| /* |
| * 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.guava; |
| |
| import org.apache.brooklyn.util.math.MathFunctions; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| import com.google.common.base.Predicate; |
| import com.google.common.base.Predicates; |
| import com.google.common.base.Suppliers; |
| |
| public class FunctionalsTest { |
| |
| @Test |
| public void testChain() { |
| Assert.assertEquals(Functionals.chain(MathFunctions.plus(1), MathFunctions.times(2)).apply(3), (Integer)8); |
| Assert.assertEquals(Functionals.chain(MathFunctions.times(2), MathFunctions.plus(1)).apply(3), (Integer)7); |
| } |
| |
| @Test |
| public void testIf() { |
| IfFunctionsTest.checkTF(Functionals.ifEquals(false).value("F").ifEquals(true).value("T").defaultValue("?").build(), "?"); |
| } |
| |
| @Test |
| public void testIfNoBuilder() { |
| IfFunctionsTest.checkTF(Functionals.ifEquals(false).value("F").ifEquals(true).value("T").defaultValue("?"), "?"); |
| } |
| |
| @Test |
| public void testIfPredicateAndSupplier() { |
| IfFunctionsTest.checkTF(Functionals.ifPredicate(Predicates.equalTo(false)).get(Suppliers.ofInstance("F")) |
| .ifEquals(true).value("T").defaultGet(Suppliers.ofInstance("?")).build(), "?"); |
| } |
| |
| @Test |
| public void testIfNotEqual() { |
| IfFunctionsTest.checkTF(Functionals.ifNotEquals(false).value("T").defaultValue("F").build(), "T"); |
| } |
| |
| @Test |
| public void testIsSatisfied() throws Exception { |
| Predicate<Integer> isEven = new Predicate<Integer>() { |
| @Override public boolean apply(Integer input) { |
| return (input % 2 == 0); |
| } |
| }; |
| Assert.assertFalse(Functionals.isSatisfied(11, isEven).call()); |
| Assert.assertTrue(Functionals.isSatisfied(22, isEven).call()); |
| } |
| |
| } |