third_party/WebKit/Source/core/css/CSSStyleSheetResourceTest.cpp - Issue 1566653002: Revert of Fix null dereference on MemoryCache.

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Issue 1566653002: Revert of Fix null dereference on MemoryCache. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 11 months ago

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1 // Copyright 2016 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 "core/fetch/CSSStyleSheetResource.h"

6

7 #include "core/css/CSSCrossfadeValue.h"

8 #include "core/css/CSSImageValue.h"

9 #include "core/css/CSSPrimitiveValue.h"

10 #include "core/css/CSSProperty.h"

11 #include "core/css/CSSSelectorList.h"

12 #include "core/css/CSSStyleSheet.h"

13 #include "core/css/StylePropertySet.h"

14 #include "core/css/StyleRule.h"

15 #include "core/css/StyleSheetContents.h"

16 #include "core/css/parser/CSSParserMode.h"

17 #include "core/css/parser/CSSParserSelector.h"

18 #include "core/dom/Document.h"

19 #include "core/fetch/FetchContext.h"

20 #include "core/fetch/FetchInitiatorTypeNames.h"

21 #include "core/fetch/FetchRequest.h"

22 #include "core/fetch/MemoryCache.h"

23 #include "core/fetch/ResourceFetcher.h"

24 #include "core/testing/DummyPageHolder.h"

25 #include "platform/heap/Handle.h"

26 #include "platform/network/ResourceRequest.h"

27 #include "platform/testing/URLTestHelpers.h"

28 #include "platform/testing/UnitTestHelpers.h"

29 #include "platform/weborigin/KURL.h"

30 #include "public/platform/Platform.h"

31 #include "public/platform/WebURLResponse.h"

32 #include "public/platform/WebUnitTestSupport.h"

33 #include "testing/gtest/include/gtest/gtest.h"

34 #include "wtf/RefPtr.h"

35 #include "wtf/text/WTFString.h"

36

37 namespace blink {

38

39 class Document;

40

41 namespace {

42

43 class CSSStyleSheetResourceTest : public ::testing::Test {

44 protected:

45 CSSStyleSheetResourceTest()

46 {

47 m_originalMemoryCache = replaceMemoryCacheForTesting(MemoryCache::create ());

48 m_page = DummyPageHolder::create();

49 document()->setURL(KURL(KURL(), "https://localhost/"));

50 }

51

52 ~CSSStyleSheetResourceTest() override

53 {

54 replaceMemoryCacheForTesting(m_originalMemoryCache.release());

55 }

56

57 Document* document() { return &m_page->document(); }

58

59 Persistent<MemoryCache> m_originalMemoryCache;

60 OwnPtr<DummyPageHolder> m_page;

61 };

62

63 TEST_F(CSSStyleSheetResourceTest, PruneCanCauseEviction)

64 {

65 {

66 // We need this scope to remove all references.

67 KURL imageURL(KURL(), "https://localhost/image");

68 KURL cssURL(KURL(), "https://localhost/style.css");

69

70 // We need to disable loading because we manually give a response to

71 // the image resource.

72 document()->fetcher()->setAutoLoadImages(false);

73

74 ResourcePtr<CSSStyleSheetResource> cssResource = CSSStyleSheetResource:: createForTest(ResourceRequest(cssURL), "utf-8");

75 memoryCache()->add(cssResource.get());

76 cssResource->responseReceived(ResourceResponse(cssURL, "style/css", 0, n ullAtom, String()), nullptr);

77 cssResource->finish();

78

79 RefPtrWillBeRawPtr<StyleSheetContents> contents = StyleSheetContents::cr eate(CSSParserContext(HTMLStandardMode, nullptr));

80 RefPtrWillBeRawPtr<CSSStyleSheet> sheet = CSSStyleSheet::create(contents , document());

81 RefPtrWillBeRawPtr<CSSCrossfadeValue> crossfade = CSSCrossfadeValue::cre ate(

82 CSSImageValue::create(String("image"), imageURL),

83 CSSImageValue::create(String("image"), imageURL),

84 CSSPrimitiveValue::create(1.0, CSSPrimitiveValue::UnitType::Number)) ;

85 Vector<OwnPtr<CSSParserSelector>> selectors;

86 selectors.append(adoptPtr(new CSSParserSelector()));

87 selectors[0]->setMatch(CSSSelector::Id);

88 selectors[0]->setValue("foo");

89 CSSProperty property(CSSPropertyBackground, crossfade);

90 contents->parserAppendRule(

91 StyleRule::create(CSSSelectorList::adoptSelectorVector(selectors), I mmutableStylePropertySet::create(&property, 1, HTMLStandardMode)));

92

93 crossfade->loadSubimages(document());

94 ResourcePtr<Resource> imageResource = memoryCache()->resourceForURL(imag eURL, MemoryCache::defaultCacheIdentifier());

95 ASSERT_TRUE(imageResource);

96 ResourceResponse imageResponse;

97 imageResponse.setURL(imageURL);

98 imageResponse.setHTTPHeaderField("cache-control", "no-store");

99 imageResource->responseReceived(imageResponse, nullptr);

100

101 contents->checkLoaded();

102 cssResource->saveParsedStyleSheet(contents);

103

104 memoryCache()->update(cssResource.get(), cssResource->size(), cssResourc e->size(), false);

105 memoryCache()->update(imageResource.get(), imageResource->size(), imageR esource->size(), false);

106 if (!memoryCache()->isInSameLRUListForTest(cssResource.get(), imageResou rce.get())) {

107 // We assume that the LRU list is determined by \|size / accessCount\| .

108 for (size_t i = 0; i < cssResource->size() + 1; ++i)

109 memoryCache()->update(cssResource.get(), cssResource->size(), cs sResource->size(), true);

110 for (size_t i = 0; i < imageResource->size() + 1; ++i)

111 memoryCache()->update(imageResource.get(), imageResource->size() , imageResource->size(), true);

112 }

113 ASSERT_TRUE(memoryCache()->isInSameLRUListForTest(cssResource.get(), ima geResource.get()));

114 }

115 Heap::collectAllGarbage();

116 // This operation should not lead to crash!

117 memoryCache()->pruneAll();

118 }

119

120 } // namespace

121 } // namespace blink

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