut with an empty selection should do nothing.
 490   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 491   EXPECT_FALSE(model.Cut());
 492   clipboard->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard_text);
 493   EXPECT_EQ(initial_clipboard_text, clipboard_text);
 494   EXPECT_STR_EQ("HELLO WORLD", model.text());
 495   EXPECT_EQ(11U, model.GetCursorPosition());
 496
 497   // Copy with an empty selection should do nothing.
 498   model.Copy();
 499   clipboard->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard_text);
 500   EXPECT_EQ(initial_clipboard_text, clipboard_text);
 501   EXPECT_STR_EQ("HELLO WORLD", model.text());
 502   EXPECT_EQ(11U, model.GetCursorPosition());
 503
 504   // Cut on obscured (password) text should do nothing.
 505   model.render_text()->SetObscured(true);
 506   model.SelectAll(false);
 507   EXPECT_FALSE(model.Cut());
 508   clipboard->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard_text);
 509   EXPECT_EQ(initial_clipboard_text, clipboard_text);
 510   EXPECT_STR_EQ("HELLO WORLD", model.text());
 511   EXPECT_STR_EQ("HELLO WORLD", model.GetSelectedText());
 512
 513   // Copy on obscured (password) text should do nothing.
 514   model.SelectAll(false);
 515   EXPECT_FALSE(model.Copy());
 516   clipboard->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard_text);
 517   EXPECT_EQ(initial_clipboard_text, clipboard_text);
 518   EXPECT_STR_EQ("HELLO WORLD", model.text());
 519   EXPECT_STR_EQ("HELLO WORLD", model.GetSelectedText());
 520
 521   // Cut with non-empty selection.
 522   model.render_text()->SetObscured(false);
 523   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 524   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 525   EXPECT_TRUE(model.Cut());
 526   clipboard->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard_text);
 527   EXPECT_STR_EQ("WORLD", clipboard_text);
 528   EXPECT_STR_EQ("HELLO ", model.text());
 529   EXPECT_EQ(6U, model.GetCursorPosition());
 530
 531   // Copy with non-empty selection.
 532   model.SelectAll(false);
 533   EXPECT_TRUE(model.Copy());
 534   clipboard->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard_text);
 535   EXPECT_STR_EQ("HELLO ", clipboard_text);
 536   EXPECT_STR_EQ("HELLO ", model.text());
 537   EXPECT_EQ(6U, model.GetCursorPosition());
 538
 539   // Test that paste works regardless of the obscured bit.
 540   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 541   EXPECT_TRUE(model.Paste());
 542   EXPECT_STR_EQ("HELLO HELLO ", model.text());
 543   EXPECT_EQ(12U, model.GetCursorPosition());
 544   model.render_text()->SetObscured(true);
 545   EXPECT_TRUE(model.Paste());
 546   EXPECT_STR_EQ("HELLO HELLO HELLO ", model.text());
 547   EXPECT_EQ(18U, model.GetCursorPosition());
 548 }
 549
 550 static void SelectWordTestVerifier(
 551     const TextfieldModel& model,
 552     const base::string16 &expected_selected_string,
 553     size_t expected_cursor_pos) {
 554   EXPECT_EQ(expected_selected_string, model.GetSelectedText());
 555   EXPECT_EQ(expected_cursor_pos, model.GetCursorPosition());
 556 }
 557
 558 TEST_F(TextfieldModelTest, SelectWordTest) {
 559   TextfieldModel model(NULL);
 560   model.Append(base::ASCIIToUTF16("  HELLO  !!  WO     RLD "));
 561
 562   // Test when cursor is at the beginning.
 563   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
 564   model.SelectWord();
 565   SelectWordTestVerifier(model, base::ASCIIToUTF16("  "), 2U);
 566
 567   // Test when cursor is at the beginning of a word.
 568   MoveCursorTo(model, 2);
 569   model.SelectWord();
 570   SelectWordTestVerifier(model, base::ASCIIToUTF16("HELLO"), 7U);
 571
 572   // Test when cursor is at the end of a word.
 573   MoveCursorTo(model, 15);
 574   model.SelectWord();
 575   SelectWordTestVerifier(model, base::ASCIIToUTF16("     "), 20U);
 576
 577   // Test when cursor is somewhere in a non-alpha-numeric fragment.
 578   for (size_t cursor_pos = 8; cursor_pos < 13U; cursor_pos++) {
 579     MoveCursorTo(model, cursor_pos);
 580     model.SelectWord();
 581     SelectWordTestVerifier(model, base::ASCIIToUTF16("  !!  "), 13U);
 582   }
 583
 584   // Test when cursor is somewhere in a whitespace fragment.
 585   MoveCursorTo(model, 17);
 586   model.SelectWord();
 587   SelectWordTestVerifier(model, base::ASCIIToUTF16("     "), 20U);
 588
 589   // Test when cursor is at the end.
 590   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 591   model.SelectWord();
 592   SelectWordTestVerifier(model, base::ASCIIToUTF16(" "), 24U);
 593 }
 594
 595 // TODO(xji): temporarily disable in platform Win since the complex script
 596 // characters and Chinese characters are turned into empty square due to font
 597 // regression.
 598 #if defined(OS_LINUX)
 599 TEST_F(TextfieldModelTest, SelectWordTest_MixScripts) {
 600   TextfieldModel model(NULL);
 601   std::vector<WordAndCursor> word_and_cursor;
 602   word_and_cursor.push_back(WordAndCursor(L"a\x05d0", 2));
 603   word_and_cursor.push_back(WordAndCursor(L"a\x05d0", 2));
 604   word_and_cursor.push_back(WordAndCursor(L"\x05d1\x05d2", 5));
 605   word_and_cursor.push_back(WordAndCursor(L"\x05d1\x05d2", 5));
 606   word_and_cursor.push_back(WordAndCursor(L" ", 3));
 607   word_and_cursor.push_back(WordAndCursor(L"a\x05d0", 2));
 608   word_and_cursor.push_back(WordAndCursor(L"\x0915\x094d\x0915", 9));
 609   word_and_cursor.push_back(WordAndCursor(L"\x0915\x094d\x0915", 9));
 610   word_and_cursor.push_back(WordAndCursor(L" ", 10));
 611   word_and_cursor.push_back(WordAndCursor(L"\x4E2D\x56FD", 12));
 612   word_and_cursor.push_back(WordAndCursor(L"\x4E2D\x56FD", 12));
 613   word_and_cursor.push_back(WordAndCursor(L"\x82B1", 13));
 614   word_and_cursor.push_back(WordAndCursor(L"\x5929", 14));
 615
 616   // The text consists of Ascii, Hebrew, Hindi with Virama sign, and Chinese.
