third_party/WebKit/Source/core/dom/TreeScopeStyleSheetCollectionTest.cpp - Issue 1913833002: Current work-in-progress crbug.com/567021

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Issue 1913833002: Current work-in-progress crbug.com/567021 (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Fixed html import issue. Created 4 years ago

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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 "core/dom/TreeScopeStyleSheetCollection.h"

6

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

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

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

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

11

12 namespace blink {

13

14 class TreeScopeStyleSheetCollectionTest : public testing::Test {

15 protected:

16 using SheetVector = HeapVector<Member<CSSStyleSheet>>;

17 using ContentsVector = HeapVector<Member<StyleSheetContents>>;

18

19 enum UpdateType {

20 Reconstruct = TreeScopeStyleSheetCollection::Reconstruct,

21 Reset = TreeScopeStyleSheetCollection::Reset,

22 Additive = TreeScopeStyleSheetCollection::Additive

23 };

24

25 static CSSStyleSheet* createSheet() {

26 return CSSStyleSheet::create(StyleSheetContents::create(

27 CSSParserContext(HTMLStandardMode, nullptr)));

28 }

29

30 static void compareStyleSheets(const SheetVector& oldStyleSheets,

31 const SheetVector& newStyleSheets,

32 const ContentsVector& expAddedSheets,

33 UpdateType testUpdateType) {

34 ContentsVector addedSheets;

35 UpdateType updateType = static_cast<UpdateType>(

36 TreeScopeStyleSheetCollection::compareStyleSheets(

37 oldStyleSheets, newStyleSheets, addedSheets));

38 EXPECT_EQ(testUpdateType, updateType);

39 EXPECT_EQ(expAddedSheets.size(), addedSheets.size());

40 if (expAddedSheets.size() == addedSheets.size()) {

41 for (unsigned i = 0; i < addedSheets.size(); i++)

42 EXPECT_EQ(expAddedSheets.at(i), addedSheets.at(i));

43 }

44 }

45 };

46

47 TEST_F(TreeScopeStyleSheetCollectionTest, CompareStyleSheetsAppend) {

48 CSSStyleSheet* sheet1 = createSheet();

49 CSSStyleSheet* sheet2 = createSheet();

50

51 ContentsVector added;

52 SheetVector previous;

53 SheetVector current;

54

55 previous.append(sheet1);

56

57 current.append(sheet1);

58 current.append(sheet2);

59

60 added.append(sheet2->contents());

61

62 compareStyleSheets(previous, current, added, Additive);

63 }

64

65 TEST_F(TreeScopeStyleSheetCollectionTest, CompareStyleSheetsPrepend) {

66 CSSStyleSheet* sheet1 = createSheet();

67 CSSStyleSheet* sheet2 = createSheet();

68

69 ContentsVector added;

70 SheetVector previous;

71 SheetVector current;

72

73 previous.append(sheet2);

74

75 current.append(sheet1);

76 current.append(sheet2);

77

78 added.append(sheet1->contents());

79

80 compareStyleSheets(previous, current, added, Reconstruct);

81 }

82

83 TEST_F(TreeScopeStyleSheetCollectionTest, CompareStyleSheetsInsert) {

84 CSSStyleSheet* sheet1 = createSheet();

85 CSSStyleSheet* sheet2 = createSheet();

86 CSSStyleSheet* sheet3 = createSheet();

87

88 ContentsVector added;

89 SheetVector previous;

90 SheetVector current;

91

92 previous.append(sheet1);

93 previous.append(sheet3);

94

95 current.append(sheet1);

96 current.append(sheet2);

97 current.append(sheet3);

98

99 added.append(sheet2->contents());

100

101 compareStyleSheets(previous, current, added, Reconstruct);

102 }

103

104 TEST_F(TreeScopeStyleSheetCollectionTest, CompareStyleSheetsRemove) {

105 CSSStyleSheet* sheet1 = createSheet();

106 CSSStyleSheet* sheet2 = createSheet();

107 CSSStyleSheet* sheet3 = createSheet();

108

109 ContentsVector added;

110 SheetVector previous;

111 SheetVector current;

112

113 previous.append(sheet1);

114 previous.append(sheet2);

115 previous.append(sheet3);

116

117 current.append(sheet1);

118 current.append(sheet3);

119

120 added.append(sheet2->contents());

121

122 // This is really the same as Insert.

123 // TreeScopeStyleSheetCollection::compareStyleSheets will assert if you pass

124 // an array that is longer as the first parameter.

125 compareStyleSheets(current, previous, added, Reconstruct);

126 }

127

128 TEST_F(TreeScopeStyleSheetCollectionTest, CompareStyleSheetsInsertRemove) {

129 CSSStyleSheet* sheet1 = createSheet();

130 CSSStyleSheet* sheet2 = createSheet();

131 CSSStyleSheet* sheet3 = createSheet();

132

133 ContentsVector added;

134 SheetVector previous;

135 SheetVector current;

136

137 previous.append(sheet1);

138 previous.append(sheet2);

139

140 current.append(sheet2);

141 current.append(sheet3);

142

143 // TODO(rune@opera.com): This is clearly wrong. We add sheet3 and remove

144 // sheet1 and compareStyleSheets returns sheet2 and sheet3 as added

145 // (crbug/475858).

146 added.append(sheet2->contents());

147 added.append(sheet3->contents());

148

149 compareStyleSheets(previous, current, added, Reconstruct);

150 }

151

152 } // namespace blink

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