| /* |
| * 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. |
| */ |
| |
| /** |
| * @author Vladimir N. Molotkov |
| * @version $Revision$ |
| */ |
| |
| package org.apache.harmony.security.tests.support; |
| |
| import java.util.Properties; |
| |
| /** |
| * Test utility class |
| */ |
| public class TestUtils { |
| |
| /** |
| * No need to instantiate |
| */ |
| private TestUtils() { |
| } |
| |
| /** |
| * Prints byte array <code>data</code> as hex to the |
| * <code>System.out</code> in the customizable form. |
| * |
| * @param perLine how many numbers put on single line |
| * @param prefix custom output number prefix |
| * @param delimiter custom output number delimiter |
| * @param data data to be printed |
| */ |
| public static void printAsHex(int perLine, |
| String prefix, |
| String delimiter, |
| byte[] data) { |
| for (int i=0; i<data.length; i++) { |
| String tail = Integer.toHexString(0x000000ff & data[i]); |
| if (tail.length() == 1) { |
| tail = "0" + tail; |
| } |
| System.out.print(prefix + "0x" + tail + delimiter); |
| |
| if (((i+1)%perLine) == 0) { |
| System.out.println(""); |
| } |
| } |
| System.out.println(""); |
| } |
| |
| /** |
| * Sets system property |
| * |
| * @param key - the name of the system property. |
| * @param value - the value to be set |
| */ |
| public static void setSystemProperty(String key, String value) { |
| Properties properties = System.getProperties(); |
| if (value == null) { |
| properties.remove(key); |
| } else { |
| properties.setProperty(key, value); |
| } |
| System.setProperties(properties); |
| } |
| } |