src/third_party/WebKit/Source/core/css/invalidation/DescendantInvalidationSetTest.cpp

   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 "config.h"
   6 #include "core/css/invalidation/DescendantInvalidationSet.h"
   7
   8 #include <gtest/gtest.h>
   9
  10 using namespace blink;
  11
  12 namespace {
  13
  14 // Once we setWholeSubtreeInvalid, we should not keep the HashSets.
  15 TEST(DescendantInvalidationSetTest, SubtreeInvalid_AddBefore)
  16 {
  17     RefPtrWillBeRawPtr<DescendantInvalidationSet> set = DescendantInvalidationSet::create();
  18     set->addClass("a");
  19     set->setWholeSubtreeInvalid();
  20
  21     ASSERT_TRUE(set->isEmpty());
  22 }
  23
  24 // Don't (re)create HashSets if we've already setWholeSubtreeInvalid.
  25 TEST(DescendantInvalidationSetTest, SubtreeInvalid_AddAfter)
  26 {
  27     RefPtrWillBeRawPtr<DescendantInvalidationSet> set = DescendantInvalidationSet::create();
  28     set->setWholeSubtreeInvalid();
  29     set->addTagName("a");
  30
  31     ASSERT_TRUE(set->isEmpty());
  32 }
  33
  34 // No need to keep the HashSets when combining with a wholeSubtreeInvalid set.
  35 TEST(DescendantInvalidationSetTest, SubtreeInvalid_Combine_1)
  36 {
  37     RefPtrWillBeRawPtr<DescendantInvalidationSet> set1 = DescendantInvalidationSet::create();
  38     RefPtrWillBeRawPtr<DescendantInvalidationSet> set2 = DescendantInvalidationSet::create();
  39
  40     set1->addId("a");
  41     set2->setWholeSubtreeInvalid();
  42
  43     set1->combine(*set2);
  44
  45     ASSERT_TRUE(set1->wholeSubtreeInvalid());
  46     ASSERT_TRUE(set1->isEmpty());
  47 }
  48
  49 // No need to add HashSets from combining set when we already have wholeSubtreeInvalid.
  50 TEST(DescendantInvalidationSetTest, SubtreeInvalid_Combine_2)
  51 {
  52     RefPtrWillBeRawPtr<DescendantInvalidationSet> set1 = DescendantInvalidationSet::create();
  53     RefPtrWillBeRawPtr<DescendantInvalidationSet> set2 = DescendantInvalidationSet::create();
  54
  55     set1->setWholeSubtreeInvalid();
  56     set2->addAttribute("a");
  57
  58     set1->combine(*set2);
  59
  60     ASSERT_TRUE(set1->wholeSubtreeInvalid());
  61     ASSERT_TRUE(set1->isEmpty());
  62 }
  63
  64 #ifndef NDEBUG
  65 TEST(DescendantInvalidationSetTest, ShowDebug)
  66 {
  67     RefPtrWillBeRawPtr<DescendantInvalidationSet> set = DescendantInvalidationSet::create();
  68     set->show();
  69 }
  70 #endif // NDEBUG
  71
  72 } // namespace