001 /* 002 * Created on Oct 23, 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 java.lang.Character.*; 018 019 import static org.fest.assertions.error.ShouldBeLowerCase.shouldBeLowerCase; 020 import static org.fest.assertions.error.ShouldBeUpperCase.shouldBeUpperCase; 021 022 import org.fest.assertions.core.AssertionInfo; 023 import org.fest.util.ComparisonStrategy; 024 import org.fest.util.VisibleForTesting; 025 026 /** 027 * Reusable assertions for <code>{@link Character}</code>s. 028 * 029 * @author Alex Ruiz 030 * @author Joel Costigliola 031 */ 032 public class Characters extends Comparables { 033 034 private static final Characters INSTANCE = new Characters(); 035 036 /** 037 * Returns the singleton instance of this class. 038 * @return the singleton instance of this class. 039 */ 040 public static Characters instance() { 041 return INSTANCE; 042 } 043 044 @VisibleForTesting 045 Characters() { 046 super(); 047 } 048 049 public Characters(ComparisonStrategy comparisonStrategy) { 050 super(comparisonStrategy); 051 } 052 053 /** 054 * Asserts that the actual value is a lowercase character. 055 * @param info contains information about the assertion. 056 * @param actual the actual value. 057 * @throws AssertionError if the actual value is {@code null}. 058 * @throws AssertionError if the actual value is not a lowercase character. 059 */ 060 public void assertLowerCase(AssertionInfo info, Character actual) { 061 assertNotNull(info, actual); 062 if (isLowerCase(actual)) return; 063 throw failures.failure(info, shouldBeLowerCase(actual)); 064 } 065 066 /** 067 * Asserts that the actual value is a uppercase character. 068 * @param info contains information about the assertion. 069 * @param actual the actual value. 070 * @throws AssertionError if the actual value is {@code null}. 071 * @throws AssertionError if the actual value is not a uppercase character. 072 */ 073 public void assertUpperCase(AssertionInfo info, Character actual) { 074 assertNotNull(info, actual); 075 if (isUpperCase(actual)) return; 076 throw failures.failure(info, shouldBeUpperCase(actual)); 077 } 078 }