| using J2N.Runtime.CompilerServices; |
| using NUnit.Framework; |
| using System; |
| using System.Collections.Generic; |
| using JCG = J2N.Collections.Generic; |
| |
| namespace Lucene.Net.Util |
| { |
| /* |
| * 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. |
| */ |
| |
| [TestFixture] |
| public class TestIdentityHashSet : LuceneTestCase |
| { |
| |
| [Test] |
| public virtual void TestCheck() |
| { |
| Random rnd = Random; |
| |
| ISet<object> jdk = new JCG.HashSet<object>(IdentityEqualityComparer<object>.Default); |
| RamUsageEstimator.IdentityHashSet<object> us = new RamUsageEstimator.IdentityHashSet<object>(); |
| |
| int max = 100000; |
| int threshold = 256; |
| for (int i = 0; i < max; i++) |
| { |
| // some of these will be interned and some will not so there will be collisions. |
| int? v = rnd.Next(threshold); |
| |
| bool e1 = jdk.Contains(v); |
| bool e2 = us.Contains(v); |
| Assert.AreEqual(e1, e2); |
| |
| e1 = jdk.Add(v); |
| e2 = us.Add(v); |
| Assert.AreEqual(e1, e2); |
| } |
| |
| ISet<object> collected = new JCG.HashSet<object>(IdentityEqualityComparer<object>.Default); |
| foreach (object o in us) |
| { |
| collected.Add(o); |
| } |
| |
| assertEquals(collected, jdk); |
| } |
| } |
| } |