/*
* 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.brooklyn.util.collections;
import org.apache.brooklyn.util.collections.CollectionFunctionals;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.google.common.base.Predicates;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
public class CollectionFunctionalsTest {
@Test
public void testListSize() {
Assert.assertTrue(CollectionFunctionals.sizeEquals(2).apply(ImmutableList.of("x", "y")));
Assert.assertFalse(CollectionFunctionals.sizeEquals(2).apply(null));
Assert.assertTrue(CollectionFunctionals.sizeEquals(0).apply(ImmutableList.of()));
Assert.assertFalse(CollectionFunctionals.sizeEquals(0).apply(null));
}
@Test
public void testMapSize() {
Assert.assertTrue(CollectionFunctionals.<String>mapSizeEquals(2).apply(ImmutableMap.of("x", "1", "y", "2")));
Assert.assertFalse(CollectionFunctionals.<String>mapSizeEquals(2).apply(null));
Assert.assertTrue(CollectionFunctionals.mapSizeEquals(0).apply(ImmutableMap.of()));
Assert.assertFalse(CollectionFunctionals.mapSizeEquals(0).apply(null));
}
@Test
public void testMapSizeOfNull() {
Assert.assertEquals(CollectionFunctionals.mapSize().apply(null), null);
Assert.assertEquals(CollectionFunctionals.mapSize(-1).apply(null), (Integer)(-1));
}
@Test
public void testFirstElement() {
Assert.assertEquals(CollectionFunctionals.firstElement().apply(null), null);
Assert.assertEquals(CollectionFunctionals.firstElement().apply(ImmutableList.of("a")), "a");
Assert.assertEquals(CollectionFunctionals.firstElement().apply(ImmutableList.of("a", "b", "c")), "a");
}
@Test
public void testAllAndAny() {
Assert.assertEquals(CollectionFunctionals.all(Predicates.equalTo(1)).apply(
MutableList.of(1, 1, 1)), true);
Assert.assertEquals(CollectionFunctionals.all(Predicates.equalTo(1)).apply(
MutableList.<Integer>of()), true);
Assert.assertEquals(CollectionFunctionals.all(Predicates.equalTo(1)).apply(
MutableList.of(1, 0, 1)), false);
Assert.assertEquals(CollectionFunctionals.all(Predicates.equalTo(1)).apply(
MutableList.of(0, 0, 0)), false);
Assert.assertEquals(CollectionFunctionals.any(Predicates.equalTo(1)).apply(
MutableList.of(1, 1, 1)), true);
Assert.assertEquals(CollectionFunctionals.any(Predicates.equalTo(1)).apply(
MutableList.<Integer>of()), false);
Assert.assertEquals(CollectionFunctionals.any(Predicates.equalTo(1)).apply(
MutableList.of(1, 0, 1)), true);
Assert.assertEquals(CollectionFunctionals.any(Predicates.equalTo(1)).apply(
MutableList.of(0, 0, 0)), false);
}
}