// Runs test, with one thread, using the specific failure
// to trigger an IOException
public virtual void _testSingleThreadFailure(MockRAMDirectory.Failure failure)
{
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer());
writer.SetMaxBufferedDocs(2);
Document doc = new Document();
doc.Add(new Field("field", "aaa bbb ccc ddd eee fff ggg hhh iii jjj", Field.Store.YES, Field.Index.TOKENIZED, Field.TermVector.WITH_POSITIONS_OFFSETS));
for (int i = 0; i < 6; i++)
writer.AddDocument(doc);
dir.FailOn(failure);
failure.SetDoFail();
try
{
writer.AddDocument(doc);
writer.AddDocument(doc);
Assert.Fail("did not hit exception");
}
catch (System.IO.IOException)
{
}
failure.ClearDoFail();
writer.AddDocument(doc);
writer.Close(false);
}
// Runs test, with multiple threads, using the specific
// failure to trigger an IOException
public virtual void _testMultipleThreadsFailure(MockRAMDirectory.Failure failure)
{
int NUM_THREADS = 3;
for (int iter = 0; iter < 5; iter++)
{
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
ConcurrentMergeScheduler cms = new ConcurrentMergeScheduler();
// We expect disk full exceptions in the merge threads
cms.SetSuppressExceptions();
writer.SetMergeScheduler(cms);
writer.SetMaxBufferedDocs(2);
writer.SetMergeFactor(4);
IndexerThread[] threads = new IndexerThread[NUM_THREADS];
for (int i = 0; i < NUM_THREADS; i++)
threads[i] = new IndexerThread(this, writer, true);
for (int i = 0; i < NUM_THREADS; i++)
threads[i].Start();
System.Threading.Thread.Sleep(new System.TimeSpan((System.Int64) 10000 * 10));
dir.FailOn(failure);
failure.SetDoFail();
for (int i = 0; i < NUM_THREADS; i++)
{
threads[i].Join();
Assert.IsTrue(threads[i].error == null, "hit unexpected Throwable");
}
bool success = false;
try
{
writer.Close(false);
success = true;
}
catch (System.IO.IOException ioe)
{
failure.ClearDoFail();
writer.Close(false);
}
if (success)
{
IndexReader reader = IndexReader.Open(dir);
for (int j = 0; j < reader.MaxDoc(); j++)
{
if (!reader.IsDeleted(j))
{
reader.Document(j);
reader.GetTermFreqVectors(j);
}
}
reader.Close();
}
dir.Close();
}
}