Lucene.Net.Index.MergePolicy.Clone C# (CSharp) Method

        public virtual object Clone()
        {
            MergePolicy clone;
            clone = (MergePolicy)base.MemberwiseClone();

            clone.Writer = new SetOnce<IndexWriter>();
            return clone;
        }

        public virtual void TestClone()
        {
            IndexWriterConfig conf  = new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random()));
            IndexWriterConfig clone = (IndexWriterConfig)conf.Clone();

            // Make sure parameters that can't be reused are cloned
            IndexDeletionPolicy delPolicy      = conf.IndexDeletionPolicy;
            IndexDeletionPolicy delPolicyClone = clone.IndexDeletionPolicy;

            Assert.IsTrue(delPolicy.GetType() == delPolicyClone.GetType() && (delPolicy != delPolicyClone || delPolicy.Clone() == delPolicyClone.Clone()));

            FlushPolicy flushPolicy      = conf.FlushPolicy;
            FlushPolicy flushPolicyClone = clone.FlushPolicy;

            Assert.IsTrue(flushPolicy.GetType() == flushPolicyClone.GetType() && (flushPolicy != flushPolicyClone || flushPolicy.Clone() == flushPolicyClone.Clone()));

            DocumentsWriterPerThreadPool pool      = conf.IndexerThreadPool;
            DocumentsWriterPerThreadPool poolClone = clone.IndexerThreadPool;

            Assert.IsTrue(pool.GetType() == poolClone.GetType() && (pool != poolClone || pool.Clone() == poolClone.Clone()));

            MergePolicy mergePolicy      = conf.MergePolicy;
            MergePolicy mergePolicyClone = clone.MergePolicy;

            Assert.IsTrue(mergePolicy.GetType() == mergePolicyClone.GetType() && (mergePolicy != mergePolicyClone || mergePolicy.Clone() == mergePolicyClone.Clone()));

            IMergeScheduler mergeSched      = conf.MergeScheduler;
            IMergeScheduler mergeSchedClone = clone.MergeScheduler;

            Assert.IsTrue(mergeSched.GetType() == mergeSchedClone.GetType() && (mergeSched != mergeSchedClone || mergeSched.Clone() == mergeSchedClone.Clone()));

            conf.SetMergeScheduler(new SerialMergeScheduler());
#if !FEATURE_CONCURRENTMERGESCHEDULER
            Assert.AreEqual(typeof(TaskMergeScheduler), clone.MergeScheduler.GetType());
#else
            Assert.AreEqual(typeof(ConcurrentMergeScheduler), clone.MergeScheduler.GetType());
#endif
        }