private void Helper_Test_dataCon_Method_Three_Constituency2(string reportType, List <DataMeasureCandidateExt> expectedDataMeasuresList)
{
// Arrange
// Instantiate a ConstituencyList object
var testedClass = new TestedClass();
// Add the three constituencies to the list
testedClass.constituency.Add(Helper_KnownConstituencyDataRepository.GetKnownMiddlesbrough());
testedClass.constituency.Add(Helper_KnownConstituencyDataRepository.GetKnownNewcastleN());
testedClass.constituency.Add(Helper_KnownConstituencyDataRepository.GetKnownSunderlandN());
// Act
// Has constituencies in the list so expected to return an populated data measures list
var actualDataMeasuresList = testedClass.dataCon(reportType);
// Assert
// Expected data measures list should contain the same number of items as the actual data measures list
Assert.AreEqual(expectedDataMeasuresList.Count, actualDataMeasuresList.Count);
// Each expected data measure should be equal to the actual data measure, note that the values are given
// an accuracy of 4 decimal places to ensure they can be deemed equal (due to rounding)
for (int i = 0; i < expectedDataMeasuresList.Count; i++)
{
Assert.AreEqual(expectedDataMeasuresList[i].ConstituencyName, actualDataMeasuresList[i].ConstituencyName);
Assert.AreEqual(expectedDataMeasuresList[i].PartyName, actualDataMeasuresList[i].PartyName);
Assert.AreEqual(expectedDataMeasuresList[i].Firstname, actualDataMeasuresList[i].Firstname);
Assert.AreEqual(expectedDataMeasuresList[i].Lastname, actualDataMeasuresList[i].Lastname);
Assert.AreEqual(expectedDataMeasuresList[i].Votes, actualDataMeasuresList[i].Votes, 0.0001);
}
}
/// <summary>
/// Constructor taking in four parameters
/// </summary>
/// <param name="id">id parameter</param>
/// <param name="pcQueue">parameter for IPCQueue</param>
/// <param name="constituencyList">parameter of ConstituencyList</param>
/// <param name="progManager">parameter of ProgressManager</param>
public Consumer(string id, IPCQueue pcQueue, ConstituencyList constituencyList, ProgressManager progManager)
{
this.id = id;
finished = false; // Initially not finished
this.pcQueue = pcQueue;
this.constituencyList = constituencyList;
this.progManager = progManager;
(T = new Thread(run)).Start(); // Create a new thread for this consumer and get it started
RunningThreads++; // Increment the number of running consumer threads;
}
public void Test_dataCand_Method_No_Constituency_Candidates_Report()
{
// Arrange
// Instantiate a ConstituencyList object
var testedClass = new TestedClass();
// Act
// No constituencies in the list so expected to return an empty data measures list
var actualDataMeasuresList = testedClass.dataCand("Candidates");
// Assert
// Actual data measures list should be empty
Assert.AreEqual(0, actualDataMeasuresList.Count);
}
public void Test_dataCand_Method_Invalid_Report()
{
// Arrange
// Instantiate a ConstituencyList object
var testedClass = new TestedClass();
// Act
// Invalid report type asked for so should return null
var actualDataMeasuresList = testedClass.dataCand("INVALID");
// Assert
// Actual data measures list should be null
Assert.IsNull(actualDataMeasuresList);
}
/// <summary>
/// Load all the selected XML files into the program
/// </summary>
public void RunProducerConsumer()
{
//Create constituency list to hold individual constituency objects read from datasets
constituencyList = new ConstituencyList();
// Create progress manager with number of files to process
ProgressManager progManager = new ProgressManager(configData.configRecords.Count);
// Output message to indicate that the program has started
lblProgress.Text = "Creating and starting all producers and consumers";
// Create a PCQueue instance, give it a capacity of 4
var pcQueue = new PCQueue(4);
// Create 2 Producer instances and 2 Consumer instances, these will begin executing on
// their respective threads as soon as they are instantiated
Producer[] producers = { new Producer("P1", pcQueue, configData, IOhandler)
//,new Producer("P2", pcQueue, configData, IOhandler)
};
Consumer[] consumers = { new Consumer("C1", pcQueue, constituencyList, progManager),
new Consumer("C2", pcQueue, constituencyList, progManager) };
// Keep producing and consuming until all work items are completed
while (progManager.ItemsRemaining > 0)
{
;
}
// Output message to indicate that the program is shutting down
lblProgress.Text = "Shutting down all producers and consumers";
// Deactivate the PCQueue so it does not prevent waiting producer and/or consumer threads
// from completing
pcQueue.Active = false;
// Iterate through producers and signal them to finish
foreach (var p in producers)
{
p.Finished = true;
}
// Iterate through consumers and signal them to finish
foreach (var c in consumers)
{
c.Finished = true;
}
// We need to ensure that no thread waiting on Monitor.Wait() is stranded with
// no Monitor.Pulse() now possible since all producer and consumer threads have
// been signalled to stop, in the worse case all such threads could be stranded
// so pulse that many times to ensure enough pulses are made available (or the
// program can halt erroneously), wasted pulse are simply ignored
for (int i = 0; i < (Producer.RunningThreads + Consumer.RunningThreads); i++)
{
lock (pcQueue)
{
// Pulse the PCQueue to signal any waiting threads
Monitor.Pulse(pcQueue);
// Give a short break to the main thread so the pulses have time to be
// detected by any potentially waiting producer and/or consumer threads
Thread.Sleep(100);
}
}
// Once all producer and consumer threads have finally finished we can gracefully
// shutdown the main thread, this is achieved by spinning on a while() loop until
// there are no running threads, in this case we do not mind the main thread
// spinning as we are about to shutdown the program
while ((Producer.RunningThreads > 0) || (Consumer.RunningThreads > 0))
{
; // Wait by spinning
}
Console.WriteLine();
lblProgress.Text = "All producers and consumers shut down";
}
public ConsoleBasedUI(ICyclistFileReader IOhandler)
{
this.IOhandler = IOhandler;
this.configData = null;
this.cyclistList = null;
}
