/*
* Copyright 2014 Goldman Sachs.
*
* 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 com.gs.collections.impl.block.factory;
import com.gs.collections.api.block.function.Function;
import com.gs.collections.impl.test.Verify;
import org.junit.Assert;
import org.junit.Test;
public class LongPredicatesTest
{
private static final Function<Long, Long> LONG_VALUE = Long::longValue;
@Test
public void isOdd()
{
Assert.assertTrue(LongPredicates.isOdd().accept(1L));
Assert.assertFalse(LongPredicates.isOdd().accept(-2L));
}
@Test
public void isEven()
{
Assert.assertTrue(LongPredicates.isEven().accept(-42L));
Assert.assertTrue(LongPredicates.isEven().accept(0L));
Assert.assertFalse(LongPredicates.isEven().accept(1L));
}
@Test
public void attributeIsOdd()
{
Assert.assertTrue(LongPredicates.attributeIsOdd(LONG_VALUE).accept(1L));
Assert.assertFalse(LongPredicates.attributeIsOdd(LONG_VALUE).accept(-2L));
}
@Test
public void attributeIsEven()
{
Assert.assertTrue(LongPredicates.attributeIsEven(LONG_VALUE).accept(-42L));
Assert.assertTrue(LongPredicates.attributeIsEven(LONG_VALUE).accept(0L));
Assert.assertFalse(LongPredicates.attributeIsEven(LONG_VALUE).accept(1L));
}
@Test
public void isZero()
{
Assert.assertTrue(LongPredicates.isZero().accept(0L));
Assert.assertFalse(LongPredicates.isZero().accept(1L));
Assert.assertFalse(LongPredicates.isZero().accept(-1L));
}
@Test
public void isPositive()
{
Assert.assertFalse(LongPredicates.isPositive().accept(0L));
Assert.assertTrue(LongPredicates.isPositive().accept(1L));
Assert.assertFalse(LongPredicates.isPositive().accept(-1L));
}
@Test
public void isNegative()
{
Assert.assertFalse(LongPredicates.isNegative().accept(0L));
Assert.assertFalse(LongPredicates.isNegative().accept(1L));
Assert.assertTrue(LongPredicates.isNegative().accept(-1L));
}
@Test
public void attributeIsZero()
{
Assert.assertTrue(LongPredicates.attributeIsZero(Integer::longValue).accept(0));
Assert.assertFalse(LongPredicates.attributeIsZero(Integer::longValue).accept(1));
}
@Test
public void attributeIsPositive()
{
Assert.assertTrue(LongPredicates.attributeIsPositive(Integer::longValue).accept(1));
Assert.assertFalse(LongPredicates.attributeIsPositive(Integer::longValue).accept(0));
Assert.assertFalse(LongPredicates.attributeIsPositive(Integer::longValue).accept(-1));
}
@Test
public void attributeIsNegative()
{
Assert.assertTrue(LongPredicates.attributeIsNegative(Integer::longValue).accept(-1));
Assert.assertFalse(LongPredicates.attributeIsNegative(Integer::longValue).accept(0));
Assert.assertFalse(LongPredicates.attributeIsNegative(Integer::longValue).accept(1));
}
@Test
public void classIsNonInstantiable()
{
Verify.assertClassNonInstantiable(LongPredicates.class);
}
}