| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.commons.lang3.builder; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * Tests {@link org.apache.commons.lang3.builder.HashCodeBuilder} and |
| * {@link org.apache.commons.lang3.builder.EqualsBuilderTest} to insure that equal |
| * objects must have equal hash codes. |
| */ |
| public class HashCodeBuilderAndEqualsBuilderTest { |
| |
| //----------------------------------------------------------------------- |
| |
| private void testInteger(final boolean testTransients) { |
| final Integer i1 = Integer.valueOf(12345); |
| final Integer i2 = Integer.valueOf(12345); |
| assertEqualsAndHashCodeContract(i1, i2, testTransients); |
| } |
| |
| @Test |
| public void testInteger() { |
| testInteger(false); |
| } |
| |
| @Test |
| public void testIntegerWithTransients() { |
| testInteger(true); |
| } |
| |
| @Test |
| public void testFixture() { |
| testFixture(false); |
| } |
| |
| @Test |
| public void testFixtureWithTransients() { |
| testFixture(true); |
| } |
| |
| private void testFixture(final boolean testTransients) { |
| assertEqualsAndHashCodeContract(new TestFixture(2, 'c', "Test", (short) 2), new TestFixture(2, 'c', "Test", (short) 2), testTransients); |
| assertEqualsAndHashCodeContract( |
| new AllTransientFixture(2, 'c', "Test", (short) 2), |
| new AllTransientFixture(2, 'c', "Test", (short) 2), |
| testTransients); |
| assertEqualsAndHashCodeContract( |
| new SubTestFixture(2, 'c', "Test", (short) 2, "Same"), |
| new SubTestFixture(2, 'c', "Test", (short) 2, "Same"), |
| testTransients); |
| assertEqualsAndHashCodeContract( |
| new SubAllTransientFixture(2, 'c', "Test", (short) 2, "Same"), |
| new SubAllTransientFixture(2, 'c', "Test", (short) 2, "Same"), |
| testTransients); |
| } |
| |
| /** |
| * Asserts that if {@code lhs} equals {@code rhs} |
| * then their hash codes MUST be identical. |
| * |
| * @param lhs The Left-Hand-Side of the equals test |
| * @param rhs The Right-Hand-Side of the equals test |
| * @param testTransients whether to test transient fields |
| */ |
| private void assertEqualsAndHashCodeContract(final Object lhs, final Object rhs, final boolean testTransients) { |
| if (EqualsBuilder.reflectionEquals(lhs, rhs, testTransients)) { |
| // test a couple of times for consistency. |
| assertEquals(HashCodeBuilder.reflectionHashCode(lhs, testTransients), HashCodeBuilder.reflectionHashCode(rhs, testTransients)); |
| assertEquals(HashCodeBuilder.reflectionHashCode(lhs, testTransients), HashCodeBuilder.reflectionHashCode(rhs, testTransients)); |
| assertEquals(HashCodeBuilder.reflectionHashCode(lhs, testTransients), HashCodeBuilder.reflectionHashCode(rhs, testTransients)); |
| } |
| } |
| |
| static class TestFixture { |
| int i; |
| char c; |
| String string; |
| short s; |
| |
| TestFixture(final int i, final char c, final String string, final short s) { |
| this.i = i; |
| this.c = c; |
| this.string = string; |
| this.s = s; |
| } |
| } |
| |
| static class SubTestFixture extends TestFixture { |
| transient String tString; |
| |
| SubTestFixture(final int i, final char c, final String string, final short s, final String tString) { |
| super(i, c, string, s); |
| this.tString = tString; |
| } |
| } |
| |
| static class AllTransientFixture { |
| transient int i; |
| transient char c; |
| transient String string; |
| transient short s; |
| |
| AllTransientFixture(final int i, final char c, final String string, final short s) { |
| this.i = i; |
| this.c = c; |
| this.string = string; |
| this.s = s; |
| } |
| } |
| |
| static class SubAllTransientFixture extends AllTransientFixture { |
| transient String tString; |
| |
| SubAllTransientFixture(final int i, final char c, final String string, final short s, final String tString) { |
| super(i, c, string, s); |
| this.tString = tString; |
| } |
| } |
| |
| |
| } |