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// Copyright 2008, Google Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// 3. Neither the name of Google Inc. nor the names of its contributors may be
// used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// This file contains the unit tests for the XmlElement class.
#include "kml/base/xml_element.h"
#include "boost/intrusive_ptr.hpp"
#include "gtest/gtest.h"
#include "kml/base/xml_file.h"
namespace kmlbase {
// Forward declare TestElement for use the TestElementPtr typedef.
class TestElement;
// XmlElement derives from Referent such that any derived class can use
// boost::intrusive_ptr.
typedef boost::intrusive_ptr<TestElement> TestElementPtr;
// The typical use case of XmlElement is to derive a concrete (or abstract)
// XML element class.
class TestElement : public XmlElement {
public:
bool SetChild(const TestElementPtr& child) {
// Any XmlElement taking on a child XmlElement should check parentage of
// the potential child using XmlElement::SetParent:
if (!child_ && child->SetParent(this)) {
// This child had no existing parent so we can make this our own.
child_ = child;
return true;
}
return false;
}
private:
TestElementPtr child_;
};
// A most basic XmlFile.
class TestFile : public XmlFile {
};
typedef boost::intrusive_ptr<TestFile> TestFilePtr;
TEST(XmlElementTest, TestDefault) {
TestElementPtr element = new TestElement;
ASSERT_FALSE(element->GetParent());
ASSERT_FALSE(element->GetXmlFile());
ASSERT_TRUE(element->InSameXmlFile(element));
}
TEST(XmlElementTest, TestSetGetParent) {
TestElementPtr parent = new TestElement;
TestElementPtr child = new TestElement;
ASSERT_TRUE(parent->SetChild(child));
ASSERT_TRUE(child->GetParent());
ASSERT_FALSE(parent->SetChild(child));
}
TEST(XmlElementTest, TestSetSameXmlFile) {
TestElementPtr e0 = new TestElement;
TestElementPtr e1 = new TestElement;
TestFilePtr f0 = new TestFile;
TestFilePtr f1 = new TestFile;
ASSERT_TRUE(e0->SetXmlFile(f0.get()));
ASSERT_TRUE(e1->SetXmlFile(f1.get()));
ASSERT_FALSE(e1->InSameXmlFile(e0));
ASSERT_FALSE(e0->InSameXmlFile(e1));
ASSERT_TRUE(e0->InSameXmlFile(e0));
}
} // end namespace kmlbase
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