Trybot test for finishComposingText keeping style

third_party/WebKit/Source/core/editing/InputMethodControllerTest.cpp

 // Copyright 2014 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 "core/editing/InputMethodController.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/dom/Range.h"
 #include "core/editing/Editor.h"
@@ skipping 169 matching lines @@
   controller().setComposition(String::fromUTF8("\xE0\xB0\x83\xE0\xB0\x83"),
                               underlines, 2, 2);
   EXPECT_STREQ("<b>\xE0\xB0\x83\xE0\xB0\x83</b>",
                div->innerHTML().utf8().data());
 
   controller().setComposition(String::fromUTF8("\xE0\xB0\x83"), underlines, 1,
                               1);
   EXPECT_STREQ("<b>\xE0\xB0\x83</b>", div->innerHTML().utf8().data());
 }
 
+TEST_F(InputMethodControllerTest, FinishComposingTextKeepingStyle) {
+  Element* div = insertHTMLElement(
+      "<div id='sample' "
+      "contenteditable='true'>k<b>i</b>d</div>",
+      "sample");
+
+  Vector<CompositionUnderline> underlines;
+  underlines.append(CompositionUnderline(0, 3, Color(255, 0, 0), false, 0));
+  controller().setCompositionFromExistingText(underlines, 0, 3);
+
+  // Append a character.
+  controller().setComposition(String("kids"), underlines, 4, 4);
+  EXPECT_STREQ("k<b>i</b>ds", div->innerHTML().utf8().data());
+
+  controller().finishComposingText(InputMethodController::KeepSelection);
+  EXPECT_STREQ("k<b>i</b>ds", div->innerHTML().utf8().data());
+}
+
 TEST_F(InputMethodControllerTest, SelectionOnConfirmExistingText) {
   insertHTMLElement("<div id='sample' contenteditable='true'>hello world</div>",
                     "sample");
 
   Vector<CompositionUnderline> underlines;
   underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
   controller().setCompositionFromExistingText(underlines, 0, 5);
 
   controller().finishComposingText(InputMethodController::KeepSelection);
   EXPECT_EQ(0, frame().selection().start().computeOffsetInContainerNode());
@@ skipping 672 matching lines @@
   EXPECT_STREQ("beforeinput.data:i;input.data:i;",
                document().title().utf8().data());
 
   document().setTitle(emptyString());
   controller().finishComposingText(InputMethodController::KeepSelection);
   EXPECT_STREQ("beforeinput.data:ni;input.data:ni;",
                document().title().utf8().data());
 }
 
 }  // namespace blink