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// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cobalt/cssom/selector.h"
#include "cobalt/cssom/child_combinator.h"
#include "cobalt/cssom/class_selector.h"
#include "cobalt/cssom/complex_selector.h"
#include "cobalt/cssom/compound_selector.h"
#include "cobalt/cssom/descendant_combinator.h"
#include "cobalt/cssom/empty_pseudo_class.h"
#include "cobalt/cssom/id_selector.h"
#include "cobalt/cssom/simple_selector.h"
#include "cobalt/cssom/type_selector.h"
#include "cobalt/cssom/universal_selector.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cobalt {
namespace cssom {
TEST(SelectorTest, UniversalSelectorSpecificity) {
scoped_ptr<SimpleSelector> universal_selector(new UniversalSelector());
EXPECT_EQ(Specificity(0, 0, 0), universal_selector->GetSpecificity());
}
TEST(SelectorTest, TypeSelectorSpecificity) {
scoped_ptr<SimpleSelector> type_selector(new TypeSelector("div"));
EXPECT_EQ(Specificity(0, 0, 1), type_selector->GetSpecificity());
}
TEST(SelectorTest, ClassSelectorSpecificity) {
scoped_ptr<SimpleSelector> class_selector(new ClassSelector("my-class"));
EXPECT_EQ(Specificity(0, 1, 0), class_selector->GetSpecificity());
}
TEST(SelectorTest, IdSelectorSpecificity) {
scoped_ptr<SimpleSelector> id_selector(new IdSelector("my-id"));
EXPECT_EQ(Specificity(1, 0, 0), id_selector->GetSpecificity());
}
TEST(SelectorTest, EmptyPseudoClassSpecificity) {
scoped_ptr<SimpleSelector> empty_pseudo_class(new EmptyPseudoClass());
EXPECT_EQ(Specificity(0, 1, 0), empty_pseudo_class->GetSpecificity());
}
TEST(SelectorTest, CompoundSelectorSpecificity) {
// The following compound selector is "div.my-class#my-id:empty".
//
scoped_ptr<CompoundSelector> compound_selector(new CompoundSelector());
scoped_ptr<SimpleSelector> class_selector(new ClassSelector("my-class"));
compound_selector->AppendSelector(class_selector.Pass());
scoped_ptr<SimpleSelector> empty_pseudo_class(new EmptyPseudoClass());
compound_selector->AppendSelector(empty_pseudo_class.Pass());
scoped_ptr<SimpleSelector> id_selector(new IdSelector("my-id"));
compound_selector->AppendSelector(id_selector.Pass());
scoped_ptr<SimpleSelector> type_selector(new TypeSelector("div"));
compound_selector->AppendSelector(type_selector.Pass());
EXPECT_EQ(Specificity(1, 2, 1), compound_selector->GetSpecificity());
}
TEST(SelectorTest, ComplexSelectorSpecificity) {
// The following complex selector is "div div > div.my-class#my-id:empty".
//
scoped_ptr<ComplexSelector> complex_selector(new ComplexSelector());
scoped_ptr<CompoundSelector> compound_selector(new CompoundSelector());
scoped_ptr<SimpleSelector> class_selector(new ClassSelector("my-class"));
compound_selector->AppendSelector(class_selector.Pass());
scoped_ptr<SimpleSelector> empty_pseudo_class(new EmptyPseudoClass());
compound_selector->AppendSelector(empty_pseudo_class.Pass());
scoped_ptr<SimpleSelector> id_selector(new IdSelector("my-id"));
compound_selector->AppendSelector(id_selector.Pass());
scoped_ptr<SimpleSelector> type_selector(new TypeSelector("div"));
compound_selector->AppendSelector(type_selector.Pass());
scoped_ptr<CompoundSelector> compound_selector2(new CompoundSelector());
compound_selector2->AppendSelector(
make_scoped_ptr<SimpleSelector>(new TypeSelector("div")));
complex_selector->AppendSelector(compound_selector2.Pass());
scoped_ptr<CompoundSelector> compound_selector3(new CompoundSelector());
scoped_ptr<ChildCombinator> child_combinator(new ChildCombinator());
compound_selector3->AppendSelector(
make_scoped_ptr<SimpleSelector>(new TypeSelector("div")));
complex_selector->AppendCombinatorAndSelector(
child_combinator.PassAs<Combinator>(), compound_selector3.Pass());
scoped_ptr<DescendantCombinator> descendant_combinator(
new DescendantCombinator());
complex_selector->AppendCombinatorAndSelector(
descendant_combinator.PassAs<Combinator>(), compound_selector.Pass());
EXPECT_EQ(Specificity(1, 2, 3), complex_selector->GetSpecificity());
}
TEST(SelectorTest, ComplexSelectorAppendCallLimit) {
{
scoped_ptr<ComplexSelector> complex_selector(new ComplexSelector());
complex_selector->AppendSelector(
make_scoped_ptr<CompoundSelector>(new CompoundSelector()));
for (int i = 0; i < ComplexSelector::kCombinatorLimit;
i++) {
scoped_ptr<CompoundSelector> compound_selector(new CompoundSelector());
scoped_ptr<ChildCombinator> child_combinator(new ChildCombinator());
complex_selector->AppendCombinatorAndSelector(
child_combinator.PassAs<Combinator>(), compound_selector.Pass());
}
EXPECT_EQ(complex_selector->combinator_count(),
ComplexSelector::kCombinatorLimit);
}
{
scoped_ptr<ComplexSelector> complex_selector(new ComplexSelector());
complex_selector->AppendSelector(
make_scoped_ptr<CompoundSelector>(new CompoundSelector()));
for (int i = 0;
i < 2 * ComplexSelector::kCombinatorLimit + 1;
i++) {
scoped_ptr<CompoundSelector> compound_selector(new CompoundSelector());
scoped_ptr<ChildCombinator> child_combinator(new ChildCombinator());
complex_selector->AppendCombinatorAndSelector(
child_combinator.PassAs<Combinator>(), compound_selector.Pass());
}
EXPECT_EQ(complex_selector->combinator_count(),
ComplexSelector::kCombinatorLimit);
}
}
} // namespace cssom
} // namespace cobalt