com.googlecode.catchexception.apis.internal.hamcrest.ExceptionMessageMatcher Maven / Gradle / Ivy
/**
* Copyright (C) 2011 [email protected]
*
* 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 com.googlecode.catchexception.apis.internal.hamcrest;
import org.hamcrest.BaseMatcher;
import org.hamcrest.CoreMatchers;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
/**
*
* Creates a {@link Matcher matcher} that matches an exception with a certain
* message.
*
* @author rwoo
*
* @param
* an exception subclass
*/
public class ExceptionMessageMatcher extends
BaseMatcher {
/**
* The string matcher that shall match exception message.
*/
private Matcher expectedMessageMatcher;
/**
* @param expectedMessage
* the expected exception message
*/
public ExceptionMessageMatcher(String expectedMessage) {
super();
this.expectedMessageMatcher = CoreMatchers.is(expectedMessage);
}
/**
* @param expectedMessageMatcher
* a string matcher that shall match the exception message
*/
public ExceptionMessageMatcher(Matcher expectedMessageMatcher) {
super();
this.expectedMessageMatcher = expectedMessageMatcher;
}
/*
* (non-Javadoc)
*
* @see org.hamcrest.Matcher#matches(java.lang.Object)
*/
public boolean matches(Object obj) {
if (!(obj instanceof Exception))
return false;
Exception exception = (Exception) obj;
String foundMessage = exception.getMessage();
return expectedMessageMatcher.matches(foundMessage);
}
/*
* (non-Javadoc)
*
* @see org.hamcrest.SelfDescribing#describeTo(org.hamcrest.Description)
*/
public void describeTo(Description description) {
description.appendText("has a message that ").appendDescriptionOf(
expectedMessageMatcher);
}
}