Lucene.Net.Index.TestPersistentSnapshotDeletionPolicy.TestSnapshotReleaseByGeneration C# (CSharp) Method

        public virtual void TestSnapshotReleaseByGeneration()
        {
            Directory dir = NewDirectory();
            IndexWriter writer = new IndexWriter(dir, GetConfig(Random(), GetDeletionPolicy(dir)));
            PersistentSnapshotDeletionPolicy psdp = (PersistentSnapshotDeletionPolicy)writer.Config.DelPolicy;
            PrepareIndexAndSnapshots(psdp, writer, 1);
            writer.Dispose();

            psdp.Release(Snapshots[0].Generation);

            psdp = new PersistentSnapshotDeletionPolicy(new KeepOnlyLastCommitDeletionPolicy(), dir, OpenMode_e.APPEND);
            Assert.AreEqual(0, psdp.SnapshotCount, "Should have no snapshots !");
            dir.Dispose();
        }