 617   model.SetText(base::WideToUTF16(L"a\x05d0 \x05d1\x05d2 \x0915\x094d\x0915 "
 618                                   L"\x4E2D\x56FD\x82B1\x5929"));
 619   for (size_t i = 0; i < word_and_cursor.size(); ++i) {
 620     model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
 621     for (size_t j = 0; j < i; ++j)
 622       model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
 623     model.SelectWord();
 624     SelectWordTestVerifier(model, base::WideToUTF16(word_and_cursor[i].word),
 625                            word_and_cursor[i].cursor);
 626   }
 627 }
 628 #endif
 629
 630 TEST_F(TextfieldModelTest, RangeTest) {
 631   TextfieldModel model(NULL);
 632   model.Append(base::ASCIIToUTF16("HELLO WORLD"));
 633   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
 634   gfx::Range range = model.render_text()->selection();
 635   EXPECT_TRUE(range.is_empty());
 636   EXPECT_EQ(0U, range.start());
 637   EXPECT_EQ(0U, range.end());
 638
 639   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, true);
 640   range = model.render_text()->selection();
 641   EXPECT_FALSE(range.is_empty());
 642   EXPECT_FALSE(range.is_reversed());
 643   EXPECT_EQ(0U, range.start());
 644   EXPECT_EQ(5U, range.end());
 645
 646   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 647   range = model.render_text()->selection();
 648   EXPECT_FALSE(range.is_empty());
 649   EXPECT_EQ(0U, range.start());
 650   EXPECT_EQ(4U, range.end());
 651
 652   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 653   range = model.render_text()->selection();
 654   EXPECT_TRUE(range.is_empty());
 655   EXPECT_EQ(0U, range.start());
 656   EXPECT_EQ(0U, range.end());
 657
 658   // now from the end.
 659   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 660   range = model.render_text()->selection();
 661   EXPECT_TRUE(range.is_empty());
 662   EXPECT_EQ(11U, range.start());
 663   EXPECT_EQ(11U, range.end());
 664
 665   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 666   range = model.render_text()->selection();
 667   EXPECT_FALSE(range.is_empty());
 668   EXPECT_TRUE(range.is_reversed());
 669   EXPECT_EQ(11U, range.start());
 670   EXPECT_EQ(6U, range.end());
 671
 672   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 673   range = model.render_text()->selection();
 674   EXPECT_FALSE(range.is_empty());
 675   EXPECT_TRUE(range.is_reversed());
 676   EXPECT_EQ(11U, range.start());
 677   EXPECT_EQ(7U, range.end());
 678
 679   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, true);
 680   range = model.render_text()->selection();
 681   EXPECT_TRUE(range.is_empty());
 682   EXPECT_EQ(11U, range.start());
 683   EXPECT_EQ(11U, range.end());
 684
 685   // Select All
 686   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, true);
 687   range = model.render_text()->selection();
 688   EXPECT_FALSE(range.is_empty());
 689   EXPECT_TRUE(range.is_reversed());
 690   EXPECT_EQ(11U, range.start());
 691   EXPECT_EQ(0U, range.end());
 692 }
 693
 694 TEST_F(TextfieldModelTest, SelectRangeTest) {
 695   TextfieldModel model(NULL);
 696   model.Append(base::ASCIIToUTF16("HELLO WORLD"));
 697   gfx::Range range(0, 6);
 698   EXPECT_FALSE(range.is_reversed());
 699   model.SelectRange(range);
 700   EXPECT_STR_EQ("HELLO ", model.GetSelectedText());
 701
 702   range = gfx::Range(6, 1);
 703   EXPECT_TRUE(range.is_reversed());
 704   model.SelectRange(range);
 705   EXPECT_STR_EQ("ELLO ", model.GetSelectedText());
 706
 707   range = gfx::Range(2, 1000);
 708   EXPECT_FALSE(range.is_reversed());
 709   model.SelectRange(range);
 710   EXPECT_STR_EQ("LLO WORLD", model.GetSelectedText());
 711
 712   range = gfx::Range(1000, 3);
 713   EXPECT_TRUE(range.is_reversed());
 714   model.SelectRange(range);
 715   EXPECT_STR_EQ("LO WORLD", model.GetSelectedText());
 716
 717   range = gfx::Range(0, 0);
 718   EXPECT_TRUE(range.is_empty());
 719   model.SelectRange(range);
 720   EXPECT_TRUE(model.GetSelectedText().empty());
 721
 722   range = gfx::Range(3, 3);
 723   EXPECT_TRUE(range.is_empty());
 724   model.SelectRange(range);
 725   EXPECT_TRUE(model.GetSelectedText().empty());
 726
 727   range = gfx::Range(1000, 100);
 728   EXPECT_FALSE(range.is_empty());
 729   model.SelectRange(range);
 730   EXPECT_TRUE(model.GetSelectedText().empty());
 731
 732   range = gfx::Range(1000, 1000);
 733   EXPECT_TRUE(range.is_empty());
 734   model.SelectRange(range);
 735   EXPECT_TRUE(model.GetSelectedText().empty());
 736 }
 737
 738 TEST_F(TextfieldModelTest, SelectionTest) {
 739   TextfieldModel model(NULL);
 740   model.Append(base::ASCIIToUTF16("HELLO WORLD"));
 741   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
 742   gfx::Range selection = model.render_text()->selection();
 743   EXPECT_EQ(gfx::Range(0), selection);
 744
 745   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, true);
 746   selection = model.render_text()->selection();
 747   EXPECT_EQ(gfx::Range(0, 5), selection);
 748
 749   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 750   selection = model.render_text()->selection();
 751   EXPECT_EQ(gfx::Range(0, 4), selection);
 752
 753   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 754   selection = model.render_text()->selection();
 755   EXPECT_EQ(gfx::Range(0), selection);
 756
 757   // now from the end.
