/*
* *************************************************************************************
* Copyright (C) 2008 EsperTech, Inc. All rights reserved. *
* http://esper.codehaus.org *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
* *************************************************************************************
*/
package com.espertech.esper.util;
import junit.framework.TestCase;
import java.io.StringWriter;
import java.io.PrintWriter;
public class TestIndentWriter extends TestCase
{
private final static String NEWLINE = System.getProperty("line.separator");
private StringWriter buf;
private IndentWriter writer;
public void setUp()
{
buf = new StringWriter();
writer = new IndentWriter(new PrintWriter(buf), 0, 2);
}
public void testWrite()
{
writer.println("a");
assertWritten("a");
writer.incrIndent();
writer.println("a");
assertWritten(" a");
writer.incrIndent();
writer.println("a");
assertWritten(" a");
writer.decrIndent();
writer.println("a");
assertWritten(" a");
writer.decrIndent();
writer.println("a");
assertWritten("a");
writer.decrIndent();
writer.println("a");
assertWritten("a");
}
public void testCtor()
{
try
{
new IndentWriter(new PrintWriter(buf), 0, -1);
fail();
}
catch (IllegalArgumentException ex)
{
// expected
}
try
{
new IndentWriter(new PrintWriter(buf), -1, 11);
fail();
}
catch (IllegalArgumentException ex)
{
// expected
}
}
private void assertWritten(String text)
{
assertEquals(text + NEWLINE, buf.toString());
StringBuffer buffer = buf.getBuffer();
buf.getBuffer().delete(0, buffer.length());
}
}