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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 Parse() function and targets
// various internals of the KmlHandler class.
#include "kml/dom/kml_funcs.h"
#include "kml/dom/element.h"
#include "kml/dom/kml.h"
#include "kml/dom/kml_cast.h"
#include "gtest/gtest.h"
namespace kmldom {
// Verify proper behavior for good KML. The XML is valid and all elements
// are known and contained by proper parents.
TEST(ParserTest, TestValidKml) {
string errors;
ElementPtr root = Parse("<kml>"
"<Placemark>"
"<name>a good Placemark</name>"
"<Point>"
"<coordinates>1,2,3</coordinates>"
"</Point>"
"</Placemark>"
"</kml>",
&errors);
// KML is valid so there are no errors and the root is <kml>.
ASSERT_TRUE(errors.empty());
ASSERT_TRUE(root);
const KmlPtr kml = AsKml(root);
ASSERT_TRUE(kml);
errors.clear();
// Assigning to root releases storage allocated in Parse above.
root = Parse(" <kml/>", &errors); // Note leading space.
ASSERT_TRUE(errors.empty());
ASSERT_TRUE(root);
ASSERT_TRUE(AsKml(root));
// ElementPtr root going out of scope releases storage allocated in 2nd
// Parse.
}
TEST(ParserTest, TestJunkInput) {
// Parse a garbage string.
string errors;
ElementPtr root = Parse("This is not even xml", &errors);
// Since the parse failed there will be an error string and NULL is returned.
ASSERT_FALSE(errors.empty());
ASSERT_FALSE(root);
// An unescaped ampersand is a basic XML parse error.
root = Parse("<Document><name>&</name></Document>", &errors);
ASSERT_FALSE(errors.empty());
ASSERT_FALSE(root);
}
TEST(ParserTest, TestFullyUnknownXml) {
// Parse perfectly valid, but fully unknown XML. "Fully unknown" means
// the root element is not known. When Parse returns NULL an error string
// is set. The error string is considered human readable and not
// examined further by this test.
string errors;
ElementPtr root;
// These test some subtle variations of the inner workings of expat.
root = Parse("<gml/>", &errors);
ASSERT_FALSE(root);
ASSERT_FALSE(errors.empty());
errors.clear();
root = Parse("<gml></gml>", &errors);
ASSERT_FALSE(root);
ASSERT_FALSE(errors.empty());
errors.clear();
root = Parse("<gml/>\n", &errors);
ASSERT_FALSE(root);
ASSERT_FALSE(errors.empty());
errors.clear();
root = Parse("<gml></gml>\n", &errors);
ASSERT_FALSE(root);
ASSERT_FALSE(errors.empty());
errors.clear();
root = Parse("<gml><this>is not<kml/></this>is also not</gml>", &errors);
ASSERT_FALSE(root);
ASSERT_FALSE(errors.empty());
errors.clear();
root = Parse("<gml>"
"<Placemark><name>still not kml</name></Placemark>"
"</gml>",
&errors);
ASSERT_FALSE(root);
ASSERT_FALSE(errors.empty());
}
TEST(ParserTest, TestPartlyValidKml) {
// This pushes several elements onto the stack within the parser to
// excercise the destructor which frees them all.
string errors;
ElementPtr root = Parse("<kml>"
"<Folder>"
"<Document>"
"<Placemark>"
"<name>a good Placemark</name>"
"<MultiGeometry>"
"<MultiGeometry>"
"<Point>"
"<coordinates>",
&errors);
ASSERT_FALSE(root);
ASSERT_FALSE(errors.empty());
}
TEST(ParserTest, TestKmlWithUnknownEmptyFields) {
// Note that the unknown element handling logic still engages expat handlers
// hence nil elements (<c/>) are turned into <c></c>. Note also the newline
// added by the unknown element handler.
const string kUnknownXml("<a>b<c></c></a>\n");
const string kKml(
string("<kml>") + kUnknownXml + "</kml>");
ElementPtr root = Parse(kKml, NULL);
ASSERT_TRUE(root);
ASSERT_EQ(static_cast<size_t>(1), root->get_unknown_elements_array_size());
ASSERT_EQ(kUnknownXml, root->get_unknown_elements_array_at(0));
}
TEST(ParserTest, TestParseAtomOnJunk) {
ASSERT_FALSE(ParseAtom("junk", NULL));
}
TEST(ParserTest, TestBasicParseAtomError) {
string errors;
ElementPtr root = ParseAtom("<feed xmlns='http://www.w3.org/2005/Atom'>",
&errors);
ASSERT_FALSE(root.get());
ASSERT_FALSE(errors.empty());
}
TEST(ParserTest, TestBasicParseAtom) {
string errors;
ElementPtr root = ParseAtom("<feed xmlns='http://www.w3.org/2005/Atom'/>",
&errors);
ASSERT_TRUE(errors.empty());
ASSERT_TRUE(root.get());
ASSERT_TRUE(AsAtomFeed(root));
ASSERT_EQ(kmlbase::XMLNS_ATOM, root->get_xmlns());
}
TEST(ParserTest, TestBasicParseAtomWithKml) {
ElementPtr root = ParseAtom(
"<atom:content xmlns:atom='http://www.w3.org/2005/Atom'>"
" xmlns='http://www.opengis.net/kml/2.2'>"
"<Placemark id='pm0'/>"
"</atom:content>", NULL);
ASSERT_TRUE(root.get());
kmldom::AtomContentPtr content = kmldom::AsAtomContent(root);
ASSERT_TRUE(content.get());
ASSERT_EQ(static_cast<size_t>(1),
content->get_misplaced_elements_array_size());
kmldom::PlacemarkPtr placemark =
kmldom::AsPlacemark(content->get_misplaced_elements_array_at(0));
ASSERT_EQ(string("pm0"), placemark->get_id());
}
} // end namespace kmldom
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