 758   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 759   selection = model.render_text()->selection();
 760   EXPECT_EQ(gfx::Range(11), selection);
 761
 762   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, true);
 763   selection = model.render_text()->selection();
 764   EXPECT_EQ(gfx::Range(11, 6), selection);
 765
 766   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, true);
 767   selection = model.render_text()->selection();
 768   EXPECT_EQ(gfx::Range(11, 7), selection);
 769
 770   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, true);
 771   selection = model.render_text()->selection();
 772   EXPECT_EQ(gfx::Range(11), selection);
 773
 774   // Select All
 775   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, true);
 776   selection = model.render_text()->selection();
 777   EXPECT_EQ(gfx::Range(11, 0), selection);
 778 }
 779
 780 TEST_F(TextfieldModelTest, SelectSelectionModelTest) {
 781   TextfieldModel model(NULL);
 782   model.Append(base::ASCIIToUTF16("HELLO WORLD"));
 783   model.SelectSelectionModel(gfx::SelectionModel(gfx::Range(0, 6),
 784       gfx::CURSOR_BACKWARD));
 785   EXPECT_STR_EQ("HELLO ", model.GetSelectedText());
 786
 787   model.SelectSelectionModel(gfx::SelectionModel(gfx::Range(6, 1),
 788       gfx::CURSOR_FORWARD));
 789   EXPECT_STR_EQ("ELLO ", model.GetSelectedText());
 790
 791   model.SelectSelectionModel(gfx::SelectionModel(gfx::Range(2, 1000),
 792       gfx::CURSOR_BACKWARD));
 793   EXPECT_STR_EQ("LLO WORLD", model.GetSelectedText());
 794
 795   model.SelectSelectionModel(gfx::SelectionModel(gfx::Range(1000, 3),
 796       gfx::CURSOR_FORWARD));
 797   EXPECT_STR_EQ("LO WORLD", model.GetSelectedText());
 798
 799   model.SelectSelectionModel(gfx::SelectionModel(0, gfx::CURSOR_FORWARD));
 800   EXPECT_TRUE(model.GetSelectedText().empty());
 801
 802   model.SelectSelectionModel(gfx::SelectionModel(3, gfx::CURSOR_FORWARD));
 803   EXPECT_TRUE(model.GetSelectedText().empty());
 804
 805   model.SelectSelectionModel(gfx::SelectionModel(gfx::Range(1000, 100),
 806       gfx::CURSOR_FORWARD));
 807   EXPECT_TRUE(model.GetSelectedText().empty());
 808
 809   model.SelectSelectionModel(gfx::SelectionModel(1000, gfx::CURSOR_BACKWARD));
 810   EXPECT_TRUE(model.GetSelectedText().empty());
 811 }
 812
 813 TEST_F(TextfieldModelTest, CompositionTextTest) {
 814   TextfieldModel model(this);
 815   model.Append(base::ASCIIToUTF16("1234590"));
 816   model.SelectRange(gfx::Range(5, 5));
 817   EXPECT_FALSE(model.HasSelection());
 818   EXPECT_EQ(5U, model.GetCursorPosition());
 819
 820   gfx::Range range;
 821   model.GetTextRange(&range);
 822   EXPECT_EQ(gfx::Range(0, 7), range);
 823
 824   ui::CompositionText composition;
 825   composition.text = base::ASCIIToUTF16("678");
 826   composition.underlines.push_back(ui::CompositionUnderline(0, 3, 0, false));
 827
 828   // Cursor should be at the end of composition when characters are just typed.
 829   composition.selection = gfx::Range(3, 3);
 830   model.SetCompositionText(composition);
 831   EXPECT_TRUE(model.HasCompositionText());
 832   EXPECT_FALSE(model.HasSelection());
 833
 834   // Cancel the composition.
 835   model.CancelCompositionText();
 836   composition_text_confirmed_or_cleared_ = false;
 837
 838   // Restart composition with targeting "67" in "678".
 839   composition.selection = gfx::Range(0, 2);
 840   composition.underlines.clear();
 841   composition.underlines.push_back(ui::CompositionUnderline(0, 2, 0, true));
 842   composition.underlines.push_back(ui::CompositionUnderline(2, 3, 0, false));
 843   model.SetCompositionText(composition);
 844   EXPECT_TRUE(model.HasCompositionText());
 845   EXPECT_TRUE(model.HasSelection());
 846   EXPECT_EQ(gfx::Range(5, 7), model.render_text()->selection());
 847
 848   model.GetTextRange(&range);
 849   EXPECT_EQ(10U, range.end());
 850   EXPECT_STR_EQ("1234567890", model.text());
 851
 852   model.GetCompositionTextRange(&range);
 853   EXPECT_EQ(gfx::Range(5, 8), range);
 854   // Check the composition text.
