/*
* Copyright 2005-2016 the original author or authors.
*
* 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.
*/
package org.springframework.xml.xpath;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;
import org.springframework.util.StringUtils;
public abstract class AbstractXPathExpressionFactoryTestCase {
private Document noNamespacesDocument;
private Document namespacesDocument;
private Map<String, String> namespaces = new HashMap<String, String>();
@Before
public void setUp() throws Exception {
namespaces.put("prefix1", "namespace1");
namespaces.put("prefix2", "namespace2");
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
documentBuilderFactory.setNamespaceAware(true);
DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
InputStream inputStream = getClass().getResourceAsStream("nonamespaces.xml");
try {
noNamespacesDocument = documentBuilder.parse(inputStream);
}
finally {
inputStream.close();
}
inputStream = getClass().getResourceAsStream("namespaces.xml");
try {
namespacesDocument = documentBuilder.parse(inputStream);
}
finally {
inputStream.close();
}
}
@Test
public void testThatToStringReturnsOriginalXpathExpression() {
XPathExpression expression = createXPathExpression("/prefix1:root/prefix2:otherchild", namespaces);
Assert.assertEquals("/prefix1:root/prefix2:otherchild", expression.toString());
}
@Test
public void testEvaluateAsBooleanInvalidNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/prefix1:root/prefix2:otherchild", namespaces);
boolean result = expression.evaluateAsBoolean(namespacesDocument);
Assert.assertFalse("Invalid result [" + result + "]", result);
}
@Test
public void testEvaluateAsBooleanInvalidNoNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/root/otherchild");
boolean result = expression.evaluateAsBoolean(noNamespacesDocument);
Assert.assertFalse("Invalid result [" + result + "]", result);
}
@Test
public void testEvaluateAsBooleanNamespaces() throws IOException, SAXException {
XPathExpression expression =
createXPathExpression("/prefix1:root/prefix2:child/prefix2:boolean/text()", namespaces);
boolean result = expression.evaluateAsBoolean(namespacesDocument);
Assert.assertTrue("Invalid result", result);
}
@Test
public void testEvaluateAsBooleanNoNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/root/child/boolean/text()");
boolean result = expression.evaluateAsBoolean(noNamespacesDocument);
Assert.assertTrue("Invalid result", result);
}
@Test
public void testEvaluateAsDoubleInvalidNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/prefix1:root/prefix2:otherchild", namespaces);
double result = expression.evaluateAsNumber(noNamespacesDocument);
Assert.assertTrue("Invalid result [" + result + "]", Double.isNaN(result));
}
@Test
public void testEvaluateAsDoubleInvalidNoNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/root/otherchild");
double result = expression.evaluateAsNumber(noNamespacesDocument);
Assert.assertTrue("Invalid result [" + result + "]", Double.isNaN(result));
}
@Test
public void testEvaluateAsDoubleNamespaces() throws IOException, SAXException {
XPathExpression expression =
createXPathExpression("/prefix1:root/prefix2:child/prefix2:number/text()", namespaces);
double result = expression.evaluateAsNumber(namespacesDocument);
Assert.assertEquals("Invalid result", 42D, result, 0D);
}
@Test
public void testEvaluateAsDoubleNoNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/root/child/number/text()");
double result = expression.evaluateAsNumber(noNamespacesDocument);
Assert.assertEquals("Invalid result", 42D, result, 0D);
}
@Test
public void testEvaluateAsNodeInvalidNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/prefix1:root/prefix2:otherchild", namespaces);
Node result = expression.evaluateAsNode(namespacesDocument);
Assert.assertNull("Invalid result [" + result + "]", result);
}
@Test
public void testEvaluateAsNodeInvalidNoNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/root/otherchild");
Node result = expression.evaluateAsNode(noNamespacesDocument);
Assert.assertNull("Invalid result [" + result + "]", result);
}
@Test
public void testEvaluateAsNodeNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/prefix1:root/prefix2:child", namespaces);
Node result = expression.evaluateAsNode(namespacesDocument);
Assert.assertNotNull("Invalid result", result);
Assert.assertEquals("Invalid localname", "child", result.getLocalName());
}
@Test
public void testEvaluateAsNodeNoNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/root/child");
Node result = expression.evaluateAsNode(noNamespacesDocument);
Assert.assertNotNull("Invalid result", result);
Assert.assertEquals("Invalid localname", "child", result.getLocalName());
}
@Test
public void testEvaluateAsNodeListNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/prefix1:root/prefix2:child/*", namespaces);
List<Node> results = expression.evaluateAsNodeList(namespacesDocument);
Assert.assertNotNull("Invalid result", results);
Assert.assertEquals("Invalid amount of results", 3, results.size());
}
@Test
public void testEvaluateAsNodeListNoNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/root/child/*");
List<Node> results = expression.evaluateAsNodeList(noNamespacesDocument);
Assert.assertNotNull("Invalid result", results);
Assert.assertEquals("Invalid amount of results", 3, results.size());
}
@Test
public void testEvaluateAsStringInvalidNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/prefix1:root/prefix2:otherchild", namespaces);
String result = expression.evaluateAsString(namespacesDocument);
Assert.assertFalse("Invalid result [" + result + "]", StringUtils.hasText(result));
}
@Test
public void testEvaluateAsStringInvalidNoNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/root/otherchild");
String result = expression.evaluateAsString(noNamespacesDocument);
Assert.assertFalse("Invalid result [" + result + "]", StringUtils.hasText(result));
}
@Test
public void testEvaluateAsStringNamespaces() throws IOException, SAXException {
XPathExpression expression =
createXPathExpression("/prefix1:root/prefix2:child/prefix2:text/text()", namespaces);
String result = expression.evaluateAsString(namespacesDocument);
Assert.assertEquals("Invalid result", "text", result);
}
@Test
public void testEvaluateAsStringNoNamespaces() throws IOException, SAXException {
XPathExpression expression = createXPathExpression("/root/child/text/text()");
String result = expression.evaluateAsString(noNamespacesDocument);
Assert.assertEquals("Invalid result", "text", result);
}
@Test
public void testEvaluateAsObject() throws Exception {
XPathExpression expression = createXPathExpression("/root/child");
String result = expression.evaluateAsObject(noNamespacesDocument, new NodeMapper<String>() {
public String mapNode(Node node, int nodeNum) throws DOMException {
return node.getLocalName();
}
});
Assert.assertNotNull("Invalid result", result);
Assert.assertEquals("Invalid localname", "child", result);
}
@Test
public void testEvaluate() throws Exception {
XPathExpression expression = createXPathExpression("/root/child/*");
List<String> results = expression.evaluate(noNamespacesDocument, new NodeMapper<String>() {
public String mapNode(Node node, int nodeNum) throws DOMException {
return node.getLocalName();
}
});
Assert.assertNotNull("Invalid result", results);
Assert.assertEquals("Invalid amount of results", 3, results.size());
Assert.assertEquals("Invalid first result", "text", results.get(0));
Assert.assertEquals("Invalid first result", "number", results.get(1));
Assert.assertEquals("Invalid first result", "boolean", results.get(2));
}
@Test
public void testInvalidExpression() {
try {
createXPathExpression("\\");
Assert.fail("No XPathParseException thrown");
}
catch (XPathParseException ex) {
// Expected behaviour
}
}
protected abstract XPathExpression createXPathExpression(String expression);
protected abstract XPathExpression createXPathExpression(String expression, Map<String, String> namespaces);
}