org.springframework.test.web.client.match.XpathRequestMatchers Maven / Gradle / Ivy
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/*
* Copyright 2002-2020 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
*
* https://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.test.web.client.match;
import java.util.Map;
import javax.xml.xpath.XPathExpressionException;
import org.hamcrest.Matcher;
import org.w3c.dom.Node;
import org.springframework.http.client.ClientHttpRequest;
import org.springframework.lang.Nullable;
import org.springframework.mock.http.client.MockClientHttpRequest;
import org.springframework.test.util.XpathExpectationsHelper;
import org.springframework.test.web.client.RequestMatcher;
/**
* Factory methods for request content {@code RequestMatcher} implementations
* that use an XPath expression.
*
* An instance of this class is typically accessed via
* {@link MockRestRequestMatchers#xpath(String, Object...)} or
* {@link MockRestRequestMatchers#xpath(String, Map, Object...)}.
*
* @author Rossen Stoyanchev
* @author Sam Brannen
* @since 3.2
*/
public class XpathRequestMatchers {
private static final String DEFAULT_ENCODING = "UTF-8";
private final XpathExpectationsHelper xpathHelper;
/**
* Class constructor, not for direct instantiation.
*
Use {@link MockRestRequestMatchers#xpath(String, Object...)} or
* {@link MockRestRequestMatchers#xpath(String, Map, Object...)}.
* @param expression the XPath expression
* @param namespaces the XML namespaces referenced in the XPath expression, or {@code null}
* @param args arguments to parameterize the XPath expression with, using the
* formatting specifiers defined in {@link String#format(String, Object...)}
* @throws XPathExpressionException if expression compilation failed
*/
protected XpathRequestMatchers(String expression, @Nullable Map namespaces, Object... args)
throws XPathExpressionException {
this.xpathHelper = new XpathExpectationsHelper(expression, namespaces, args);
}
/**
* Apply the XPath and assert it with the given {@code Matcher}.
*/
public RequestMatcher node(Matcher matcher) {
return (XpathRequestMatcher) request ->
this.xpathHelper.assertNode(request.getBodyAsBytes(), DEFAULT_ENCODING, matcher);
}
/**
* Assert that content exists at the given XPath.
*/
public RequestMatcher exists() {
return (XpathRequestMatcher) request ->
this.xpathHelper.exists(request.getBodyAsBytes(), DEFAULT_ENCODING);
}
/**
* Assert that content does not exist at the given XPath.
*/
public RequestMatcher doesNotExist() {
return (XpathRequestMatcher) request ->
this.xpathHelper.doesNotExist(request.getBodyAsBytes(), DEFAULT_ENCODING);
}
/**
* Apply the XPath and assert the number of nodes found with the given
* {@code Matcher}.
*/
public RequestMatcher nodeCount(Matcher matcher) {
return (XpathRequestMatcher) request ->
this.xpathHelper.assertNodeCount(request.getBodyAsBytes(), DEFAULT_ENCODING, matcher);
}
/**
* Apply the XPath and assert the number of nodes found.
*/
public RequestMatcher nodeCount(int expectedCount) {
return (XpathRequestMatcher) request ->
this.xpathHelper.assertNodeCount(request.getBodyAsBytes(), DEFAULT_ENCODING, expectedCount);
}
/**
* Apply the XPath and assert the String content found with the given matcher.
*/
public RequestMatcher string(Matcher matcher) {
return (XpathRequestMatcher) request ->
this.xpathHelper.assertString(request.getBodyAsBytes(), DEFAULT_ENCODING, matcher);
}
/**
* Apply the XPath and assert the String content found.
*/
public RequestMatcher string(String content) {
return (XpathRequestMatcher) request ->
this.xpathHelper.assertString(request.getBodyAsBytes(), DEFAULT_ENCODING, content);
}
/**
* Apply the XPath and assert the number found with the given matcher.
*/
public RequestMatcher number(Matcher matcher) {
return (XpathRequestMatcher) request ->
this.xpathHelper.assertNumber(request.getBodyAsBytes(), DEFAULT_ENCODING, matcher);
}
/**
* Apply the XPath and assert the number value found.
*/
public RequestMatcher number(Double value) {
return (XpathRequestMatcher) request ->
this.xpathHelper.assertNumber(request.getBodyAsBytes(), DEFAULT_ENCODING, value);
}
/**
* Apply the XPath and assert the boolean value found.
*/
public RequestMatcher booleanValue(Boolean value) {
return (XpathRequestMatcher) request ->
this.xpathHelper.assertBoolean(request.getBodyAsBytes(), DEFAULT_ENCODING, value);
}
/**
* Functional interface for XPath {@link RequestMatcher} implementations.
*/
@FunctionalInterface
private interface XpathRequestMatcher extends RequestMatcher {
@Override
default void match(ClientHttpRequest request) {
try {
matchInternal((MockClientHttpRequest) request);
}
catch (Exception ex) {
throw new AssertionError("Failed to parse XML request content", ex);
}
}
void matchInternal(MockClientHttpRequest request) throws Exception;
}
}