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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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