/*
* Copyright 2002-2012 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.test.web.client.match;
import java.io.IOException;
import java.net.URI;
import java.util.List;
import java.util.Map;
import javax.xml.xpath.XPathExpressionException;
import org.hamcrest.Matcher;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.client.ClientHttpRequest;
import org.springframework.test.util.AssertionErrors;
import org.springframework.test.web.client.MockRestServiceServer;
import org.springframework.test.web.client.RequestMatcher;
import org.springframework.util.Assert;
import static org.springframework.test.util.AssertionErrors.*;
import static org.springframework.test.util.MatcherAssertionErrors.*;
/**
* Static, factory methods for {@link RequestMatcher} classes. Typically used to
* provide input for {@link MockRestServiceServer#expect(RequestMatcher)}.
*
* <p><strong>Eclipse users:</strong> consider adding this class as a Java editor
* favorite. To navigate, open the Preferences and type "favorites".
*
* @author Craig Walls
* @author Rossen Stoyanchev
* @since 3.2
*/
public abstract class MockRestRequestMatchers {
/**
* Private class constructor.
*/
private MockRestRequestMatchers() {
}
/**
* Match to any request.
*/
public static RequestMatcher anything() {
return new RequestMatcher() {
@Override
public void match(ClientHttpRequest request) throws AssertionError {
}
};
}
/**
* Assert the request URI string with the given matcher.
*
* @param matcher String matcher for the expected URI
* @return the request matcher
*/
public static RequestMatcher requestTo(final Matcher<String> matcher) {
Assert.notNull(matcher, "'matcher' must not be null");
return new RequestMatcher() {
@Override
public void match(ClientHttpRequest request) throws IOException, AssertionError {
assertThat("Request URI", request.getURI().toString(), matcher);
}
};
}
/**
* Assert the request URI string.
*
* @param expectedUri the expected URI
* @return the request matcher
*/
public static RequestMatcher requestTo(final String expectedUri) {
Assert.notNull(expectedUri, "'uri' must not be null");
return new RequestMatcher() {
@Override
public void match(ClientHttpRequest request) throws IOException, AssertionError {
assertEquals("Request URI", expectedUri, request.getURI().toString());
}
};
}
/**
* Assert the {@link HttpMethod} of the request.
*
* @param method the HTTP method
* @return the request matcher
*/
public static RequestMatcher method(final HttpMethod method) {
Assert.notNull(method, "'method' must not be null");
return new RequestMatcher() {
@Override
public void match(ClientHttpRequest request) throws AssertionError {
AssertionErrors.assertEquals("Unexpected HttpMethod", method, request.getMethod());
}
};
}
/**
* Expect a request to the given URI.
*
* @param uri the expected URI
* @return the request matcher
*/
public static RequestMatcher requestTo(final URI uri) {
Assert.notNull(uri, "'uri' must not be null");
return new RequestMatcher() {
@Override
public void match(ClientHttpRequest request) throws IOException, AssertionError {
AssertionErrors.assertEquals("Unexpected request", uri, request.getURI());
}
};
}
/**
* Assert request header values with the given Hamcrest matcher.
*/
@SuppressWarnings("unchecked")
public static RequestMatcher header(final String name, final Matcher<? super String>... matchers) {
return new RequestMatcher() {
@Override
public void match(ClientHttpRequest request) {
assertHeaderValueCount(name, request.getHeaders(), matchers.length);
for (int i = 0 ; i < matchers.length; i++) {
assertThat("Request header", request.getHeaders().get(name).get(i), matchers[i]);
}
}
};
}
/**
* Assert request header values.
*/
public static RequestMatcher header(final String name, final String... expectedValues) {
return new RequestMatcher() {
@Override
public void match(ClientHttpRequest request) {
assertHeaderValueCount(name, request.getHeaders(), expectedValues.length);
for (int i = 0 ; i < expectedValues.length; i++) {
assertEquals("Request header + [" + name + "]",
expectedValues[i], request.getHeaders().get(name).get(i));
}
}
};
}
private static void assertHeaderValueCount(final String name, HttpHeaders headers, int expectedCount) {
List<String> actualValues = headers.get(name);
AssertionErrors.assertTrue("Expected header <" + name + ">", actualValues != null);
AssertionErrors.assertTrue("Expected header <" + name + "> to have at least <" + expectedCount
+ "> values but found " + actualValues, expectedCount <= actualValues.size());
}
/**
* Access to request body matchers.
*/
public static ContentRequestMatchers content() {
return new ContentRequestMatchers();
}
/**
* Access to request body matchers using a <a
* href="http://goessner.net/articles/JsonPath/">JSONPath</a> expression to
* inspect a specific subset of the body. The JSON path expression can be a
* parameterized string using formatting specifiers as defined in
* {@link String#format(String, Object...)}.
*
* @param expression the JSON path optionally parameterized with arguments
* @param args arguments to parameterize the JSON path expression with
*/
public static JsonPathRequestMatchers jsonPath(String expression, Object ... args) {
return new JsonPathRequestMatchers(expression, args);
}
/**
* Access to request body matchers using a <a
* href="http://goessner.net/articles/JsonPath/">JSONPath</a> expression to
* inspect a specific subset of the body and a Hamcrest match for asserting
* the value found at the JSON path.
*
* @param expression the JSON path expression
* @param matcher a matcher for the value expected at the JSON path
*/
public static <T> RequestMatcher jsonPath(String expression, Matcher<T> matcher) {
return new JsonPathRequestMatchers(expression).value(matcher);
}
/**
* Access to request body matchers using an XPath to inspect a specific
* subset of the body. The XPath expression can be a parameterized string
* using formatting specifiers as defined in
* {@link String#format(String, Object...)}.
*
* @param expression the XPath optionally parameterized with arguments
* @param args arguments to parameterize the XPath expression with
*/
public static XpathRequestMatchers xpath(String expression, Object... args) throws XPathExpressionException {
return new XpathRequestMatchers(expression, null, args);
}
/**
* Access to response body matchers using an XPath to inspect a specific
* subset of the body. The XPath expression can be a parameterized string
* using formatting specifiers as defined in
* {@link String#format(String, Object...)}.
*
* @param expression the XPath optionally parameterized with arguments
* @param namespaces namespaces referenced in the XPath expression
* @param args arguments to parameterize the XPath expression with
*/
public static XpathRequestMatchers xpath(String expression, Map<String, String> namespaces, Object... args)
throws XPathExpressionException {
return new XpathRequestMatchers(expression, namespaces, args);
}
}