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/*
* 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.mutable;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import org.apache.commons.lang3.AbstractLangTest;
import org.junit.jupiter.api.Test;
/**
* JUnit tests.
*
* @see MutableByte
*/
public class MutableByteTest extends AbstractLangTest {
@Test
public void testAddAndGetValueObject() {
final MutableByte mutableByte = new MutableByte((byte) 0);
final byte result = mutableByte.addAndGet(Byte.valueOf((byte) 1));
assertEquals((byte) 1, result);
assertEquals((byte) 1, mutableByte.byteValue());
}
@Test
public void testAddAndGetValuePrimitive() {
final MutableByte mutableByte = new MutableByte((byte) 0);
final byte result = mutableByte.addAndGet((byte) 1);
assertEquals((byte) 1, result);
assertEquals((byte) 1, mutableByte.byteValue());
}
@Test
public void testAddValueObject() {
final MutableByte mutNum = new MutableByte((byte) 1);
mutNum.add(Integer.valueOf(1));
assertEquals((byte) 2, mutNum.byteValue());
}
@Test
public void testAddValuePrimitive() {
final MutableByte mutNum = new MutableByte((byte) 1);
mutNum.add((byte) 1);
assertEquals((byte) 2, mutNum.byteValue());
}
@Test
public void testCompareTo() {
final MutableByte mutNum = new MutableByte((byte) 0);
assertEquals((byte) 0, mutNum.compareTo(new MutableByte((byte) 0)));
assertEquals((byte) +1, mutNum.compareTo(new MutableByte((byte) -1)));
assertEquals((byte) -1, mutNum.compareTo(new MutableByte((byte) 1)));
}
@Test
public void testCompareToNull() {
final MutableByte mutNum = new MutableByte((byte) 0);
assertThrows(NullPointerException.class, () -> mutNum.compareTo(null));
}
@Test
public void testConstructorNull() {
assertThrows(NullPointerException.class, () -> new MutableByte((Number) null));
}
@Test
public void testConstructors() {
assertEquals((byte) 0, new MutableByte().byteValue());
assertEquals((byte) 1, new MutableByte((byte) 1).byteValue());
assertEquals((byte) 2, new MutableByte(Byte.valueOf((byte) 2)).byteValue());
assertEquals((byte) 3, new MutableByte(new MutableByte((byte) 3)).byteValue());
assertEquals((byte) 2, new MutableByte("2").byteValue());
}
@Test
public void testDecrement() {
final MutableByte mutNum = new MutableByte((byte) 1);
mutNum.decrement();
assertEquals(0, mutNum.intValue());
assertEquals(0L, mutNum.longValue());
}
@Test
public void testDecrementAndGet() {
final MutableByte mutNum = new MutableByte((byte) 1);
final byte result = mutNum.decrementAndGet();
assertEquals(0, result);
assertEquals(0, mutNum.intValue());
assertEquals(0L, mutNum.longValue());
}
@Test
public void testEquals() {
final MutableByte mutNumA = new MutableByte((byte) 0);
final MutableByte mutNumB = new MutableByte((byte) 0);
final MutableByte mutNumC = new MutableByte((byte) 1);
assertEquals(mutNumA, mutNumA);
assertEquals(mutNumA, mutNumB);
assertEquals(mutNumB, mutNumA);
assertEquals(mutNumB, mutNumB);
assertNotEquals(mutNumA, mutNumC);
assertNotEquals(mutNumB, mutNumC);
assertEquals(mutNumC, mutNumC);
assertNotEquals(null, mutNumA);
assertNotEquals(mutNumA, Byte.valueOf((byte) 0));
assertNotEquals("0", mutNumA);
}
@Test
public void testGetAndAddValueObject() {
final MutableByte mutableByte = new MutableByte((byte) 0);
final byte result = mutableByte.getAndAdd(Byte.valueOf((byte) 1));
assertEquals((byte) 0, result);
assertEquals((byte) 1, mutableByte.byteValue());
}
@Test
public void testGetAndAddValuePrimitive() {
final MutableByte mutableByte = new MutableByte((byte) 0);
