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// Copyright 2015 The Cobalt Authors. 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/dom/serializer.h"
#include <memory>
#include <sstream>
#include <string>
#include "base/message_loop/message_loop.h"
#include "cobalt/dom/document.h"
#include "cobalt/dom/document_type.h"
#include "cobalt/dom/element.h"
#include "cobalt/dom/html_element_context.h"
#include "cobalt/dom/testing/stub_environment_settings.h"
#include "cobalt/dom_parser/parser.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cobalt {
namespace dom {
class SerializerTest : public ::testing::Test {
protected:
SerializerTest();
~SerializerTest() override {}
testing::StubEnvironmentSettings environment_settings_;
std::unique_ptr<dom_parser::Parser> dom_parser_;
std::unique_ptr<DomStatTracker> dom_stat_tracker_;
HTMLElementContext html_element_context_;
scoped_refptr<Document> document_;
scoped_refptr<Element> root_;
base::SourceLocation source_location_;
base::MessageLoop message_loop_;
};
SerializerTest::SerializerTest()
: dom_parser_(new dom_parser::Parser()),
dom_stat_tracker_(new DomStatTracker("SerializerTest")),
html_element_context_(&environment_settings_, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, dom_stat_tracker_.get(), "",
base::kApplicationStateStarted, NULL),
document_(new Document(&html_element_context_)),
root_(new Element(document_, base::Token("root"))),
source_location_(base::SourceLocation("[object SerializerTest]", 1, 1)) {}
TEST_F(SerializerTest, Serialize) {
const std::string input = "<div a><div b><div c></div></div></div>";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.Serialize(root_->first_element_child());
EXPECT_EQ(input, oss.str());
}
TEST_F(SerializerTest, SerializeSelfOnly) {
const std::string input = "<div a><div b><div c></div></div></div>";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.SerializeSelfOnly(root_->first_element_child());
EXPECT_EQ("<div a>...</div>", oss.str());
}
TEST_F(SerializerTest, SerializeDescendantsOnly) {
const std::string input = "<div a><div b><div c></div></div></div>";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.SerializeDescendantsOnly(root_->first_element_child());
EXPECT_EQ("<div b><div c></div></div>", oss.str());
}
TEST_F(SerializerTest, Empty) {
const std::string input = "";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.SerializeDescendantsOnly(root_);
EXPECT_EQ(input, oss.str());
}
TEST_F(SerializerTest, Comment) {
const std::string input = "<div><!-- some comment --></div>";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.SerializeDescendantsOnly(root_);
EXPECT_EQ(input, oss.str());
}
TEST_F(SerializerTest, Document) {
const std::string input = "<html><body><div></div></body></html>";
document_ = dom_parser_->ParseDocument(input, &html_element_context_,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.Serialize(document_);
EXPECT_EQ(input, oss.str());
}
TEST_F(SerializerTest, DocumentType) {
// Currently doctype is not generated by the parser, so not using it here.
scoped_refptr<DocumentType> doctype =
new DocumentType(document_, base::Token("html"), "", "");
std::ostringstream oss;
Serializer serializer(&oss);
serializer.Serialize(doctype);
EXPECT_EQ("<!DOCTYPE html>", oss.str());
}
TEST_F(SerializerTest, ElementBothOpeningAndClosingTagShouldBeOutput) {
const std::string input = "<br/>";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.SerializeDescendantsOnly(root_);
EXPECT_EQ("<br></br>", oss.str());
}
TEST_F(SerializerTest, ElementAttributesShouldBeSorted) {
const std::string input = "<div c b a></div>";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.SerializeDescendantsOnly(root_);
EXPECT_EQ("<div a b c></div>", oss.str());
}
TEST_F(SerializerTest, ElementAttributeEmptyValuesShouldBeOmitted) {
const std::string input = "<div a b=\"\" c=\"value\"></div>";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.SerializeDescendantsOnly(root_);
EXPECT_EQ("<div a b c=\"value\"></div>", oss.str());
}
TEST_F(SerializerTest, ElementAttributeSpacesShouldBeCollapsed) {
const std::string input = "<div a b c></div>";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.SerializeDescendantsOnly(root_);
EXPECT_EQ("<div a b c></div>", oss.str());
}
TEST_F(SerializerTest, Text) {
const std::string input = "<div> some text </div>";
dom_parser_->ParseDocumentFragment(input, document_, root_, NULL,
source_location_);
std::ostringstream oss;
Serializer serializer(&oss);
serializer.SerializeDescendantsOnly(root_);
EXPECT_EQ(input, oss.str());
}
} // namespace dom
} // namespace cobalt