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 * @author Mikhail Mazursky
037 */
038 public class IntegerAssert extends AbstractComparableAssert<IntegerAssert, Integer> implements NumberAssert<Integer> {
039
040 @VisibleForTesting Integers integers = Integers.instance();
041
042 protected IntegerAssert(Integer actual) {
043 super(actual, IntegerAssert.class);
044 }
045
046 /**
047 * Verifies that the actual value is equal to the given one.
048 * @param expected the given value to compare the actual value to.
049 * @return {@code this} assertion object.
050 * @throws AssertionError if the actual value is {@code null}.
051 * @throws AssertionError if the actual value is not equal to the given one.
052 */
053 public IntegerAssert isEqualTo(int expected) {
054 integers.assertEqual(info, actual, expected);
055 return this;
056 }
057
058 /**
059 * Verifies that the actual value is not equal to the given one.
060 * @param other the given value to compare the actual value to.
061 * @return {@code this} assertion object.
062 * @throws AssertionError if the actual value is {@code null}.
063 * @throws AssertionError if the actual value is equal to the given one.
064 */
065 public IntegerAssert isNotEqualTo(int other) {
066 integers.assertNotEqual(info, actual, other);
067 return this;
068 }
069
070 /** {@inheritDoc} */
071 public IntegerAssert isZero() {
072 integers.assertIsZero(info, actual);
073 return this;
074 }
075
076 /** {@inheritDoc} */
077 public IntegerAssert isNotZero() {
078 integers.assertIsNotZero(info, actual);
079 return this;
080 }
081
082 /** {@inheritDoc} */
083 public IntegerAssert isPositive() {
084 integers.assertIsPositive(info, actual);
085 return this;
086 }
087
088 /** {@inheritDoc} */
089 public IntegerAssert isNegative() {
090 integers.assertIsNegative(info, actual);
091 return this;
092 }
093
094 /**
095 * Verifies that the actual value is less than the given one.
096 * @param other the given value to compare the actual value to.
097 * @return {@code this} assertion object.
098 * @throws AssertionError if the actual value is {@code null}.
099 * @throws AssertionError if the actual value is equal to or greater than the given one.
100 */
101 public IntegerAssert isLessThan(int other) {
102 integers.assertLessThan(info, actual, other);
103 return this;
104 }
105
106 /**
107 * Verifies that the actual value is less than or equal to the given one.
108 * @param other the given value to compare the actual value to.
109 * @return {@code this} assertion object.
110 * @throws AssertionError if the actual value is {@code null}.
111 * @throws AssertionError if the actual value is greater than the given one.
112 */
113 public IntegerAssert isLessThanOrEqualTo(int other) {
114 integers.assertLessThanOrEqualTo(info, actual, other);
115 return this;
116 }
117
118 /**
119 * Verifies that the actual value is greater than the given one.
120 * @param other the given value to compare the actual value to.
121 * @return {@code this} assertion object.
122 * @throws AssertionError if the actual value is {@code null}.
123 * @throws AssertionError if the actual value is equal to or less than the given one.
124 */
125 public IntegerAssert isGreaterThan(int other) {
126 integers.assertGreaterThan(info, actual, other);
127 return this;
128 }
129
130 /**
131 * Verifies that the actual value is greater than or equal to the given one.
132 * @param other the given value to compare the actual value to.
133 * @return {@code this} assertion object.
134 * @throws AssertionError if the actual value is {@code null}.
135 * @throws AssertionError if the actual value is less than the given one.
136 */
137 public IntegerAssert isGreaterThanOrEqualTo(int other) {
138 integers.assertGreaterThanOrEqualTo(info, actual, other);
139 return this;
140 }
141
142 @Override
143 public IntegerAssert usingComparator(Comparator<? super Integer> customComparator) {
144 super.usingComparator(customComparator);
145 this.integers = new Integers(new ComparatorBasedComparisonStrategy(customComparator));
146 return myself;
147 }
148
149 @Override
150 public IntegerAssert usingDefaultComparator() {
151 super.usingDefaultComparator();
152 this.integers = Integers.instance();
153 return myself;
154 }
155 }