001 /* 002 * Created on Nov 18, 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.api; 016 017 import java.util.Comparator; 018 019 import org.fest.assertions.core.ComparableAssert; 020 import org.fest.assertions.internal.Comparables; 021 import org.fest.util.ComparatorBasedComparisonStrategy; 022 import org.fest.util.VisibleForTesting; 023 024 /** 025 * Base class for all implementations of <code>{@link ComparableAssert}</code>. 026 * @param <S> the "self" type of this assertion class. Please read "<a href="http://bit.ly/anMa4g" 027 * target="_blank">Emulating 'self types' using Java Generics to simplify fluent API implementation</a>" 028 * for more details. 029 * @param <A> the type of the "actual" value. 030 * 031 * @author Alex Ruiz 032 * @author Mikhail Mazursky 033 */ 034 public abstract class AbstractComparableAssert<S extends AbstractComparableAssert<S, A>, A extends Comparable<? super A>> 035 extends AbstractAssert<S, A> implements ComparableAssert<S, A> { 036 037 @VisibleForTesting 038 Comparables comparables = Comparables.instance(); 039 040 protected AbstractComparableAssert(A actual, Class<?> selfType) { 041 super(actual, selfType); 042 } 043 044 /** {@inheritDoc} */ 045 public final S isLessThan(A other) { 046 comparables.assertLessThan(info, actual, other); 047 return myself; 048 } 049 050 /** {@inheritDoc} */ 051 public final S isLessThanOrEqualTo(A other) { 052 comparables.assertLessThanOrEqualTo(info, actual, other); 053 return myself; 054 } 055 056 /** {@inheritDoc} */ 057 public final S isGreaterThan(A other) { 058 comparables.assertGreaterThan(info, actual, other); 059 return myself; 060 } 061 062 /** {@inheritDoc} */ 063 public final S isGreaterThanOrEqualTo(A other) { 064 comparables.assertGreaterThanOrEqualTo(info, actual, other); 065 return myself; 066 } 067 068 @Override 069 public S usingComparator(Comparator<?> customComparator) { 070 super.usingComparator(customComparator); 071 this.comparables = new Comparables(new ComparatorBasedComparisonStrategy(customComparator)); 072 return myself; 073 } 074 075 @Override 076 public S usingDefaultComparator() { 077 super.usingDefaultComparator(); 078 this.comparables = Comparables.instance(); 079 return myself; 080 } 081 }