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-rw-r--r--core/fxcrt/css/cfx_cssstylesheet_unittest.cpp239
1 files changed, 239 insertions, 0 deletions
diff --git a/core/fxcrt/css/cfx_cssstylesheet_unittest.cpp b/core/fxcrt/css/cfx_cssstylesheet_unittest.cpp
new file mode 100644
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+++ b/core/fxcrt/css/cfx_cssstylesheet_unittest.cpp
@@ -0,0 +1,239 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/fxcrt/css/cfx_cssstylesheet.h"
+
+#include <memory>
+#include <vector>
+
+#include "core/fxcrt/css/cfx_cssdeclaration.h"
+#include "core/fxcrt/css/cfx_cssenumvalue.h"
+#include "core/fxcrt/css/cfx_cssnumbervalue.h"
+#include "core/fxcrt/css/cfx_cssstylerule.h"
+#include "core/fxcrt/css/cfx_cssvaluelist.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/base/ptr_util.h"
+#include "third_party/base/stl_util.h"
+
+class CFX_CSSStyleSheetTest : public testing::Test {
+ public:
+ void SetUp() override {
+ sheet_ = pdfium::MakeUnique<CFX_CSSStyleSheet>();
+ decl_ = nullptr;
+ }
+
+ void TearDown() override { decl_ = nullptr; }
+
+ void LoadAndVerifyDecl(const wchar_t* buf,
+ const std::vector<CFX_WideString>& selectors,
+ size_t decl_count) {
+ ASSERT(sheet_);
+
+ EXPECT_TRUE(sheet_->LoadBuffer(buf, FXSYS_wcslen(buf)));
+ EXPECT_EQ(sheet_->CountRules(), 1);
+
+ CFX_CSSStyleRule* style = sheet_->GetRule(0);
+ EXPECT_EQ(selectors.size(), style->CountSelectorLists());
+
+ for (size_t i = 0; i < selectors.size(); i++) {
+ uint32_t hash = FX_HashCode_GetW(selectors[i].AsStringC(), true);
+ EXPECT_EQ(hash, style->GetSelectorList(i)->GetNameHash());
+ }
+
+ decl_ = style->GetDeclaration();
+ EXPECT_EQ(decl_->PropertyCountForTesting(), decl_count);
+ }
+
+ void VerifyFloat(CFX_CSSProperty prop, float val, CFX_CSSNumberType type) {
+ ASSERT(decl_);
+
+ bool important;
+ CFX_RetainPtr<CFX_CSSValue> v = decl_->GetProperty(prop, &important);
+ EXPECT_EQ(v->GetType(), CFX_CSSPrimitiveType::Number);
+ EXPECT_EQ(v.As<CFX_CSSNumberValue>()->Kind(), type);
+ EXPECT_EQ(v.As<CFX_CSSNumberValue>()->Value(), val);
+ }
+
+ void VerifyEnum(CFX_CSSProperty prop, CFX_CSSPropertyValue val) {
+ ASSERT(decl_);
+
+ bool important;
+ CFX_RetainPtr<CFX_CSSValue> v = decl_->GetProperty(prop, &important);
+ EXPECT_EQ(v->GetType(), CFX_CSSPrimitiveType::Enum);
+ EXPECT_EQ(v.As<CFX_CSSEnumValue>()->Value(), val);
+ }
+
+ void VerifyList(CFX_CSSProperty prop,
+ std::vector<CFX_CSSPropertyValue> values) {
+ ASSERT(decl_);
+
+ bool important;
+ CFX_RetainPtr<CFX_CSSValueList> list =
+ decl_->GetProperty(prop, &important).As<CFX_CSSValueList>();
+ EXPECT_EQ(list->CountValues(), pdfium::CollectionSize<int32_t>(values));
+
+ for (size_t i = 0; i < values.size(); i++) {
+ CFX_RetainPtr<CFX_CSSValue> val = list->GetValue(i);
+ EXPECT_EQ(val->GetType(), CFX_CSSPrimitiveType::Enum);
+ EXPECT_EQ(val.As<CFX_CSSEnumValue>()->Value(), values[i]);
+ }
+ }
+
+ std::unique_ptr<CFX_CSSStyleSheet> sheet_;
+ CFX_CSSDeclaration* decl_;
+};
+
+TEST_F(CFX_CSSStyleSheetTest, ParseMultipleSelectors) {
+ const wchar_t* buf =
+ L"a { border: 10px; }\nb { text-decoration: underline; }";
+ EXPECT_TRUE(sheet_->LoadBuffer(buf, FXSYS_wcslen(buf)));
+ EXPECT_EQ(2, sheet_->CountRules());
+
+ CFX_CSSStyleRule* style = sheet_->GetRule(0);
+ EXPECT_EQ(1UL, style->CountSelectorLists());
+
+ bool found_selector = false;
+ uint32_t hash = FX_HashCode_GetW(L"a", true);
+ for (size_t i = 0; i < style->CountSelectorLists(); i++) {
+ if (style->GetSelectorList(i)->GetNameHash() == hash) {
+ found_selector = true;
+ break;
+ }
+ }
+ EXPECT_TRUE(found_selector);
+
+ decl_ = style->GetDeclaration();
+ EXPECT_EQ(4UL, decl_->PropertyCountForTesting());
+
+ VerifyFloat(CFX_CSSProperty::BorderLeftWidth, 10.0,
+ CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderRightWidth, 10.0,
+ CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderTopWidth, 10.0, CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 10.0,
+ CFX_CSSNumberType::Pixels);
+
+ style = sheet_->GetRule(1);
+ EXPECT_EQ(1UL, style->CountSelectorLists());
+
+ found_selector = false;
+ hash = FX_HashCode_GetW(L"b", true);
+ for (size_t i = 0; i < style->CountSelectorLists(); i++) {
