001 /* 002 * Created on Oct 17, 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.NumberAssert; 020 import org.fest.assertions.internal.Integers; 021 import org.fest.util.ComparatorBasedComparisonStrategy; 022 import org.fest.util.VisibleForTesting; 023 024 /** 025 * Assertion methods for integers. 026 * <p> 027 * To create an instance of this class, invoke <code>{@link Assertions#assertThat(Integer)}</code> or 028 * <code>{@link Assertions#assertThat(int)}</code>. 029 * </p> 030 * 031 * @author Yvonne Wang 032 * @author David DIDIER 033 * @author Ansgar Konermann 034 * @author Alex Ruiz 035 * @author Joel Costigliola 036 */ 037 public class IntegerAssert extends AbstractComparableAssert<IntegerAssert, Integer> implements NumberAssert<Integer> { 038 039 @VisibleForTesting Integers integers = Integers.instance(); 040 041 protected IntegerAssert(Integer actual) { 042 super(actual, IntegerAssert.class); 043 } 044 045 /** 046 * Verifies that the actual value is equal to the given one. 047 * @param expected the given value to compare the actual value to. 048 * @return {@code this} assertion object. 049 * @throws AssertionError if the actual value is {@code null}. 050 * @throws AssertionError if the actual value is not equal to the given one. 051 */ 052 public IntegerAssert isEqualTo(int expected) { 053 integers.assertEqual(info, actual, expected); 054 return this; 055 } 056 057 /** 058 * Verifies that the actual value is not equal to the given one. 059 * @param other the given value to compare the actual value to. 060 * @return {@code this} assertion object. 061 * @throws AssertionError if the actual value is {@code null}. 062 * @throws AssertionError if the actual value is equal to the given one. 063 */ 064 public IntegerAssert isNotEqualTo(int other) { 065 integers.assertNotEqual(info, actual, other); 066 return this; 067 } 068 069 /** {@inheritDoc} */ 070 public IntegerAssert isZero() { 071 integers.assertIsZero(info, actual); 072 return this; 073 } 074 075 /** {@inheritDoc} */ 076 public IntegerAssert isNotZero() { 077 integers.assertIsNotZero(info, actual); 078 return this; 079 } 080 081 /** {@inheritDoc} */ 082 public IntegerAssert isPositive() { 083 integers.assertIsPositive(info, actual); 084 return this; 085 } 086 087 /** {@inheritDoc} */ 088 public IntegerAssert isNegative() { 089 integers.assertIsNegative(info, actual); 090 return this; 091 } 092 093 /** 094 * Verifies that the actual value is less than the given one. 095 * @param other the given value to compare the actual value to. 096 * @return {@code this} assertion object. 097 * @throws AssertionError if the actual value is {@code null}. 098 * @throws AssertionError if the actual value is equal to or greater than the given one. 099 */ 100 public IntegerAssert isLessThan(int other) { 101 integers.assertLessThan(info, actual, other); 102 return this; 103 } 104 105 /** 106 * Verifies that the actual value is less than or equal to the given one. 107 * @param other the given value to compare the actual value to. 108 * @return {@code this} assertion object. 109 * @throws AssertionError if the actual value is {@code null}. 110 * @throws AssertionError if the actual value is greater than the given one. 111 */ 112 public IntegerAssert isLessThanOrEqualTo(int other) { 113 integers.assertLessThanOrEqualTo(info, actual, other); 114 return this; 115 } 116 117 /** 118 * Verifies that the actual value is greater than the given one. 119 * @param other the given value to compare the actual value to. 120 * @return {@code this} assertion object. 121 * @throws AssertionError if the actual value is {@code null}. 122 * @throws AssertionError if the actual value is equal to or less than the given one. 123 */ 124 public IntegerAssert isGreaterThan(int other) { 125 integers.assertGreaterThan(info, actual, other); 126 return this; 127 } 128 129 /** 130 * Verifies that the actual value is greater than or equal to the given one. 131 * @param other the given value to compare the actual value to. 132 * @return {@code this} assertion object. 133 * @throws AssertionError if the actual value is {@code null}. 134 * @throws AssertionError if the actual value is less than the given one. 135 */ 136 public IntegerAssert isGreaterThanOrEqualTo(int other) { 137 integers.assertGreaterThanOrEqualTo(info, actual, other); 138 return this; 139 } 140 141 @Override 142 public IntegerAssert usingComparator(Comparator<?> customComparator) { 143 super.usingComparator(customComparator); 144 this.integers = new Integers(new ComparatorBasedComparisonStrategy(customComparator)); 145 return myself; 146 } 147 148 @Override 149 public IntegerAssert usingDefaultComparator() { 150 super.usingDefaultComparator(); 151 this.integers = Integers.instance(); 152 return myself; 153 } 154 }