1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.commons.jexl3.examples; 19 20 import org.junit.Assert; 21 22 /** 23 * Abstracts using a test within Junit or through a main method. 24 */ 25 public abstract class Output { 26 /** 27 * Creates an output using System.out. 28 */ 29 private Output() { 30 // nothing to do 31 } 32 33 /** 34 * Outputs the actual and value or checks the actual equals the expected value. 35 * @param expr the message to output 36 * @param actual the actual value to output 37 * @param expected the expected value 38 */ 39 public abstract void print(String expr, Object actual, Object expected); 40 41 /** 42 * The output instance for Junit TestCase calling assertEquals. 43 */ 44 public static final Output JUNIT = new Output() { 45 @Override 46 public void print(final String expr, final Object actual, final Object expected) { 47 Assert.assertEquals(expr, expected, actual); 48 } 49 }; 50 51 52 /** 53 * The output instance for the general outputing to System.out. 54 */ 55 public static final Output SYSTEM = new Output() { 56 @Override 57 public void print(final String expr, final Object actual, final Object expected) { 58 System.out.print(expr); 59 System.out.println(actual); 60 } 61 }; 62 }