 855   EXPECT_STR_EQ("456", model.GetTextFromRange(gfx::Range(3, 6)));
 856   EXPECT_EQ(gfx::Range(5, 7), model.render_text()->selection());
 857
 858   EXPECT_FALSE(composition_text_confirmed_or_cleared_);
 859   model.CancelCompositionText();
 860   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 861   composition_text_confirmed_or_cleared_ = false;
 862   EXPECT_FALSE(model.HasCompositionText());
 863   EXPECT_FALSE(model.HasSelection());
 864   EXPECT_EQ(5U, model.GetCursorPosition());
 865
 866   model.SetCompositionText(composition);
 867   EXPECT_STR_EQ("1234567890", model.text());
 868   EXPECT_TRUE(model.SetText(base::ASCIIToUTF16("1234567890")));
 869   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 870   composition_text_confirmed_or_cleared_ = false;
 871   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 872
 873   model.SetCompositionText(composition);
 874   EXPECT_STR_EQ("1234567890678", model.text());
 875
 876   model.InsertText(base::UTF8ToUTF16("-"));
 877   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 878   composition_text_confirmed_or_cleared_ = false;
 879   EXPECT_STR_EQ("1234567890-", model.text());
 880   EXPECT_FALSE(model.HasCompositionText());
 881   EXPECT_FALSE(model.HasSelection());
 882
 883   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, true);
 884   EXPECT_STR_EQ("-", model.GetSelectedText());
 885   model.SetCompositionText(composition);
 886   EXPECT_STR_EQ("1234567890678", model.text());
 887
 888   model.ReplaceText(base::UTF8ToUTF16("-"));
 889   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 890   composition_text_confirmed_or_cleared_ = false;
 891   EXPECT_STR_EQ("1234567890-", model.text());
 892   EXPECT_FALSE(model.HasCompositionText());
 893   EXPECT_FALSE(model.HasSelection());
 894
 895   model.SetCompositionText(composition);
 896   model.Append(base::UTF8ToUTF16("-"));
 897   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 898   composition_text_confirmed_or_cleared_ = false;
 899   EXPECT_STR_EQ("1234567890-678-", model.text());
 900
 901   model.SetCompositionText(composition);
 902   model.Delete();
 903   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 904   composition_text_confirmed_or_cleared_ = false;
 905   EXPECT_STR_EQ("1234567890-678-", model.text());
 906
 907   model.SetCompositionText(composition);
 908   model.Backspace();
 909   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 910   composition_text_confirmed_or_cleared_ = false;
 911   EXPECT_STR_EQ("1234567890-678-", model.text());
 912
 913   model.SetText(base::string16());
 914   model.SetCompositionText(composition);
 915   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, false);
 916   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 917   composition_text_confirmed_or_cleared_ = false;
 918   EXPECT_STR_EQ("678", model.text());
 919   EXPECT_EQ(2U, model.GetCursorPosition());
 920
 921   model.SetCompositionText(composition);
 922   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
 923   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 924   composition_text_confirmed_or_cleared_ = false;
 925   EXPECT_STR_EQ("676788", model.text());
 926   EXPECT_EQ(6U, model.GetCursorPosition());
 927
 928   model.SetCompositionText(composition);
 929   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_LEFT, false);
 930   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 931   composition_text_confirmed_or_cleared_ = false;
 932   EXPECT_STR_EQ("676788678", model.text());
 933
 934   model.SetText(base::string16());
 935   model.SetCompositionText(composition);
 936   model.MoveCursor(gfx::WORD_BREAK, gfx::CURSOR_RIGHT, false);
 937   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 938   composition_text_confirmed_or_cleared_ = false;
 939
 940   model.SetCompositionText(composition);
 941   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, true);
 942   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 943   composition_text_confirmed_or_cleared_ = false;
 944   EXPECT_STR_EQ("678678", model.text());
 945
 946   model.SetCompositionText(composition);
 947   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
 948   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 949   composition_text_confirmed_or_cleared_ = false;
 950   EXPECT_STR_EQ("678", model.text());
 951
 952   model.SetCompositionText(composition);
 953   gfx::SelectionModel sel(
 954       gfx::Range(model.render_text()->selection().start(), 0),
 955       gfx::CURSOR_FORWARD);
 956   model.MoveCursorTo(sel);
 957   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 958   composition_text_confirmed_or_cleared_ = false;
 959   EXPECT_STR_EQ("678678", model.text());
 960
 961   model.SetCompositionText(composition);
 962   model.SelectRange(gfx::Range(0, 3));
 963   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 964   composition_text_confirmed_or_cleared_ = false;
 965   EXPECT_STR_EQ("678", model.text());
 966
 967   model.SetCompositionText(composition);
 968   model.SelectAll(false);
 969   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 970   composition_text_confirmed_or_cleared_ = false;
 971   EXPECT_STR_EQ("678", model.text());
 972
 973   model.SetCompositionText(composition);
 974   model.SelectWord();
 975   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 976   composition_text_confirmed_or_cleared_ = false;
 977   EXPECT_STR_EQ("678", model.text());
 978
 979   model.SetCompositionText(composition);
 980   model.ClearSelection();
 981   EXPECT_TRUE(composition_text_confirmed_or_cleared_);
 982   composition_text_confirmed_or_cleared_ = false;
 983
 984   model.SetCompositionText(composition);
 985   EXPECT_FALSE(model.Cut());
 986   EXPECT_FALSE(composition_text_confirmed_or_cleared_);
 987 }
 988
 989 TEST_F(TextfieldModelTest, UndoRedo_BasicTest) {
 990   TextfieldModel model(NULL);
 991   model.InsertChar('a');
 992   EXPECT_FALSE(model.Redo());  // There is nothing to redo.
 993   EXPECT_TRUE(model.Undo());
 994   EXPECT_STR_EQ("", model.text());
 995   EXPECT_TRUE(model.Redo());
 996   EXPECT_STR_EQ("a", model.text());
 997
 998   // Continuous inserts are treated as one edit.
 999   model.InsertChar('b');
1000   model.InsertChar('c');
1001   EXPECT_STR_EQ("abc", model.text());
1002   EXPECT_TRUE(model.Undo());
1003   EXPECT_STR_EQ("a", model.text());
1004   EXPECT_EQ(1U, model.GetCursorPosition());
1005   EXPECT_TRUE(model.Undo());
1006   EXPECT_STR_EQ("", model.text());
1007   EXPECT_EQ(0U, model.GetCursorPosition());
1008
1009   // Undoing further shouldn't change the text.
1010   EXPECT_FALSE(model.Undo());
1011   EXPECT_STR_EQ("", model.text());
1012   EXPECT_FALSE(model.Undo());
1013   EXPECT_STR_EQ("", model.text());
1014   EXPECT_EQ(0U, model.GetCursorPosition());
1015
1016   // Redoing to the latest text.
1017   EXPECT_TRUE(model.Redo());
1018   EXPECT_STR_EQ("a", model.text());
1019   EXPECT_EQ(1U, model.GetCursorPosition());
1020   EXPECT_TRUE(model.Redo());
1021   EXPECT_STR_EQ("abc", model.text());
1022   EXPECT_EQ(3U, model.GetCursorPosition());
1023
1024   // Backspace ===============================
1025   EXPECT_TRUE(model.Backspace());
1026   EXPECT_STR_EQ("ab", model.text());
1027   EXPECT_TRUE(model.Undo());
1028   EXPECT_STR_EQ("abc", model.text());
1029   EXPECT_EQ(3U, model.GetCursorPosition());
1030   EXPECT_TRUE(model.Redo());
1031   EXPECT_STR_EQ("ab", model.text());
1032   EXPECT_EQ(2U, model.GetCursorPosition());
1033   // Continous backspaces are treated as one edit.
