| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.hc.core5.http.config; |
| |
| import org.hamcrest.CoreMatchers; |
| import org.hamcrest.MatcherAssert; |
| import org.junit.Test; |
| |
| /** |
| * Tests for {@link NamedElementChain}. |
| */ |
| public class TestNamedElementChain { |
| |
| @Test |
| public void testBasics() { |
| final NamedElementChain<Character> list = new NamedElementChain<>(); |
| MatcherAssert.assertThat(list.getFirst(), CoreMatchers.nullValue()); |
| MatcherAssert.assertThat(list.getLast(), CoreMatchers.nullValue()); |
| |
| final NamedElementChain<Character>.Node nodeA = list.addFirst('a', "a"); |
| |
| MatcherAssert.assertThat(list.getFirst(), CoreMatchers.sameInstance(nodeA)); |
| MatcherAssert.assertThat(list.getLast(), CoreMatchers.sameInstance(nodeA)); |
| |
| final NamedElementChain<Character>.Node nodeB = list.addLast('b', "b"); |
| |
| MatcherAssert.assertThat(list.getFirst(), CoreMatchers.sameInstance(nodeA)); |
| MatcherAssert.assertThat(list.getLast(), CoreMatchers.sameInstance(nodeB)); |
| |
| final NamedElementChain<Character>.Node nodeZ = list.addLast('z', "z"); |
| |
| MatcherAssert.assertThat(list.getFirst(), CoreMatchers.sameInstance(nodeA)); |
| MatcherAssert.assertThat(list.getLast(), CoreMatchers.sameInstance(nodeZ)); |
| |
| MatcherAssert.assertThat(nodeA.getPrevious(), CoreMatchers.nullValue()); |
| MatcherAssert.assertThat(nodeA.getNext(), CoreMatchers.sameInstance(nodeB)); |
| MatcherAssert.assertThat(nodeB.getPrevious(), CoreMatchers.sameInstance(nodeA)); |
| MatcherAssert.assertThat(nodeB.getNext(), CoreMatchers.sameInstance(nodeZ)); |
| MatcherAssert.assertThat(nodeZ.getPrevious(), CoreMatchers.sameInstance(nodeB)); |
| MatcherAssert.assertThat(nodeZ.getNext(), CoreMatchers.nullValue()); |
| |
| final NamedElementChain<Character>.Node nodeD = list.addAfter("b", 'd', "d"); |
| MatcherAssert.assertThat(nodeD.getPrevious(), CoreMatchers.sameInstance(nodeB)); |
| MatcherAssert.assertThat(nodeD.getNext(), CoreMatchers.sameInstance(nodeZ)); |
| MatcherAssert.assertThat(nodeB.getNext(), CoreMatchers.sameInstance(nodeD)); |
| MatcherAssert.assertThat(nodeZ.getPrevious(), CoreMatchers.sameInstance(nodeD)); |
| |
| final NamedElementChain<Character>.Node nodeC = list.addBefore("d", 'c', "c"); |
| MatcherAssert.assertThat(nodeC.getPrevious(), CoreMatchers.sameInstance(nodeB)); |
| MatcherAssert.assertThat(nodeC.getNext(), CoreMatchers.sameInstance(nodeD)); |
| MatcherAssert.assertThat(nodeB.getNext(), CoreMatchers.sameInstance(nodeC)); |
| MatcherAssert.assertThat(nodeD.getPrevious(), CoreMatchers.sameInstance(nodeC)); |
| MatcherAssert.assertThat(list.getSize(), CoreMatchers.equalTo(5)); |
| |
| MatcherAssert.assertThat(list.remove("a"), CoreMatchers.is(true)); |
| MatcherAssert.assertThat(list.remove("z"), CoreMatchers.is(true)); |
| MatcherAssert.assertThat(list.remove("c"), CoreMatchers.is(true)); |
| MatcherAssert.assertThat(list.remove("c"), CoreMatchers.is(false)); |
| MatcherAssert.assertThat(list.remove("blah"), CoreMatchers.is(false)); |
| |
| MatcherAssert.assertThat(list.getFirst(), CoreMatchers.sameInstance(nodeB)); |
| MatcherAssert.assertThat(list.getLast(), CoreMatchers.sameInstance(nodeD)); |
| |
| MatcherAssert.assertThat(list.getSize(), CoreMatchers.equalTo(2)); |
| MatcherAssert.assertThat(list.addBefore("blah", 'e', "e"), CoreMatchers.nullValue()); |
| MatcherAssert.assertThat(list.getSize(), CoreMatchers.equalTo(2)); |
| |
| MatcherAssert.assertThat(list.addAfter("yada", 'e', "e"), CoreMatchers.nullValue()); |
| MatcherAssert.assertThat(list.getSize(), CoreMatchers.equalTo(2)); |
| } |
| |
| } |