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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.
*/
/* $Id$ */
package org.apache.fop.util;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* Test case for the conversion of characters into hex-encoded strings.
*/
public class HexEncoderTestCase {
/**
* Tests that characters are properly encoded into hex strings.
*/
@Test
public void testEncodeChar() {
char[] digits = new char[] {'0', '0', '0', '0'};
for (int c = 0; c <= 0xFFFF; c++) {
assertEquals(new String(digits), HexEncoder.encode((char) c));
increment(digits);
}
}
private static void increment(char[] digits) {
int d = 4;
do {
d--;
digits[d] = successor(digits[d]);
} while (digits[d] == '0' && d > 0);
}
private static char successor(char d) {
if (d == '9') {
return 'A';
} else if (d == 'F') {
return '0';
} else {
return (char) (d + 1);
}
}
}
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