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// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/css/resolver/cascade_filter.h"
#include <gtest/gtest.h>
namespace blink {
TEST(CascadeFilterTest, FilterNothing) {
CascadeFilter filter;
EXPECT_FALSE(filter.Rejects(GetCSSPropertyBackgroundColor()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyColor()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyDisplay()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyFloat()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyInternalVisitedColor()));
}
TEST(CascadeFilterTest, ConstructorBehavesLikeSingleAdd) {
EXPECT_EQ(CascadeFilter().Add(CSSProperty::kInherited, true),
CascadeFilter(CSSProperty::kInherited, true));
EXPECT_EQ(CascadeFilter().Add(CSSProperty::kInherited, false),
CascadeFilter(CSSProperty::kInherited, false));
}
TEST(CascadeFilterTest, Equals) {
EXPECT_EQ(CascadeFilter(CSSProperty::kInherited, true),
CascadeFilter(CSSProperty::kInherited, true));
EXPECT_EQ(CascadeFilter(CSSProperty::kInherited, false),
CascadeFilter(CSSProperty::kInherited, false));
}
TEST(CascadeFilterTest, NotEqualsMask) {
EXPECT_NE(CascadeFilter(CSSProperty::kInherited, true),
CascadeFilter(CSSProperty::kInherited, false));
EXPECT_NE(CascadeFilter(CSSProperty::kInherited, false),
CascadeFilter(CSSProperty::kVisited, false));
EXPECT_NE(CascadeFilter(CSSProperty::kInherited, false),
CascadeFilter(CSSProperty::kInherited, false)
.Add(CSSProperty::kVisited, false));
EXPECT_NE(CascadeFilter(CSSProperty::kInherited, false), CascadeFilter());
}
TEST(CascadeFilterTest, FilterInherited) {
CascadeFilter filter(CSSProperty::kInherited, true);
EXPECT_FALSE(filter.Rejects(GetCSSPropertyBackgroundColor()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyColor()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyFontSize()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyDisplay()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyFloat()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyInternalVisitedColor()));
}
TEST(CascadeFilterTest, FilterNonInherited) {
CascadeFilter filter(CSSProperty::kInherited, false);
EXPECT_TRUE(filter.Rejects(GetCSSPropertyBackgroundColor()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyColor()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyDisplay()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyFloat()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyInternalVisitedColor()));
}
TEST(CascadeFilterTest, FilterVisitedAndInherited) {
auto filter = CascadeFilter()
.Add(CSSProperty::kVisited, true)
.Add(CSSProperty::kInherited, true);
EXPECT_FALSE(filter.Rejects(GetCSSPropertyBackgroundColor()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyColor()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyDisplay()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyFloat()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyInternalVisitedBackgroundColor()));
}
TEST(CascadeFilterTest, FilterVisitedAndNonInherited) {
auto filter = CascadeFilter()
.Add(CSSProperty::kVisited, true)
.Add(CSSProperty::kInherited, false);
EXPECT_TRUE(filter.Rejects(GetCSSPropertyBackgroundColor()));
EXPECT_FALSE(filter.Rejects(GetCSSPropertyColor()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyDisplay()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyFloat()));
EXPECT_TRUE(filter.Rejects(GetCSSPropertyInternalVisitedColor()));
}
TEST(CascadeFilterTest, RejectFlag) {
auto filter = CascadeFilter()
.Add(CSSProperty::kVisited, true)
.Add(CSSProperty::kInherited, false);
EXPECT_TRUE(filter.Rejects(CSSProperty::kVisited, true));
EXPECT_TRUE(filter.Rejects(CSSProperty::kInherited, false));
EXPECT_FALSE(filter.Rejects(CSSProperty::kVisited, false));
EXPECT_FALSE(filter.Rejects(CSSProperty::kInherited, true));
}
TEST(CascadeFilterTest, AddDoesNotOverwrite) {
auto filter = CascadeFilter()
.Add(CSSProperty::kVisited, true)
.Add(CSSProperty::kInherited, false);
EXPECT_TRUE(filter.Rejects(CSSProperty::kVisited, true));
EXPECT_TRUE(filter.Rejects(CSSProperty::kInherited, false));
filter = filter.Add(CSSProperty::kVisited, false);
filter = filter.Add(CSSProperty::kInherited, true);
// Add has no effect if flags are already set:
EXPECT_TRUE(filter.Rejects(CSSProperty::kVisited, true));
EXPECT_TRUE(filter.Rejects(CSSProperty::kInherited, false));
}
TEST(CascadeFilterTest, SetDoesOverwrite) {
auto filter = CascadeFilter()
.Add(CSSProperty::kVisited, true)
.Add(CSSProperty::kInherited, false);
EXPECT_TRUE(filter.Rejects(CSSProperty::kVisited, true));
EXPECT_TRUE(filter.Rejects(CSSProperty::kInherited, false));
filter = filter.Set(CSSProperty::kVisited, false);
filter = filter.Set(CSSProperty::kInherited, true);
// Add has no effect if flags are already set:
EXPECT_TRUE(filter.Rejects(CSSProperty::kVisited, false));
EXPECT_TRUE(filter.Rejects(CSSProperty::kInherited, true));
}
} // namespace blink
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