public void FlatFileExtractorTestsTextFile()
{
FlatFileExtractor FlatFileExtractor = new FlatFileExtractor();
Action <PipelineContext, IProducerConsumerCollection <string>, ManualResetEvent> action = FlatFileExtractor.GetPausableWorkItem();
List <string> ResultList = new List <string>();
ConcurrentQueue <string> results = new ConcurrentQueue <string>();
PipelineContext pipelineContext = new PipelineContext()
{
FirstLineContainsHeaders = false,
SourceFilePath = @"..\..\..\D2S.LibraryTests\ExtractorTests.txt"
};
FlatFileExtractor.SetContext(pipelineContext);
action(pipelineContext, results, null);
ResultList = results.ToList();
foreach (string s in ResultList)
{
Console.WriteLine(s);
}
Assert.AreEqual(expected: "This is a line", actual: ResultList[0]);
Assert.AreEqual(expected: "this is also a line", actual: ResultList[1]);
Assert.AreEqual(expected: "EOF", actual: ResultList[2]);
}
public void PausingFileExtractorTest()
{
FlatFileExtractor FlatFileExtractor = new FlatFileExtractor();
Action <PipelineContext, IProducerConsumerCollection <string>, ManualResetEvent> action = FlatFileExtractor.GetPausableWorkItem();
List <string> ResultList = new List <string>();
PipelineContext pipelineContext = new PipelineContext()
{
FirstLineContainsHeaders = false,
SourceFilePath = @"..\..\..\D2S.LibraryTests\ExtractorTests.txt"
};
FlatFileExtractor.SetContext(pipelineContext);
// pass an unset resetevent to prevent immediate execution
ManualResetEvent pauseEvent = new ManualResetEvent(false);
// run method asynchronously
ConcurrentQueue <string> results = new ConcurrentQueue <string>();
Task work = Task.Factory.StartNew(
() =>
action(pipelineContext, results, pauseEvent)
);
Task.Delay(50).Wait(); //wait a small amount of time
//affirm that resultset is still empty as we have not unpaused the work
Assert.IsTrue(results.Count == 0);
//now unpause and affirm the work is completed
pauseEvent.Set();
work.Wait(); //syncronously waiting on work
ResultList = results.ToList();
foreach (string s in ResultList)
{
Console.WriteLine(s);
}
Assert.AreEqual(expected: "This is a line", actual: ResultList[0]);
Assert.AreEqual(expected: "this is also a line", actual: ResultList[1]);
Assert.AreEqual(expected: "EOF", actual: ResultList[2]);
}
