public virtual void TestEventCountingPdfEvent()
{
MultiThreadingTest.TestEventCounter eventCounter = new MultiThreadingTest.TestEventCounter();
IEventCounterFactory factory = new SimpleEventCounterFactory(eventCounter);
EventCounterHandler.GetInstance().Register(factory);
try {
int n = 16;
IMetaInfo metainfo = new TestMetaInfo();
Thread[] threads = new Thread[n];
for (int i = 0; i < n; i++)
{
// We do not use Runnable as the variable's type because of porting issues
DoImageOcrRunnable runnable = new DoImageOcrRunnable(tesseractReader, metainfo, new FileInfo(sourceFolder
+ "numbers_01.jpg"), new FileInfo(destinationFolder + "ocr-result-" + (i + 1) + ".txt"), 0 == i % 2);
threads[i] = GetThread(runnable);
}
for (int i = 0; i < n; i++)
{
threads[i].Start();
}
for (int i = 0; i < n; i++)
{
threads[i].Join();
}
NUnit.Framework.Assert.AreEqual(n, eventCounter.GetEvents().Count);
int expectedPdfEvents = n / 2;
int expectedImageEvents = n - expectedPdfEvents;
int foundPdfEvents = 0;
int foundImageEvents = 0;
for (int i = 0; i < n; i++)
{
if (PdfOcrTesseract4Event.TESSERACT4_IMAGE_TO_PDF == eventCounter.GetEvents()[i])
{
foundPdfEvents++;
}
else
{
if (PdfOcrTesseract4Event.TESSERACT4_IMAGE_OCR == eventCounter.GetEvents()[i])
{
foundImageEvents++;
}
}
NUnit.Framework.Assert.AreEqual(metainfo, eventCounter.GetMetaInfos()[i]);
}
NUnit.Framework.Assert.AreEqual(expectedImageEvents, foundImageEvents);
NUnit.Framework.Assert.AreEqual(expectedPdfEvents, foundPdfEvents);
}
finally {
EventCounterHandler.GetInstance().Unregister(factory);
}
}
private static Thread GetThread(DoImageOcrRunnable runnable)
{
return(new Thread(new ThreadStart(runnable.Run)));
}