private void AssertChunking(Random random, int chunkSize)
{
DirectoryInfo path = CreateTempDir("mmap" + chunkSize);
MMapDirectory mmapDir = new MMapDirectory(path, null, chunkSize);
// we will map a lot, try to turn on the unmap hack
if (MMapDirectory.UNMAP_SUPPORTED)
{
mmapDir.UseUnmap = true;
}
MockDirectoryWrapper dir = new MockDirectoryWrapper(random, mmapDir);
RandomIndexWriter writer = new RandomIndexWriter(random, dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).SetMergePolicy(NewLogMergePolicy()));
Document doc = new Document();
Field docid = NewStringField("docid", "0", Field.Store.YES);
Field junk = NewStringField("junk", "", Field.Store.YES);
doc.Add(docid);
doc.Add(junk);
int numDocs = 100;
for (int i = 0; i < numDocs; i++)
{
docid.StringValue = "" + i;
junk.StringValue = TestUtil.RandomUnicodeString(random);
writer.AddDocument(doc);
}
IndexReader reader = writer.Reader;
writer.Dispose();
int numAsserts = AtLeast(100);
for (int i = 0; i < numAsserts; i++)
{
int docID = random.Next(numDocs);
Assert.AreEqual("" + docID, reader.Document(docID).Get("docid"));
}
reader.Dispose();
dir.Dispose();
}
public virtual void TestFlushExceptions()
{
#if NETCOREAPP2_0
fail("LUCENENET TODO: Causing fatal crashes intermittently on NETCOREAPP2.0");
#endif
MockDirectoryWrapper directory = NewMockDirectory();
FailOnlyOnFlush failure = new FailOnlyOnFlush(this);
directory.FailOn(failure);
IndexWriter writer = new IndexWriter(directory, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)).SetMaxBufferedDocs(2));
Document doc = new Document();
Field idField = NewStringField("id", "", Field.Store.YES);
doc.Add(idField);
int extraCount = 0;
for (int i = 0; i < 10; i++)
{
if (VERBOSE)
{
Console.WriteLine("TEST: iter=" + i);
}
for (int j = 0; j < 20; j++)
{
idField.SetStringValue(Convert.ToString(i * 20 + j));
writer.AddDocument(doc);
}
// must cycle here because sometimes the merge flushes
// the doc we just added and so there's nothing to
// flush, and we don't hit the exception
while (true)
{
writer.AddDocument(doc);
failure.SetDoFail();
try
{
writer.Flush(true, true);
if (failure.hitExc)
{
Assert.Fail("failed to hit IOException");
}
extraCount++;
}
catch (IOException ioe)
{
if (VERBOSE)
{
Console.WriteLine(ioe.StackTrace);
}
failure.ClearDoFail();
break;
}
}
Assert.AreEqual(20 * (i + 1) + extraCount, writer.NumDocs);
}
writer.Dispose();
IndexReader reader = DirectoryReader.Open(directory);
Assert.AreEqual(200 + extraCount, reader.NumDocs);
reader.Dispose();
directory.Dispose();
}
