1 /* 2 * Copyright 2001-2009 OFFIS, Tammo Freese 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package org.easymock.internal.matchers; 17 18 import java.io.Serializable; 19 20 import org.easymock.IArgumentMatcher; 21 22 public class EqualsWithDelta implements IArgumentMatcher, Serializable { 23 24 private static final long serialVersionUID = -3018631689416120154L; 25 26 private final Number expected; 27 28 private final Number delta; 29 30 public EqualsWithDelta(Number value, Number delta) { 31 this.expected = value; 32 this.delta = delta; 33 } 34 35 public boolean matches(Object actual) { 36 Number actualNumber = (Number) actual; 37 return expected.doubleValue() - delta.doubleValue() <= actualNumber 38 .doubleValue() 39 && actualNumber.doubleValue() <= expected.doubleValue() 40 + delta.doubleValue(); 41 } 42 43 public void appendTo(StringBuffer buffer) { 44 buffer.append("eq(" + expected + ", " + delta + ")"); 45 } 46 } 47