1034   EXPECT_TRUE(model.Backspace());
1035   EXPECT_TRUE(model.Backspace());
1036   EXPECT_STR_EQ("", model.text());
1037   // Extra backspace shouldn't affect the history.
1038   EXPECT_FALSE(model.Backspace());
1039   EXPECT_TRUE(model.Undo());
1040   EXPECT_STR_EQ("ab", model.text());
1041   EXPECT_EQ(2U, model.GetCursorPosition());
1042   EXPECT_TRUE(model.Undo());
1043   EXPECT_STR_EQ("abc", model.text());
1044   EXPECT_EQ(3U, model.GetCursorPosition());
1045   EXPECT_TRUE(model.Undo());
1046   EXPECT_STR_EQ("a", model.text());
1047   EXPECT_EQ(1U, model.GetCursorPosition());
1048
1049   // Clear history
1050   model.ClearEditHistory();
1051   EXPECT_FALSE(model.Undo());
1052   EXPECT_FALSE(model.Redo());
1053   EXPECT_STR_EQ("a", model.text());
1054   EXPECT_EQ(1U, model.GetCursorPosition());
1055
1056   // Delete ===============================
1057   model.SetText(base::ASCIIToUTF16("ABCDE"));
1058   model.ClearEditHistory();
1059   MoveCursorTo(model, 2);
1060   EXPECT_TRUE(model.Delete());
1061   EXPECT_STR_EQ("ABDE", model.text());
1062   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
1063   EXPECT_TRUE(model.Delete());
1064   EXPECT_STR_EQ("BDE", model.text());
1065   EXPECT_TRUE(model.Undo());
1066   EXPECT_STR_EQ("ABDE", model.text());
1067   EXPECT_EQ(0U, model.GetCursorPosition());
1068   EXPECT_TRUE(model.Undo());
1069   EXPECT_STR_EQ("ABCDE", model.text());
1070   EXPECT_EQ(2U, model.GetCursorPosition());
1071   EXPECT_TRUE(model.Redo());
1072   EXPECT_STR_EQ("ABDE", model.text());
1073   EXPECT_EQ(2U, model.GetCursorPosition());
1074   // Continous deletes are treated as one edit.
1075   EXPECT_TRUE(model.Delete());
1076   EXPECT_TRUE(model.Delete());
1077   EXPECT_STR_EQ("AB", model.text());
1078   EXPECT_TRUE(model.Undo());
1079   EXPECT_STR_EQ("ABDE", model.text());
1080   EXPECT_EQ(2U, model.GetCursorPosition());
1081   EXPECT_TRUE(model.Redo());
1082   EXPECT_STR_EQ("AB", model.text());
1083   EXPECT_EQ(2U, model.GetCursorPosition());
1084 }
1085
1086 TEST_F(TextfieldModelTest, UndoRedo_SetText) {
1087   // This is to test the undo/redo behavior of omnibox.
1088   TextfieldModel model(NULL);
1089   model.InsertChar('w');
1090   EXPECT_STR_EQ("w", model.text());
1091   EXPECT_EQ(1U, model.GetCursorPosition());
1092   model.SetText(base::ASCIIToUTF16("www.google.com"));
1093   EXPECT_EQ(14U, model.GetCursorPosition());
1094   EXPECT_STR_EQ("www.google.com", model.text());
1095   model.SelectRange(gfx::Range(14, 1));
1096   model.InsertChar('w');
1097   EXPECT_STR_EQ("ww", model.text());
1098   model.SetText(base::ASCIIToUTF16("www.google.com"));
1099   model.SelectRange(gfx::Range(14, 2));
1100   model.InsertChar('w');
1101   EXPECT_STR_EQ("www", model.text());
1102   model.SetText(base::ASCIIToUTF16("www.google.com"));
1103   model.SelectRange(gfx::Range(14, 3));
1104   model.InsertChar('.');
1105   EXPECT_STR_EQ("www.", model.text());
1106   model.SetText(base::ASCIIToUTF16("www.google.com"));
1107   model.SelectRange(gfx::Range(14, 4));
1108   model.InsertChar('y');
1109   EXPECT_STR_EQ("www.y", model.text());
1110   model.SetText(base::ASCIIToUTF16("www.youtube.com"));
1111   EXPECT_STR_EQ("www.youtube.com", model.text());
1112   EXPECT_EQ(15U, model.GetCursorPosition());
1113
1114   EXPECT_TRUE(model.Undo());
1115   EXPECT_STR_EQ("www.google.com", model.text());
1116   EXPECT_EQ(4U, model.GetCursorPosition());
1117   EXPECT_TRUE(model.Undo());
1118   EXPECT_STR_EQ("www.google.com", model.text());
1119   EXPECT_EQ(3U, model.GetCursorPosition());
1120   EXPECT_TRUE(model.Undo());
1121   EXPECT_STR_EQ("www.google.com", model.text());
1122   EXPECT_EQ(2U, model.GetCursorPosition());
1123   EXPECT_TRUE(model.Undo());
1124   EXPECT_STR_EQ("www.google.com", model.text());
1125   EXPECT_EQ(1U, model.GetCursorPosition());
1126   EXPECT_TRUE(model.Undo());
1127   EXPECT_STR_EQ("", model.text());
1128   EXPECT_EQ(0U, model.GetCursorPosition());
1129   EXPECT_FALSE(model.Undo());
1130   EXPECT_TRUE(model.Redo());
1131   EXPECT_STR_EQ("www.google.com", model.text());
1132   EXPECT_EQ(1U, model.GetCursorPosition());
1133   EXPECT_TRUE(model.Redo());
1134   EXPECT_STR_EQ("www.google.com", model.text());
1135   EXPECT_EQ(2U, model.GetCursorPosition());
1136   EXPECT_TRUE(model.Redo());
1137   EXPECT_STR_EQ("www.google.com", model.text());
1138   EXPECT_EQ(3U, model.GetCursorPosition());
1139   EXPECT_TRUE(model.Redo());
1140   EXPECT_STR_EQ("www.google.com", model.text());
1141   EXPECT_EQ(4U, model.GetCursorPosition());
1142   EXPECT_TRUE(model.Redo());
1143   EXPECT_STR_EQ("www.youtube.com", model.text());
1144   EXPECT_EQ(5U, model.GetCursorPosition());
1145   EXPECT_FALSE(model.Redo());
1146 }
1147
1148 TEST_F(TextfieldModelTest, UndoRedo_BackspaceThenSetText) {
1149   // This is to test the undo/redo behavior of omnibox.
