/*
* 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.jena.atlas.io;
import java.io.ByteArrayOutputStream ;
import java.io.IOException ;
import java.io.OutputStreamWriter ;
import java.io.Writer ;
import org.apache.jena.atlas.io.OutputUtils ;
import org.apache.jena.atlas.junit.BaseTest ;
import org.junit.Test ;
public class TestPrintUtils extends BaseTest
{
@Test public void hex1()
{
String s = test(0,4) ;
assertEquals("0000", s) ;
}
@Test public void hex2()
{
String s = test(1,8) ;
assertEquals("00000001", s) ;
}
@Test public void hex3()
{
String s = test(0xFF,2) ;
assertEquals("FF", s) ;
}
private static String test(int value, int width)
{
ByteArrayOutputStream x = new ByteArrayOutputStream() ;
Writer out = new OutputStreamWriter(x) ;
OutputUtils.printHex(out, value, width) ;
try { out.flush() ; } catch (IOException ex) {}
String s = x.toString() ;
return s ;
}
}