public void Extracting_ValidInput_ValidOutput()
{
// Arrange
IInputQueue<string> inputQueue = new StringInputQueue();
IOutputQueue<string> outputQueue = new StringOutputQueue();
inputQueue.Enqueue("https://www.google.sk/");
IExtractor<string, string> extractor = new SyncStringToStringExtractor(new MockWebClient());
bool finished = false;
// Act
extractor.Extract(inputQueue, outputQueue, () => finished = true);
// Assert
string output = outputQueue.Dequeue();
Assert.IsNotNull(output);
Assert.IsTrue(finished);
}
public void StartProcessing_WebException_DoNotPropagateException()
{
// Arrange
IInputQueue<string> inputQueue = new StringInputQueue();
inputQueue.Enqueue("https://en.wikipedia.org/wiki/Web_scraping");
inputQueue.Enqueue("https://en.wikipedia.org/wiki/Foxfire");
IOutputQueue<string> outputQueue = new StringOutputQueue();
// Use ExceptionWebClient to simulate Web Exception
IExtractor<string, string> extractor = new SyncStringToStringExtractor(new ExceptionWebClient());
IProducerUnit producer = new ProducerUnit(inputQueue, outputQueue, extractor);
// Act
producer.StartProcessing();
// Assert
int outputQueueLength = 0;
while (outputQueue.Dequeue() != null)
{
outputQueueLength++;
}
Assert.AreEqual(0, outputQueueLength);
}
public void StartProcessing_ValidInput_GetCorrectOutput()
{
// Arrange
IInputQueue<string> inputQueue = new StringInputQueue();
inputQueue.Enqueue("https://en.wikipedia.org/wiki/Web_scraping");
inputQueue.Enqueue("https://en.wikipedia.org/wiki/Firefox");
inputQueue.Enqueue("https://en.wikipedia.org/wiki/Foxfire");
IOutputQueue<string> outputQueue = new StringOutputQueue();
IExtractor<string, string> extractor = new SyncStringToStringExtractor(new MockWebClient());
IProducerUnit producer = new ProducerUnit(inputQueue, outputQueue, extractor);
// Act
producer.StartProcessing();
// Assert
int outputQueueLength = 0;
while (outputQueue.Dequeue() != null)
{
outputQueueLength++;
}
Assert.AreEqual(3, outputQueueLength);
}