1150   TextfieldModel model(NULL);
1151   model.InsertChar('w');
1152   EXPECT_STR_EQ("w", model.text());
1153   EXPECT_EQ(1U, model.GetCursorPosition());
1154   model.SetText(base::ASCIIToUTF16("www.google.com"));
1155   EXPECT_EQ(14U, model.GetCursorPosition());
1156   EXPECT_STR_EQ("www.google.com", model.text());
1157   model.SetText(base::ASCIIToUTF16("www.google.com"));  // Confirm the text.
1158   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
1159   EXPECT_EQ(14U, model.GetCursorPosition());
1160   EXPECT_TRUE(model.Backspace());
1161   EXPECT_TRUE(model.Backspace());
1162   EXPECT_STR_EQ("www.google.c", model.text());
1163   // Autocomplete sets the text.
1164   model.SetText(base::ASCIIToUTF16("www.google.com/search=www.google.c"));
1165   EXPECT_STR_EQ("www.google.com/search=www.google.c", model.text());
1166   EXPECT_TRUE(model.Undo());
1167   EXPECT_STR_EQ("www.google.c", model.text());
1168   EXPECT_TRUE(model.Undo());
1169   EXPECT_STR_EQ("www.google.com", model.text());
1170 }
1171
1172 TEST_F(TextfieldModelTest, UndoRedo_CutCopyPasteTest) {
1173   TextfieldModel model(NULL);
1174   model.SetText(base::ASCIIToUTF16("ABCDE"));
1175   EXPECT_FALSE(model.Redo());  // There is nothing to redo.
1176   // Test Cut.
1177   model.SelectRange(gfx::Range(1, 3));
1178   model.Cut();
1179   EXPECT_STR_EQ("ADE", model.text());
1180   EXPECT_EQ(1U, model.GetCursorPosition());
1181   EXPECT_TRUE(model.Undo());
1182   EXPECT_STR_EQ("ABCDE", model.text());
1183   EXPECT_EQ(3U, model.GetCursorPosition());
1184   EXPECT_TRUE(model.Undo());
1185   EXPECT_STR_EQ("", model.text());
1186   EXPECT_EQ(0U, model.GetCursorPosition());
1187   EXPECT_FALSE(model.Undo());  // There is no more to undo.
1188   EXPECT_STR_EQ("", model.text());
1189   EXPECT_TRUE(model.Redo());
1190   EXPECT_STR_EQ("ABCDE", model.text());
1191   EXPECT_EQ(5U, model.GetCursorPosition());
1192   EXPECT_TRUE(model.Redo());
1193   EXPECT_STR_EQ("ADE", model.text());
1194   EXPECT_EQ(1U, model.GetCursorPosition());
1195   EXPECT_FALSE(model.Redo());  // There is no more to redo.
1196   EXPECT_STR_EQ("ADE", model.text());
1197
1198   model.Paste();
1199   model.Paste();
1200   model.Paste();
1201   EXPECT_STR_EQ("ABCBCBCDE", model.text());
1202   EXPECT_EQ(7U, model.GetCursorPosition());
1203   EXPECT_TRUE(model.Undo());
1204   EXPECT_STR_EQ("ABCBCDE", model.text());
1205   EXPECT_EQ(5U, model.GetCursorPosition());
1206   EXPECT_TRUE(model.Undo());
1207   EXPECT_STR_EQ("ABCDE", model.text());
1208   EXPECT_EQ(3U, model.GetCursorPosition());
1209   EXPECT_TRUE(model.Undo());
1210   EXPECT_STR_EQ("ADE", model.text());
1211   EXPECT_EQ(1U, model.GetCursorPosition());
1212   EXPECT_TRUE(model.Undo());
1213   EXPECT_STR_EQ("ABCDE", model.text());
1214   EXPECT_EQ(3U, model.GetCursorPosition());
1215   EXPECT_TRUE(model.Undo());
1216   EXPECT_STR_EQ("", model.text());
1217   EXPECT_EQ(0U, model.GetCursorPosition());
1218   EXPECT_FALSE(model.Undo());
1219   EXPECT_STR_EQ("", model.text());
1220   EXPECT_TRUE(model.Redo());
1221   EXPECT_STR_EQ("ABCDE", model.text());
1222   EXPECT_EQ(5U, model.GetCursorPosition());
1223
1224   // Test Redo.
1225   EXPECT_TRUE(model.Redo());
1226   EXPECT_STR_EQ("ADE", model.text());
1227   EXPECT_EQ(1U, model.GetCursorPosition());
1228   EXPECT_TRUE(model.Redo());
1229   EXPECT_STR_EQ("ABCDE", model.text());
1230   EXPECT_EQ(3U, model.GetCursorPosition());
1231   EXPECT_TRUE(model.Redo());
1232   EXPECT_STR_EQ("ABCBCDE", model.text());
1233   EXPECT_EQ(5U, model.GetCursorPosition());
1234   EXPECT_TRUE(model.Redo());
1235   EXPECT_STR_EQ("ABCBCBCDE", model.text());
1236   EXPECT_EQ(7U, model.GetCursorPosition());
1237   EXPECT_FALSE(model.Redo());
1238
1239   // Test using SelectRange.
