Lucene.Net.Index.TestIndexWriterReader.TestReopenAfterNoRealChange C# (CSharp) Метод

        public virtual void TestReopenAfterNoRealChange()
        {
            Directory d = GetAssertNoDeletesDirectory(NewDirectory());
            IndexWriter w = new IndexWriter(d, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())));

            DirectoryReader r = w.Reader; // start pooling readers

            DirectoryReader r2 = DirectoryReader.OpenIfChanged(r);
            Assert.IsNull(r2);

            w.AddDocument(new Document());
            DirectoryReader r3 = DirectoryReader.OpenIfChanged(r);
            Assert.IsNotNull(r3);
            Assert.IsTrue(r3.Version != r.Version);
            Assert.IsTrue(r3.Current);

            // Deletes nothing in reality...:
            w.DeleteDocuments(new Term("foo", "bar"));

            // ... but IW marks this as not current:
            Assert.IsFalse(r3.Current);
            DirectoryReader r4 = DirectoryReader.OpenIfChanged(r3);
            Assert.IsNull(r4);

            // Deletes nothing in reality...:
            w.DeleteDocuments(new Term("foo", "bar"));
            DirectoryReader r5 = DirectoryReader.OpenIfChanged(r3, w, true);
            Assert.IsNull(r5);

            r3.Dispose();

            w.Dispose();
            d.Dispose();
        }