public virtual void TestDeletePartiallyWrittenFilesIfAbort()
{
Directory dir = NewDirectory();
IndexWriterConfig iwConf = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random()));
iwConf.SetMaxBufferedDocs(RandomInts.NextIntBetween(Random(), 2, 30));
iwConf.SetCodec(CompressingCodec.RandomInstance(Random()));
// disable CFS because this test checks file names
iwConf.SetMergePolicy(NewLogMergePolicy(false));
iwConf.SetUseCompoundFile(false);
RandomIndexWriter iw = new RandomIndexWriter(Random(), dir, iwConf);
Document validDoc = new Document();
validDoc.Add(new IntField("id", 0, Field.Store.YES));
iw.AddDocument(validDoc);
iw.Commit();
// make sure that #writeField will fail to trigger an abort
Document invalidDoc = new Document();
FieldType fieldType = new FieldType();
fieldType.Stored = true;
invalidDoc.Add(new FieldAnonymousInnerClassHelper(this, fieldType));
Assert.Throws <ArgumentException>(() =>
{
try
{
iw.AddDocument(invalidDoc);
iw.Commit();
}
finally
{
int counter = 0;
foreach (string fileName in dir.ListAll())
{
if (fileName.EndsWith(".fdt") || fileName.EndsWith(".fdx"))
{
counter++;
}
}
// Only one .fdt and one .fdx files must have been found
Assert.AreEqual(2, counter);
iw.Dispose();
dir.Dispose();
}
});
}