1240   model.SelectRange(gfx::Range(1, 3));
1241   EXPECT_TRUE(model.Cut());
1242   EXPECT_STR_EQ("ABCBCDE", model.text());
1243   EXPECT_EQ(1U, model.GetCursorPosition());
1244   model.SelectRange(gfx::Range(1, 1));
1245   EXPECT_FALSE(model.Cut());
1246   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
1247   EXPECT_TRUE(model.Paste());
1248   EXPECT_STR_EQ("ABCBCDEBC", model.text());
1249   EXPECT_EQ(9U, model.GetCursorPosition());
1250   EXPECT_TRUE(model.Undo());
1251   EXPECT_STR_EQ("ABCBCDE", model.text());
1252   EXPECT_EQ(7U, model.GetCursorPosition());
1253   // An empty cut shouldn't create an edit.
1254   EXPECT_TRUE(model.Undo());
1255   EXPECT_STR_EQ("ABCBCBCDE", model.text());
1256   EXPECT_EQ(3U, model.GetCursorPosition());
1257
1258   // Test Copy.
1259   ResetModel(&model);
1260   model.SetText(base::ASCIIToUTF16("12345"));
1261   EXPECT_STR_EQ("12345", model.text());
1262   EXPECT_EQ(5U, model.GetCursorPosition());
1263   model.SelectRange(gfx::Range(1, 3));
1264   model.Copy();  // Copy "23".
1265   EXPECT_STR_EQ("12345", model.text());
1266   EXPECT_EQ(3U, model.GetCursorPosition());
1267   model.Paste();  // Paste "23" into "23".
1268   EXPECT_STR_EQ("12345", model.text());
1269   EXPECT_EQ(3U, model.GetCursorPosition());
1270   model.Paste();
1271   EXPECT_STR_EQ("1232345", model.text());
1272   EXPECT_EQ(5U, model.GetCursorPosition());
1273   EXPECT_TRUE(model.Undo());
1274   EXPECT_STR_EQ("12345", model.text());
1275   EXPECT_EQ(3U, model.GetCursorPosition());
1276   // TODO(oshima): Change the return type from bool to enum.
1277   EXPECT_FALSE(model.Undo());  // No text change.
1278   EXPECT_STR_EQ("12345", model.text());
1279   EXPECT_EQ(3U, model.GetCursorPosition());
1280   EXPECT_TRUE(model.Undo());
1281   EXPECT_STR_EQ("", model.text());
1282   EXPECT_FALSE(model.Undo());
1283   // Test Redo.
1284   EXPECT_TRUE(model.Redo());
1285   EXPECT_STR_EQ("12345", model.text());
1286   EXPECT_EQ(5U, model.GetCursorPosition());
1287   EXPECT_TRUE(model.Redo());
1288   EXPECT_STR_EQ("12345", model.text());  // For 1st paste
1289   EXPECT_EQ(3U, model.GetCursorPosition());
1290   EXPECT_TRUE(model.Redo());
1291   EXPECT_STR_EQ("1232345", model.text());
1292   EXPECT_EQ(5U, model.GetCursorPosition());
1293   EXPECT_FALSE(model.Redo());
1294   EXPECT_STR_EQ("1232345", model.text());
1295
1296   // Test using SelectRange.
1297   model.SelectRange(gfx::Range(1, 3));
1298   model.Copy();
1299   EXPECT_STR_EQ("1232345", model.text());
1300   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
1301   EXPECT_TRUE(model.Paste());
1302   EXPECT_STR_EQ("123234523", model.text());
1303   EXPECT_EQ(9U, model.GetCursorPosition());
1304   EXPECT_TRUE(model.Undo());
1305   EXPECT_STR_EQ("1232345", model.text());
1306   EXPECT_EQ(7U, model.GetCursorPosition());
1307 }
1308
1309 TEST_F(TextfieldModelTest, UndoRedo_CursorTest) {
1310   TextfieldModel model(NULL);
1311   model.InsertChar('a');
1312   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_LEFT, false);
1313   model.MoveCursor(gfx::CHARACTER_BREAK, gfx::CURSOR_RIGHT, false);
1314   model.InsertChar('b');
1315   // Moving the cursor shouldn't create a new edit.
1316   EXPECT_STR_EQ("ab", model.text());
1317   EXPECT_FALSE(model.Redo());
1318   EXPECT_TRUE(model.Undo());
1319   EXPECT_STR_EQ("", model.text());
1320   EXPECT_FALSE(model.Undo());
1321   EXPECT_STR_EQ("", model.text());
1322   EXPECT_TRUE(model.Redo());
1323   EXPECT_STR_EQ("ab", model.text());
1324   EXPECT_EQ(2U, model.GetCursorPosition());
1325   EXPECT_FALSE(model.Redo());
1326 }
1327
1328 void RunInsertReplaceTest(TextfieldModel& model) {
1329   const bool reverse = model.render_text()->selection().is_reversed();
1330   model.InsertChar('1');
1331   model.InsertChar('2');
1332   model.InsertChar('3');
1333   EXPECT_STR_EQ("a123d", model.text());
1334   EXPECT_EQ(4U, model.GetCursorPosition());
1335   EXPECT_TRUE(model.Undo());
1336   EXPECT_STR_EQ("abcd", model.text());
1337   EXPECT_EQ(reverse ? 1U : 3U, model.GetCursorPosition());
1338   EXPECT_TRUE(model.Undo());
1339   EXPECT_STR_EQ("", model.text());
1340   EXPECT_EQ(0U, model.GetCursorPosition());
1341   EXPECT_FALSE(model.Undo());
1342   EXPECT_TRUE(model.Redo());
1343   EXPECT_STR_EQ("abcd", model.text());
1344   EXPECT_EQ(4U, model.GetCursorPosition());
1345   EXPECT_TRUE(model.Redo());
1346   EXPECT_STR_EQ("a123d", model.text());
1347   EXPECT_EQ(4U, model.GetCursorPosition());
1348   EXPECT_FALSE(model.Redo());
1349 }
1350
1351 void RunOverwriteReplaceTest(TextfieldModel& model) {
1352   const bool reverse = model.render_text()->selection().is_reversed();
1353   model.ReplaceChar('1');
1354   model.ReplaceChar('2');
1355   model.ReplaceChar('3');
1356   model.ReplaceChar('4');
1357   EXPECT_STR_EQ("a1234", model.text());
