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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.qpid.test.framework;
import java.util.LinkedList;
import java.util.List;
/**
* AssertionBase is a base class for implenmenting assertions. It provides a mechanism to store error messages, and
* report all error messages when its {@link #toString()} method is called.
*
* <p/><table id="crc"><caption>CRC Card</caption>
* <tr><th> Responsibilities <th> Collaborations
* <tr><td> Collect error messages.
* </table>
*/
public abstract class AssertionBase implements Assertion
{
/** Holds the error messages. */
List<String> errors = new LinkedList<String>();
/**
* Adds an error message to the assertion.
*
* @param error An error message to add to the assertion.
*/
public void addError(String error)
{
errors.add(error);
}
/**
* Prints all of the error messages in the assertion into a string.
*
* @return All of the error messages in the assertion as a string.
*/
public String toString()
{
String result = "";
for (String error : errors)
{
result += error;
}
return result;
}
}
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