| /* |
| * 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.logging.log4j.util; |
| |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * |
| */ |
| public class CharsTest { |
| @Test |
| public void invalidDigitReturnsNullCharacter() throws Exception { |
| assertEquals('\0', Chars.getUpperCaseHex(-1)); |
| assertEquals('\0', Chars.getUpperCaseHex(16)); |
| assertEquals('\0', Chars.getUpperCaseHex(400)); |
| assertEquals('\0', Chars.getLowerCaseHex(-1)); |
| assertEquals('\0', Chars.getLowerCaseHex(16)); |
| assertEquals('\0', Chars.getLowerCaseHex(400)); |
| } |
| |
| @Test |
| public void validDigitReturnsProperCharacter() throws Exception { |
| final char[] expectedLower = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'}; |
| final char[] expectedUpper = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'}; |
| for (int i = 0; i < 16; i++) { |
| assertEquals(String.format("Expected %x", i), expectedLower[i], Chars.getLowerCaseHex(i)); |
| assertEquals(String.format("Expected %X", i), expectedUpper[i], Chars.getUpperCaseHex(i)); |
| } |
| } |
| } |