1358   EXPECT_EQ(5U, model.GetCursorPosition());
1359   EXPECT_TRUE(model.Undo());
1360   EXPECT_STR_EQ("abcd", model.text());
1361   EXPECT_EQ(reverse ? 1U : 3U, model.GetCursorPosition());
1362   EXPECT_TRUE(model.Undo());
1363   EXPECT_STR_EQ("", model.text());
1364   EXPECT_EQ(0U, model.GetCursorPosition());
1365   EXPECT_FALSE(model.Undo());
1366   EXPECT_TRUE(model.Redo());
1367   EXPECT_STR_EQ("abcd", model.text());
1368   EXPECT_EQ(4U, model.GetCursorPosition());
1369   EXPECT_TRUE(model.Redo());
1370   EXPECT_STR_EQ("a1234", model.text());
1371   EXPECT_EQ(5U, model.GetCursorPosition());
1372   EXPECT_FALSE(model.Redo());
1373 }
1374
1375 TEST_F(TextfieldModelTest, UndoRedo_ReplaceTest) {
1376   {
1377     SCOPED_TRACE("Select forwards and insert.");
1378     TextfieldModel model(NULL);
1379     model.SetText(base::ASCIIToUTF16("abcd"));
1380     model.SelectRange(gfx::Range(1, 3));
1381     RunInsertReplaceTest(model);
1382   }
1383   {
1384     SCOPED_TRACE("Select reversed and insert.");
1385     TextfieldModel model(NULL);
1386     model.SetText(base::ASCIIToUTF16("abcd"));
1387     model.SelectRange(gfx::Range(3, 1));
1388     RunInsertReplaceTest(model);
1389   }
1390   {
1391     SCOPED_TRACE("Select forwards and overwrite.");
1392     TextfieldModel model(NULL);
1393     model.SetText(base::ASCIIToUTF16("abcd"));
1394     model.SelectRange(gfx::Range(1, 3));
1395     RunOverwriteReplaceTest(model);
1396   }
1397   {
1398     SCOPED_TRACE("Select reversed and overwrite.");
1399     TextfieldModel model(NULL);
1400     model.SetText(base::ASCIIToUTF16("abcd"));
1401     model.SelectRange(gfx::Range(3, 1));
1402     RunOverwriteReplaceTest(model);
1403   }
1404 }
1405
1406 TEST_F(TextfieldModelTest, UndoRedo_CompositionText) {
1407   TextfieldModel model(NULL);
1408
1409   ui::CompositionText composition;
1410   composition.text = base::ASCIIToUTF16("abc");
1411   composition.underlines.push_back(ui::CompositionUnderline(0, 3, 0, false));
1412   composition.selection = gfx::Range(2, 3);
1413
1414   model.SetText(base::ASCIIToUTF16("ABCDE"));
1415   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
1416   model.InsertChar('x');
1417   EXPECT_STR_EQ("ABCDEx", model.text());
1418   EXPECT_TRUE(model.Undo());  // set composition should forget undone edit.
1419   model.SetCompositionText(composition);
1420   EXPECT_TRUE(model.HasCompositionText());
1421   EXPECT_TRUE(model.HasSelection());
1422   EXPECT_STR_EQ("ABCDEabc", model.text());
1423
1424   // Confirm the composition.
1425   model.ConfirmCompositionText();
1426   EXPECT_STR_EQ("ABCDEabc", model.text());
1427   EXPECT_TRUE(model.Undo());
1428   EXPECT_STR_EQ("ABCDE", model.text());
1429   EXPECT_TRUE(model.Undo());
1430   EXPECT_STR_EQ("", model.text());
1431   EXPECT_TRUE(model.Redo());
1432   EXPECT_STR_EQ("ABCDE", model.text());
1433   EXPECT_TRUE(model.Redo());
1434   EXPECT_STR_EQ("ABCDEabc", model.text());
1435   EXPECT_FALSE(model.Redo());
1436
1437   // Cancel the composition.
1438   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_LEFT, false);
1439   model.SetCompositionText(composition);
1440   EXPECT_STR_EQ("abcABCDEabc", model.text());
1441   model.CancelCompositionText();
1442   EXPECT_STR_EQ("ABCDEabc", model.text());
1443   EXPECT_FALSE(model.Redo());
1444   EXPECT_STR_EQ("ABCDEabc", model.text());
1445   EXPECT_TRUE(model.Undo());
1446   EXPECT_STR_EQ("ABCDE", model.text());
1447   EXPECT_TRUE(model.Redo());
1448   EXPECT_STR_EQ("ABCDEabc", model.text());
1449   EXPECT_FALSE(model.Redo());
1450
1451   // Call SetText with the same text as the result.
1452   ResetModel(&model);
1453   model.SetText(base::ASCIIToUTF16("ABCDE"));
1454   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
1455   model.SetCompositionText(composition);
1456   EXPECT_STR_EQ("ABCDEabc", model.text());
1457   model.SetText(base::ASCIIToUTF16("ABCDEabc"));
1458   EXPECT_STR_EQ("ABCDEabc", model.text());
1459   EXPECT_TRUE(model.Undo());
1460   EXPECT_STR_EQ("ABCDE", model.text());
1461   EXPECT_TRUE(model.Redo());
1462   EXPECT_STR_EQ("ABCDEabc", model.text());
1463   EXPECT_FALSE(model.Redo());
1464
1465   // Call SetText with a different result; the composition should be forgotten.
1466   ResetModel(&model);
1467   model.SetText(base::ASCIIToUTF16("ABCDE"));
1468   model.MoveCursor(gfx::LINE_BREAK, gfx::CURSOR_RIGHT, false);
1469   model.SetCompositionText(composition);
1470   EXPECT_STR_EQ("ABCDEabc", model.text());
1471   model.SetText(base::ASCIIToUTF16("1234"));
1472   EXPECT_STR_EQ("1234", model.text());
1473   EXPECT_TRUE(model.Undo());
1474   EXPECT_STR_EQ("ABCDE", model.text());
1475   EXPECT_TRUE(model.Redo());
1476   EXPECT_STR_EQ("1234", model.text());
1477   EXPECT_FALSE(model.Redo());
1478
1479   // TODO(oshima): Test the behavior with an IME.
1480 }
1481
1482 }  // namespace views