| /* |
| * 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. |
| */ |
| |
| using Lucene.Net.Support; |
| using NUnit.Framework; |
| using System; |
| using System.Collections.Generic; |
| using JCG = J2N.Collections.Generic; |
| |
| namespace Lucene.Net.Util |
| { |
| [TestFixture] |
| public class TestFilterIterator : LuceneTestCase |
| { |
| private static readonly ISet<string> set = new JCG.SortedSet<string> { "a", "b", "c" }; |
| |
| private static void AssertNoMore<T1>(IEnumerator<T1> it) |
| { |
| Assert.IsFalse(it.MoveNext()); |
| Assert.IsFalse(it.MoveNext()); |
| } |
| |
| [Test] |
| public virtual void TestEmpty() |
| { |
| IEnumerator<string> it = new FilterIteratorAnonymousInnerClassHelper(this, set.GetEnumerator()); |
| AssertNoMore(it); |
| } |
| |
| private class FilterIteratorAnonymousInnerClassHelper : FilterIterator<string> |
| { |
| private readonly TestFilterIterator outerInstance; |
| |
| public FilterIteratorAnonymousInnerClassHelper(TestFilterIterator outerInstance, IEnumerator<string> iterator) |
| : base(iterator) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool PredicateFunction(string s) |
| { |
| return false; |
| } |
| } |
| |
| [Test] |
| public virtual void TestA1() |
| { |
| IEnumerator<string> it = new FilterIteratorAnonymousInnerClassHelper2(this, set.GetEnumerator()); |
| Assert.IsTrue(it.MoveNext()); |
| Assert.AreEqual("a", it.Current); |
| AssertNoMore(it); |
| } |
| |
| private class FilterIteratorAnonymousInnerClassHelper2 : FilterIterator<string> |
| { |
| private readonly TestFilterIterator outerInstance; |
| |
| public FilterIteratorAnonymousInnerClassHelper2(TestFilterIterator outerInstance, IEnumerator<string> iterator) |
| : base(iterator) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool PredicateFunction(string s) |
| { |
| return "a".Equals(s, StringComparison.Ordinal); |
| } |
| } |
| |
| [Test] |
| public virtual void TestA2() |
| { |
| IEnumerator<string> it = new FilterIteratorAnonymousInnerClassHelper3(this, set.GetEnumerator()); |
| // this time without check: Assert.IsTrue(it.hasNext()); |
| it.MoveNext(); |
| Assert.AreEqual("a", it.Current); |
| AssertNoMore(it); |
| } |
| |
| private class FilterIteratorAnonymousInnerClassHelper3 : FilterIterator<string> |
| { |
| private readonly TestFilterIterator outerInstance; |
| |
| public FilterIteratorAnonymousInnerClassHelper3(TestFilterIterator outerInstance, IEnumerator<string> iterator) |
| : base(iterator) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool PredicateFunction(string s) |
| { |
| return "a".Equals(s, StringComparison.Ordinal); |
| } |
| } |
| |
| [Test] |
| public virtual void TestB1() |
| { |
| IEnumerator<string> it = new FilterIteratorAnonymousInnerClassHelper4(this, set.GetEnumerator()); |
| Assert.IsTrue(it.MoveNext()); |
| Assert.AreEqual("b", it.Current); |
| AssertNoMore(it); |
| } |
| |
| private class FilterIteratorAnonymousInnerClassHelper4 : FilterIterator<string> |
| { |
| private readonly TestFilterIterator outerInstance; |
| |
| public FilterIteratorAnonymousInnerClassHelper4(TestFilterIterator outerInstance, IEnumerator<string> iterator) |
| : base(iterator) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool PredicateFunction(string s) |
| { |
| return "b".Equals(s, StringComparison.Ordinal); |
| } |
| } |
| |
| [Test] |
| public virtual void TestB2() |
| { |
| IEnumerator<string> it = new FilterIteratorAnonymousInnerClassHelper5(this, set.GetEnumerator()); |
| // this time without check: Assert.IsTrue(it.hasNext()); |
| it.MoveNext(); |
| Assert.AreEqual("b", it.Current); |
| AssertNoMore(it); |
| } |
| |
| private class FilterIteratorAnonymousInnerClassHelper5 : FilterIterator<string> |
| { |
| private readonly TestFilterIterator outerInstance; |
| |
| public FilterIteratorAnonymousInnerClassHelper5(TestFilterIterator outerInstance, IEnumerator<string> iterator) |
| : base(iterator) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool PredicateFunction(string s) |
| { |
| return "b".Equals(s, StringComparison.Ordinal); |
| } |
| } |
| |
| [Test] |
| public virtual void TestAll1() |
| { |
| IEnumerator<string> it = new FilterIteratorAnonymousInnerClassHelper6(this, set.GetEnumerator()); |
| Assert.IsTrue(it.MoveNext()); |
| Assert.AreEqual("a", it.Current); |
| Assert.IsTrue(it.MoveNext()); |
| Assert.AreEqual("b", it.Current); |
| Assert.IsTrue(it.MoveNext()); |
| Assert.AreEqual("c", it.Current); |
| AssertNoMore(it); |
| } |
| |
| private class FilterIteratorAnonymousInnerClassHelper6 : FilterIterator<string> |
| { |
| private readonly TestFilterIterator outerInstance; |
| |
| public FilterIteratorAnonymousInnerClassHelper6(TestFilterIterator outerInstance, IEnumerator<string> iterator) |
| : base(iterator) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool PredicateFunction(string s) |
| { |
| return true; |
| } |
| } |
| |
| [Test] |
| public virtual void TestAll2() |
| { |
| IEnumerator<string> it = new FilterIteratorAnonymousInnerClassHelper7(this, set.GetEnumerator()); |
| it.MoveNext(); |
| Assert.AreEqual("a", it.Current); |
| it.MoveNext(); |
| Assert.AreEqual("b", it.Current); |
| it.MoveNext(); |
| Assert.AreEqual("c", it.Current); |
| AssertNoMore(it); |
| } |
| |
| private class FilterIteratorAnonymousInnerClassHelper7 : FilterIterator<string> |
| { |
| private readonly TestFilterIterator outerInstance; |
| |
| public FilterIteratorAnonymousInnerClassHelper7(TestFilterIterator outerInstance, IEnumerator<string> iterator) |
| : base(iterator) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool PredicateFunction(string s) |
| { |
| return true; |
| } |
| } |
| |
| //// LUCENENET specific: .NET doesn't support Remove(), so this test doesn't apply |
| //[Test] |
| //public virtual void TestUnmodifiable() |
| //{ |
| // IEnumerator<string> it = new FilterIteratorAnonymousInnerClassHelper8(this, Set.GetEnumerator()); |
| // it.MoveNext(); |
| // Assert.AreEqual("a", it.Current); |
| // try |
| // { |
| |
| // it.Remove(); |
| // Assert.Fail("Should throw UnsupportedOperationException"); |
| // } |
| // catch (NotSupportedException) |
| // { |
| // // pass |
| // } |
| //} |
| |
| private class FilterIteratorAnonymousInnerClassHelper8 : FilterIterator<string> |
| { |
| private readonly TestFilterIterator outerInstance; |
| |
| public FilterIteratorAnonymousInnerClassHelper8(TestFilterIterator outerInstance, IEnumerator<string> iterator) |
| : base(iterator) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool PredicateFunction(string s) |
| { |
| return true; |
| } |
| } |
| } |
| } |