| using NUnit.Framework; |
| using System; |
| using Assert = Lucene.Net.TestFramework.Assert; |
| |
| namespace Lucene.Net.Search |
| { |
| /* |
| * 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 AtomicReaderContext = Lucene.Net.Index.AtomicReaderContext; |
| using LuceneTestCase = Lucene.Net.Util.LuceneTestCase; |
| |
| [TestFixture] |
| public class TestCachingCollector : LuceneTestCase |
| { |
| private const double ONE_BYTE = 1.0 / (1024 * 1024); // 1 byte out of MB |
| |
| private class MockScorer : Scorer |
| { |
| internal MockScorer() |
| : base((Weight)null) |
| { |
| } |
| |
| public override float GetScore() |
| { |
| return 0; |
| } |
| |
| public override int Freq => 0; |
| |
| public override int DocID => 0; |
| |
| public override int NextDoc() |
| { |
| return 0; |
| } |
| |
| public override int Advance(int target) |
| { |
| return 0; |
| } |
| |
| public override long GetCost() |
| { |
| return 1; |
| } |
| } |
| |
| private class NoOpCollector : ICollector |
| { |
| private readonly bool acceptDocsOutOfOrder; |
| |
| public NoOpCollector(bool acceptDocsOutOfOrder) |
| { |
| this.acceptDocsOutOfOrder = acceptDocsOutOfOrder; |
| } |
| |
| public virtual void SetScorer(Scorer scorer) |
| { |
| } |
| |
| public virtual void Collect(int doc) |
| { |
| } |
| |
| public virtual void SetNextReader(AtomicReaderContext context) |
| { |
| } |
| |
| public virtual bool AcceptsDocsOutOfOrder => acceptDocsOutOfOrder; |
| } |
| |
| [Test] |
| public virtual void TestBasic() |
| { |
| foreach (bool cacheScores in new bool[] { false, true }) |
| { |
| CachingCollector cc = CachingCollector.Create(new NoOpCollector(false), cacheScores, 1.0); |
| cc.SetScorer(new MockScorer()); |
| |
| // collect 1000 docs |
| for (int i = 0; i < 1000; i++) |
| { |
| cc.Collect(i); |
| } |
| |
| // now replay them |
| cc.Replay(new CollectorAnonymousInnerClassHelper(this)); |
| } |
| } |
| |
| private class CollectorAnonymousInnerClassHelper : ICollector |
| { |
| private readonly TestCachingCollector outerInstance; |
| |
| public CollectorAnonymousInnerClassHelper(TestCachingCollector outerInstance) |
| { |
| this.outerInstance = outerInstance; |
| prevDocID = -1; |
| } |
| |
| internal int prevDocID; |
| |
| public virtual void SetScorer(Scorer scorer) |
| { |
| } |
| |
| public virtual void SetNextReader(AtomicReaderContext context) |
| { |
| } |
| |
| public virtual void Collect(int doc) |
| { |
| Assert.AreEqual(prevDocID + 1, doc); |
| prevDocID = doc; |
| } |
| |
| public virtual bool AcceptsDocsOutOfOrder => false; |
| } |
| |
| [Test] |
| public virtual void TestIllegalStateOnReplay() |
| { |
| CachingCollector cc = CachingCollector.Create(new NoOpCollector(false), true, 50 * ONE_BYTE); |
| cc.SetScorer(new MockScorer()); |
| |
| // collect 130 docs, this should be enough for triggering cache abort. |
| for (int i = 0; i < 130; i++) |
| { |
| cc.Collect(i); |
| } |
| |
| Assert.IsFalse(cc.IsCached, "CachingCollector should not be cached due to low memory limit"); |
| |
| try |
| { |
| cc.Replay(new NoOpCollector(false)); |
| Assert.Fail("replay should fail if CachingCollector is not cached"); |
| } |
| #pragma warning disable 168 |
| catch (InvalidOperationException e) |
| #pragma warning restore 168 |
| { |
| // expected |
| } |
| } |
| |
| [Test] |
| public virtual void TestIllegalCollectorOnReplay() |
| { |
| // tests that the Collector passed to replay() has an out-of-order mode that |
| // is valid with the Collector passed to the ctor |
| |
| // 'src' Collector does not support out-of-order |
| CachingCollector cc = CachingCollector.Create(new NoOpCollector(false), true, 50 * ONE_BYTE); |
| cc.SetScorer(new MockScorer()); |
| for (int i = 0; i < 10; i++) |
| { |
| cc.Collect(i); |
| } |
| cc.Replay(new NoOpCollector(true)); // this call should not fail |
| cc.Replay(new NoOpCollector(false)); // this call should not fail |
| |
| // 'src' Collector supports out-of-order |
| cc = CachingCollector.Create(new NoOpCollector(true), true, 50 * ONE_BYTE); |
| cc.SetScorer(new MockScorer()); |
| for (int i = 0; i < 10; i++) |
| { |
| cc.Collect(i); |
| } |
| cc.Replay(new NoOpCollector(true)); // this call should not fail |
| try |
| { |
| cc.Replay(new NoOpCollector(false)); // this call should fail |
| Assert.Fail("should have failed if an in-order Collector was given to replay(), " + "while CachingCollector was initialized with out-of-order collection"); |
| } |
| #pragma warning disable 168 |
| catch (ArgumentException e) |
| #pragma warning restore 168 |
| { |
| // ok |
| } |
| } |
| |
| [Test] |
| public virtual void TestCachedArraysAllocation() |
| { |
| // tests the cached arrays allocation -- if the 'nextLength' was too high, |
| // caching would terminate even if a smaller length would suffice. |
| |
| // set RAM limit enough for 150 docs + random(10000) |
| int numDocs = Random.Next(10000) + 150; |
| foreach (bool cacheScores in new bool[] { false, true }) |
| { |
| int bytesPerDoc = cacheScores ? 8 : 4; |
| CachingCollector cc = CachingCollector.Create(new NoOpCollector(false), cacheScores, bytesPerDoc * ONE_BYTE * numDocs); |
| cc.SetScorer(new MockScorer()); |
| for (int i = 0; i < numDocs; i++) |
| { |
| cc.Collect(i); |
| } |
| Assert.IsTrue(cc.IsCached); |
| |
| // The 151's document should terminate caching |
| cc.Collect(numDocs); |
| Assert.IsFalse(cc.IsCached); |
| } |
| } |
| |
| [Test] |
| public virtual void TestNoWrappedCollector() |
| { |
| foreach (bool cacheScores in new bool[] { false, true }) |
| { |
| // create w/ null wrapped collector, and test that the methods work |
| CachingCollector cc = CachingCollector.Create(true, cacheScores, 50 * ONE_BYTE); |
| cc.SetNextReader(null); |
| cc.SetScorer(new MockScorer()); |
| cc.Collect(0); |
| |
| Assert.IsTrue(cc.IsCached); |
| cc.Replay(new NoOpCollector(true)); |
| } |
| } |
| } |
| } |