final byte result = mutableByte.getAndAdd((byte) 1);
assertEquals((byte) 0, result);
assertEquals((byte) 1, mutableByte.byteValue());
}
@Test
public void testGetAndDecrement() {
final MutableByte mutNum = new MutableByte((byte) 1);
final byte result = mutNum.getAndDecrement();
assertEquals(1, result);
assertEquals(0, mutNum.intValue());
assertEquals(0L, mutNum.longValue());
}
@Test
public void testGetAndIncrement() {
final MutableByte mutNum = new MutableByte((byte) 1);
final byte result = mutNum.getAndIncrement();
assertEquals(1, result);
assertEquals(2, mutNum.intValue());
assertEquals(2L, mutNum.longValue());
}
@Test
public void testGetSet() {
final MutableByte mutNum = new MutableByte((byte) 0);
assertEquals((byte) 0, new MutableByte().byteValue());
assertEquals(Byte.valueOf((byte) 0), new MutableByte().getValue());
mutNum.setValue((byte) 1);
assertEquals((byte) 1, mutNum.byteValue());
assertEquals(Byte.valueOf((byte) 1), mutNum.getValue());
mutNum.setValue(Byte.valueOf((byte) 2));
assertEquals((byte) 2, mutNum.byteValue());
assertEquals(Byte.valueOf((byte) 2), mutNum.getValue());
mutNum.setValue(new MutableByte((byte) 3));
assertEquals((byte) 3, mutNum.byteValue());
assertEquals(Byte.valueOf((byte) 3), mutNum.getValue());
}
@Test
public void testHashCode() {
final MutableByte mutNumA = new MutableByte((byte) 0);
final MutableByte mutNumB = new MutableByte((byte) 0);
final MutableByte mutNumC = new MutableByte((byte) 1);
assertEquals(mutNumA.hashCode(), mutNumA.hashCode());
assertEquals(mutNumA.hashCode(), mutNumB.hashCode());
assertNotEquals(mutNumA.hashCode(), mutNumC.hashCode());
assertEquals(mutNumA.hashCode(), Byte.valueOf((byte) 0).hashCode());
}
@Test
public void testIncrement() {
final MutableByte mutNum = new MutableByte((byte) 1);
mutNum.increment();
assertEquals(2, mutNum.intValue());
assertEquals(2L, mutNum.longValue());
}
@Test
public void testIncrementAndGet() {
final MutableByte mutNum = new MutableByte((byte) 1);
final byte result = mutNum.incrementAndGet();
assertEquals(2, result);
assertEquals(2, mutNum.intValue());
assertEquals(2L, mutNum.longValue());
}
@Test
public void testPrimitiveValues() {
final MutableByte mutNum = new MutableByte( (byte) 1 );
assertEquals(1.0F, mutNum.floatValue());
assertEquals(1.0, mutNum.doubleValue());
assertEquals( (byte) 1, mutNum.byteValue() );
assertEquals( (short) 1, mutNum.shortValue() );
assertEquals( 1, mutNum.intValue() );
assertEquals( 1L, mutNum.longValue() );
}
@Test
public void testSetNull() {
final MutableByte mutNum = new MutableByte((byte) 0);
assertThrows(NullPointerException.class, () -> mutNum.setValue(null));
}
@Test
public void testSubtractValueObject() {
final MutableByte mutNum = new MutableByte((byte) 1);
mutNum.subtract(Integer.valueOf(1));
assertEquals((byte) 0, mutNum.byteValue());
}
@Test
public void testSubtractValuePrimitive() {
final MutableByte mutNum = new MutableByte((byte) 1);
mutNum.subtract((byte) 1);
assertEquals((byte) 0, mutNum.byteValue());
}
@Test
public void testToByte() {
assertEquals(Byte.valueOf((byte) 0), new MutableByte((byte) 0).toByte());
assertEquals(Byte.valueOf((byte) 123), new MutableByte((byte) 123).toByte());
}
@Test
public void testToString() {
assertEquals("0", new MutableByte((byte) 0).toString());
assertEquals("10", new MutableByte((byte) 10).toString());
assertEquals("-123", new MutableByte((byte) -123).toString());
}
}
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