/*
* Copyright 2001-2005 Stephen Colebourne
*
* Licensed 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.joda.time.field;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
*
*
* @author Brian S O'Neill
*/
public class TestFieldUtils extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(suite());
}
public static TestSuite suite() {
return new TestSuite(TestFieldUtils.class);
}
public TestFieldUtils(String name) {
super(name);
}
public void testSafeAddInt() {
assertEquals(0, FieldUtils.safeAdd(0, 0));
assertEquals(5, FieldUtils.safeAdd(2, 3));
assertEquals(-1, FieldUtils.safeAdd(2, -3));
assertEquals(1, FieldUtils.safeAdd(-2, 3));
assertEquals(-5, FieldUtils.safeAdd(-2, -3));
assertEquals(Integer.MAX_VALUE - 1, FieldUtils.safeAdd(Integer.MAX_VALUE, -1));
assertEquals(Integer.MIN_VALUE + 1, FieldUtils.safeAdd(Integer.MIN_VALUE, 1));
assertEquals(-1, FieldUtils.safeAdd(Integer.MIN_VALUE, Integer.MAX_VALUE));
assertEquals(-1, FieldUtils.safeAdd(Integer.MAX_VALUE, Integer.MIN_VALUE));
try {
FieldUtils.safeAdd(Integer.MAX_VALUE, 1);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Integer.MAX_VALUE, 100);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Integer.MAX_VALUE, Integer.MAX_VALUE);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Integer.MIN_VALUE, -1);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Integer.MIN_VALUE, -100);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Integer.MIN_VALUE, Integer.MIN_VALUE);
fail();
} catch (ArithmeticException e) {
}
}
public void testSafeAddLong() {
assertEquals(0L, FieldUtils.safeAdd(0L, 0L));
assertEquals(5L, FieldUtils.safeAdd(2L, 3L));
assertEquals(-1L, FieldUtils.safeAdd(2L, -3L));
assertEquals(1L, FieldUtils.safeAdd(-2L, 3L));
assertEquals(-5L, FieldUtils.safeAdd(-2L, -3L));
assertEquals(Long.MAX_VALUE - 1, FieldUtils.safeAdd(Long.MAX_VALUE, -1L));
assertEquals(Long.MIN_VALUE + 1, FieldUtils.safeAdd(Long.MIN_VALUE, 1L));
assertEquals(-1, FieldUtils.safeAdd(Long.MIN_VALUE, Long.MAX_VALUE));
assertEquals(-1, FieldUtils.safeAdd(Long.MAX_VALUE, Long.MIN_VALUE));
try {
FieldUtils.safeAdd(Long.MAX_VALUE, 1L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Long.MAX_VALUE, 100L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Long.MAX_VALUE, Long.MAX_VALUE);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Long.MIN_VALUE, -1L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Long.MIN_VALUE, -100L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeAdd(Long.MIN_VALUE, Long.MIN_VALUE);
fail();
} catch (ArithmeticException e) {
}
}
public void testSafeSubtractLong() {
assertEquals(0L, FieldUtils.safeSubtract(0L, 0L));
assertEquals(-1L, FieldUtils.safeSubtract(2L, 3L));
assertEquals(5L, FieldUtils.safeSubtract(2L, -3L));
assertEquals(-5L, FieldUtils.safeSubtract(-2L, 3L));
assertEquals(1L, FieldUtils.safeSubtract(-2L, -3L));
assertEquals(Long.MAX_VALUE - 1, FieldUtils.safeSubtract(Long.MAX_VALUE, 1L));
assertEquals(Long.MIN_VALUE + 1, FieldUtils.safeSubtract(Long.MIN_VALUE, -1L));
assertEquals(0, FieldUtils.safeSubtract(Long.MIN_VALUE, Long.MIN_VALUE));
assertEquals(0, FieldUtils.safeSubtract(Long.MAX_VALUE, Long.MAX_VALUE));
try {
FieldUtils.safeSubtract(Long.MIN_VALUE, 1L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeSubtract(Long.MIN_VALUE, 100L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeSubtract(Long.MIN_VALUE, Long.MAX_VALUE);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeSubtract(Long.MAX_VALUE, -1L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeSubtract(Long.MAX_VALUE, -100L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeSubtract(Long.MAX_VALUE, Long.MIN_VALUE);
fail();
} catch (ArithmeticException e) {
}
}
