001 /* 002 * Created on Oct 22, 2010 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with 005 * the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on 010 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the 011 * specific language governing permissions and limitations under the License. 012 * 013 * Copyright @2010-2011 the original author or authors. 014 */ 015 package org.fest.assertions.internal; 016 017 import static org.fest.assertions.error.ShouldNotBeEqual.shouldNotBeEqual; 018 import static org.fest.assertions.error.ShouldBeEqual.shouldBeEqual; 019 020 import org.fest.assertions.core.AssertionInfo; 021 import org.fest.util.VisibleForTesting; 022 023 /** 024 * Reusable assertions for <code>{@link Boolean}</code>s. 025 * 026 * @author Alex Ruiz 027 */ 028 public class Booleans { 029 030 private static final Booleans INSTANCE = new Booleans(); 031 032 /** 033 * Returns the singleton instance of this class. 034 * @return the singleton instance of this class. 035 */ 036 public static Booleans instance() { 037 return INSTANCE; 038 } 039 040 @VisibleForTesting Failures failures = Failures.instance(); 041 042 @VisibleForTesting Booleans() {} 043 044 /** 045 * Asserts that two booleans are equal. 046 * @param info contains information about the assertion. 047 * @param actual the actual value. 048 * @param expected the expected value. 049 * @throws AssertionError if the actual value is {@code null}. 050 * @throws AssertionError if the actual value is not equal to the expected one. This method will throw a 051 * {@code org.junit.ComparisonFailure} instead if JUnit is in the classpath and the expected and actual values are not 052 * equal. 053 */ 054 public void assertEqual(AssertionInfo info, Boolean actual, boolean expected) { 055 assertNotNull(info, actual); 056 if (actual.booleanValue() == expected) return; 057 throw failures.failure(info, shouldBeEqual(actual, expected)); 058 } 059 060 /** 061 * Asserts that two longs are not equal. 062 * @param info contains information about the assertion. 063 * @param actual the actual value. 064 * @param other the value to compare the actual value to. 065 * @throws AssertionError if the actual value is {@code null}. 066 * @throws AssertionError if the actual value is equal to the other one. 067 */ 068 public void assertNotEqual(AssertionInfo info, Boolean actual, boolean other) { 069 assertNotNull(info, actual); 070 if (actual.booleanValue() != other) return; 071 throw failures.failure(info, shouldNotBeEqual(actual, other)); 072 } 073 074 private static void assertNotNull(AssertionInfo info, Boolean actual) { 075 Objects.instance().assertNotNull(info, actual); 076 } 077 }