+ if (style->GetSelectorList(i)->GetNameHash() == hash) {
+ found_selector = true;
+ break;
+ }
+ }
+ EXPECT_TRUE(found_selector);
+
+ decl_ = style->GetDeclaration();
+ EXPECT_EQ(1UL, decl_->PropertyCountForTesting());
+ VerifyList(CFX_CSSProperty::TextDecoration,
+ {CFX_CSSPropertyValue::Underline});
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseChildSelectors) {
+ const wchar_t* buf = L"a b c { border: 10px; }";
+ EXPECT_TRUE(sheet_->LoadBuffer(buf, FXSYS_wcslen(buf)));
+ EXPECT_EQ(1, sheet_->CountRules());
+
+ CFX_CSSStyleRule* style = sheet_->GetRule(0);
+ EXPECT_EQ(1UL, style->CountSelectorLists());
+
+ auto* sel = style->GetSelectorList(0);
+ EXPECT_TRUE(sel != nullptr);
+ EXPECT_EQ(FX_HashCode_GetW(L"c", true), sel->GetNameHash());
+
+ sel = sel->GetNextSelector();
+ EXPECT_TRUE(sel != nullptr);
+ EXPECT_EQ(FX_HashCode_GetW(L"b", true), sel->GetNameHash());
+
+ sel = sel->GetNextSelector();
+ EXPECT_TRUE(sel != nullptr);
+ EXPECT_EQ(FX_HashCode_GetW(L"a", true), sel->GetNameHash());
+
+ sel = sel->GetNextSelector();
+ EXPECT_TRUE(sel == nullptr);
+
+ decl_ = style->GetDeclaration();
+ EXPECT_EQ(4UL, decl_->PropertyCountForTesting());
+
+ VerifyFloat(CFX_CSSProperty::BorderLeftWidth, 10.0,
+ CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderRightWidth, 10.0,
+ CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderTopWidth, 10.0, CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 10.0,
+ CFX_CSSNumberType::Pixels);
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseUnhandledSelectors) {
+ const wchar_t* buf = L"a > b { padding: 0; }";
+ EXPECT_TRUE(sheet_->LoadBuffer(buf, FXSYS_wcslen(buf)));
+ EXPECT_EQ(0, sheet_->CountRules());
+
+ buf = L"a[first] { padding: 0; }";
+ EXPECT_TRUE(sheet_->LoadBuffer(buf, FXSYS_wcslen(buf)));
+ EXPECT_EQ(0, sheet_->CountRules());
+
+ buf = L"a+b { padding: 0; }";
+ EXPECT_TRUE(sheet_->LoadBuffer(buf, FXSYS_wcslen(buf)));
+ EXPECT_EQ(0, sheet_->CountRules());
+
+ buf = L"a ^ b { padding: 0; }";
+ EXPECT_TRUE(sheet_->LoadBuffer(buf, FXSYS_wcslen(buf)));
+ EXPECT_EQ(0, sheet_->CountRules());
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseMultipleSelectorsCombined) {
+ LoadAndVerifyDecl(L"a, b, c { border: 5px; }", {L"a", L"b", L"c"}, 4);
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseBorder) {
+ LoadAndVerifyDecl(L"a { border: 5px; }", {L"a"}, 4);
+ VerifyFloat(CFX_CSSProperty::BorderLeftWidth, 5.0, CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderRightWidth, 5.0,
+ CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderTopWidth, 5.0, CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 5.0,
+ CFX_CSSNumberType::Pixels);
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseBorderFull) {
+ LoadAndVerifyDecl(L"a { border: 5px solid red; }", {L"a"}, 4);
+ VerifyFloat(CFX_CSSProperty::BorderLeftWidth, 5.0, CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderRightWidth, 5.0,
+ CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderTopWidth, 5.0, CFX_CSSNumberType::Pixels);
+ VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 5.0,
+ CFX_CSSNumberType::Pixels);
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseBorderLeft) {
+ LoadAndVerifyDecl(L"a { border-left: 2.5pc; }", {L"a"}, 1);
+ VerifyFloat(CFX_CSSProperty::BorderLeftWidth, 2.5, CFX_CSSNumberType::Picas);
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseBorderLeftThick) {
+ LoadAndVerifyDecl(L"a { border-left: thick; }", {L"a"}, 1);
+ VerifyEnum(CFX_CSSProperty::BorderLeftWidth, CFX_CSSPropertyValue::Thick);
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseBorderRight) {
+ LoadAndVerifyDecl(L"a { border-right: 2.5pc; }", {L"a"}, 1);
+ VerifyFloat(CFX_CSSProperty::BorderRightWidth, 2.5, CFX_CSSNumberType::Picas);
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseBorderTop) {
+ LoadAndVerifyDecl(L"a { border-top: 2.5pc; }", {L"a"}, 1);
+ VerifyFloat(CFX_CSSProperty::BorderTopWidth, 2.5, CFX_CSSNumberType::Picas);
+}
+
+TEST_F(CFX_CSSStyleSheetTest, ParseBorderBottom) {
+ LoadAndVerifyDecl(L"a { border-bottom: 2.5pc; }", {L"a"}, 1);
+ VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 2.5,
+ CFX_CSSNumberType::Picas);
+}
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