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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 javax.jdo.util;
import java.io.PrintStream;
import javax.jdo.Constants;
import junit.framework.TestCase;
/** */
public abstract class AbstractTest extends TestCase implements Constants {
/** */
protected static PrintStream out = System.out;
/** If true, print extra messages. */
protected boolean verbose;
/**
* Construct and initialize from properties.
*/
protected AbstractTest() {
super(null);
verbose = Boolean.getBoolean("verbose");
}
/**
* Determine if a class is loadable in the current environment.
*/
protected static boolean isClassLoadable(String className) {
try {
Class.forName(className);
return true;
} catch (ClassNotFoundException ex) {
return false;
}
}
/**
*/
protected void println(String s) {
if (verbose)
out.println(s);
}
/** New line.
*/
public static final String NL = System.getProperty("line.separator");
/** A buffer of of error messages.
*/
protected static StringBuffer messages;
/** Appends to error messages.
*/
protected static synchronized void appendMessage(String message) {
if (message != null) {
if (messages == null) {
messages = new StringBuffer();
}
messages.append(message);
messages.append(NL);
}
}
/**
* Returns collected error messages, or <code>null</code> if there
* are none, and clears the buffer.
*/
protected static synchronized String retrieveMessages() {
if (messages == null) {
return null;
}
final String msg = messages.toString();
messages = null;
return msg;
}
/**
* Fail the test if there are any error messages.
*/
protected void failOnError() {
String errors = retrieveMessages();
if (errors != null) {
fail (errors);
}
}
}
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