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/**
* 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.
*
* Copyright 2012-2014 the original author or authors.
*/
package org.assertj.core.internal;
import static org.assertj.core.error.ShouldBeEqual.shouldBeEqual;
import static org.assertj.core.error.ShouldBeSingleXmlNode.shouldBeSingleXmlNodeBut;
import static org.assertj.core.error.ShouldBeXmlAttribute.shouldBeAttributeBut;
import static org.assertj.core.error.ShouldBeXmlComment.shouldBeCommentBut;
import static org.assertj.core.error.ShouldBeXmlElement.shouldBeElementBut;
import static org.assertj.core.error.ShouldBeXmlTextNode.shouldBeTextNodeBut;
import java.util.ArrayList;
import java.util.List;
import org.assertj.core.api.AssertionInfo;
import org.assertj.core.api.WritableAssertionInfo;
import org.assertj.core.error.ShouldBeEmpty;
import org.assertj.core.error.ShouldBeXml;
import org.assertj.core.util.Preconditions;
import org.assertj.core.util.xml.XmlUtil;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* Reusable assertions for xml nodes.
*
* @author Michał Piotrkowski
*/
public class Xmls {
private static final Xmls INSTANCE = new Xmls();
private Objects objects = Objects.instance();
private Failures failures = Failures.instance();
private Iterables iterables = new Iterables(new XmlNodesComparisionStrategy());
public static Xmls instance() {
return INSTANCE;
}
public void assertHasSize(AssertionInfo info, NodeList nodeList, int expectedSize) {
CommonValidations.checkSizes(actualNodes(nodeList), nodeList.getLength(), expectedSize, info);
}
public void assertIsEmpty(AssertionInfo info, NodeList nodeList) throws AssertionError {
if (nodeList.getLength() != 0)
throw failures.failure(info, ShouldBeEmpty.shouldBeEmpty(actualNodes(nodeList)));
}
public NodeList assertIsXml(AssertionInfo info, CharSequence actual) throws AssertionError {
objects.assertNotNull(info, actual);
try {
return asXml(actual);
} catch (Exception e) {
throw failures.failure(info, ShouldBeXml.shouldBeXml(actual));
}
}
private NodeList asXml(CharSequence actual) {
return XmlUtil.nodeList(XmlUtil.toXml(actual.toString()));
}
public void assertIsSingleNode(AssertionInfo info, NodeList actual) {
if (actual.getLength() > 1 ){
throw failures.failure(info, shouldBeSingleXmlNodeBut("multiple nodes"));
} else if(actual.getLength() < 1){
throw failures.failure(info, shouldBeSingleXmlNodeBut("no nodes"));
}
}
public void failNotElementBut(AssertionInfo info, String reason) {
throw failures.failure(info, shouldBeElementBut(reason));
}
public void failNotAttributeBut(AssertionInfo info, String reason) {
throw failures.failure(info, shouldBeAttributeBut(reason));
}
public void failNotCommentBut(AssertionInfo info, String reason) {
throw failures.failure(info, shouldBeCommentBut(reason));
}
public void failNotTextNodeBut(AssertionInfo info, String reason) {
throw failures.failure(info, shouldBeTextNodeBut(reason));
}
public void assertEqual(AssertionInfo info, Node actual, String expectedXml) {
Node expected = XmlUtil.parseNode(expectedXml);
if(!XmlUtil.areEqual(expected, actual)){
throw failures.failure(info, shouldBeEqual(actual, expected, info.representation()));
}
}
public void assertContains(AssertionInfo info, NodeList actual, String... nodes) {
List<Node> actualNodes = actualNodes(actual);
List<Node> expectedNodes = expectedNodes(nodes);
iterables.assertContains(info, actualNodes, expectedNodes.toArray());
}
public void assertContainsExactly(AssertionInfo info, NodeList actual, String... nodes) {
List<Node> actualNodes = actualNodes(actual);
List<Node> expectedNodes = expectedNodes(nodes);
iterables.assertContainsExactly(info, actualNodes, expectedNodes.toArray());
}
public void assertContainsOnly(WritableAssertionInfo info, NodeList actual, String... nodes) {
List<Node> actualNodes = actualNodes(actual);
List<Node> expectedNodes = expectedNodes(nodes);
iterables.assertContainsOnly(info, actualNodes, expectedNodes.toArray());
}
public List<Node> expectedNodes(String... nodes) {
Preconditions.checkNotNull(nodes, "Expected node cannot be null!");
List<Node> expectedNodes = new ArrayList<Node>();
for (String xml : nodes) {
Preconditions.checkNotNull(xml, "Expected node cannot be null!");
expectedNodes.add(XmlUtil.parseNode(xml));
}
return expectedNodes;
}
private List<Node> actualNodes(NodeList nodeList) {
List<Node> result = new ArrayList<Node>();
for(int i=0; i<nodeList.getLength(); i++){
result.add(nodeList.item(i));
}
return result;
}
private final class XmlNodesComparisionStrategy extends StandardComparisonStrategy {
public boolean areEqual(Object actual, Object other) {
if(actual instanceof Node){
Node left = (Node) actual;
Node right = (Node) other;
return XmlUtil.areEqual(left, right);
}
return super.areEqual(actual, other);
}
}
}