//-----------------------------------------------------------------------
public void testSafeMultiplyLongLong() {
assertEquals(0L, FieldUtils.safeMultiply(0L, 0L));
assertEquals(1L, FieldUtils.safeMultiply(1L, 1L));
assertEquals(3L, FieldUtils.safeMultiply(1L, 3L));
assertEquals(3L, FieldUtils.safeMultiply(3L, 1L));
assertEquals(6L, FieldUtils.safeMultiply(2L, 3L));
assertEquals(-6L, FieldUtils.safeMultiply(2L, -3L));
assertEquals(-6L, FieldUtils.safeMultiply(-2L, 3L));
assertEquals(6L, FieldUtils.safeMultiply(-2L, -3L));
assertEquals(Long.MAX_VALUE, FieldUtils.safeMultiply(Long.MAX_VALUE, 1L));
assertEquals(Long.MIN_VALUE, FieldUtils.safeMultiply(Long.MIN_VALUE, 1L));
assertEquals(-Long.MAX_VALUE, FieldUtils.safeMultiply(Long.MAX_VALUE, -1L));
try {
FieldUtils.safeMultiply(Long.MIN_VALUE, -1L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeMultiply(-1L, Long.MIN_VALUE);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeMultiply(Long.MIN_VALUE, 100L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeMultiply(Long.MIN_VALUE, Long.MAX_VALUE);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeMultiply(Long.MAX_VALUE, Long.MIN_VALUE);
fail();
} catch (ArithmeticException e) {
}
}
//-----------------------------------------------------------------------
public void testSafeMultiplyLongInt() {
assertEquals(0L, FieldUtils.safeMultiply(0L, 0));
assertEquals(1L, FieldUtils.safeMultiply(1L, 1));
assertEquals(3L, FieldUtils.safeMultiply(1L, 3));
assertEquals(3L, FieldUtils.safeMultiply(3L, 1));
assertEquals(6L, FieldUtils.safeMultiply(2L, 3));
assertEquals(-6L, FieldUtils.safeMultiply(2L, -3));
assertEquals(-6L, FieldUtils.safeMultiply(-2L, 3));
assertEquals(6L, FieldUtils.safeMultiply(-2L, -3));
assertEquals(-1L * Integer.MIN_VALUE, FieldUtils.safeMultiply(-1L, Integer.MIN_VALUE));
assertEquals(Long.MAX_VALUE, FieldUtils.safeMultiply(Long.MAX_VALUE, 1));
assertEquals(Long.MIN_VALUE, FieldUtils.safeMultiply(Long.MIN_VALUE, 1));
assertEquals(-Long.MAX_VALUE, FieldUtils.safeMultiply(Long.MAX_VALUE, -1));
try {
FieldUtils.safeMultiply(Long.MIN_VALUE, -1);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeMultiply(Long.MIN_VALUE, 100);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeMultiply(Long.MIN_VALUE, Integer.MAX_VALUE);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeMultiply(Long.MAX_VALUE, Integer.MIN_VALUE);
fail();
} catch (ArithmeticException e) {
}
}
//-----------------------------------------------------------------------
public void testSafeDivideLongLong() {
assertEquals(1L, FieldUtils.safeDivide(1L, 1L));
assertEquals(1L, FieldUtils.safeDivide(3L, 3L));
assertEquals(0L, FieldUtils.safeDivide(1L, 3L));
assertEquals(3L, FieldUtils.safeDivide(3L, 1L));
assertEquals(1L, FieldUtils.safeDivide(5L, 3L));
assertEquals(-1L, FieldUtils.safeDivide(5L, -3L));
assertEquals(-1L, FieldUtils.safeDivide(-5L, 3L));
assertEquals(1L, FieldUtils.safeDivide(-5L, -3L));
assertEquals(2L, FieldUtils.safeDivide(6L, 3L));
assertEquals(-2L, FieldUtils.safeDivide(6L, -3L));
assertEquals(-2L, FieldUtils.safeDivide(-6L, 3L));
assertEquals(2L, FieldUtils.safeDivide(-6L, -3L));
assertEquals(2L, FieldUtils.safeDivide(7L, 3L));
assertEquals(-2L, FieldUtils.safeDivide(7L, -3L));
assertEquals(-2L, FieldUtils.safeDivide(-7L, 3L));
assertEquals(2L, FieldUtils.safeDivide(-7L, -3L));
assertEquals(Long.MAX_VALUE, FieldUtils.safeDivide(Long.MAX_VALUE, 1L));
assertEquals(Long.MIN_VALUE, FieldUtils.safeDivide(Long.MIN_VALUE, 1L));
assertEquals(-Long.MAX_VALUE, FieldUtils.safeDivide(Long.MAX_VALUE, -1L));
try {
FieldUtils.safeDivide(Long.MIN_VALUE, -1L);
fail();
} catch (ArithmeticException e) {
}
try {
FieldUtils.safeDivide(1L, 0L);
fail();
} catch (ArithmeticException e) {
}
}
}