third_party/WebKit/Source/core/dom/StyleElementTest.cpp

   1 // Copyright 2015 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 "config.h"
   6 #include "core/dom/StyleElement.h"
   7
   8 #include "core/css/StyleSheetContents.h"
   9 #include "core/dom/Comment.h"
  10 #include "core/html/HTMLStyleElement.h"
  11 #include "core/testing/DummyPageHolder.h"
  12 #include <gtest/gtest.h>
  13
  14 namespace blink {
  15
  16 TEST(StyleElementTest, CreateSheetUsesCache)
  17 {
  18     OwnPtr<DummyPageHolder> dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
  19     Document& document = dummyPageHolder->document();
  20
  21     document.documentElement()->setInnerHTML("<style id=style>a { top: 0; }</style>", ASSERT_NO_EXCEPTION);
  22
  23     HTMLStyleElement& styleElement = toHTMLStyleElement(*document.getElementById("style"));
  24     RefPtrWillBeRawPtr<StyleSheetContents> sheet = styleElement.sheet()->contents();
  25
  26     RefPtrWillBeRawPtr<Comment> comment = document.createComment("hello!");
  27     styleElement.appendChild(comment);
  28     EXPECT_EQ(styleElement.sheet()->contents(), sheet);
  29
  30     styleElement.removeChild(comment);
  31     EXPECT_EQ(styleElement.sheet()->contents(), sheet);
  32 }
  33
  34 } // namespace blink