public void ShouldDiscardEpochsWithExceptionalStop()
{
var c = new Controller();
bool evt = false;
c.DAQController = new ExceptionThrowingDAQController();
c.DAQController.Clock = c.DAQController as IClock;
c.Clock = c.DAQController as IClock;
var persistor = new FakeEpochPersistor();
c.DiscardedEpoch += (co, args) => evt = true;
var e = new Epoch(UNUSED_PROTOCOL);
try
{
c.RunEpoch(e, persistor);
}
catch (Exception)
{ }
Assert.True(evt);
Assert.False(persistor.PersistedEpochs.ToList().Contains(e));
}
public void ShouldPersistCompletedEpochs()
{
var c = new Controller();
bool evt = false;
c.DAQController = new TestDAQController();
c.Clock = c.DAQController as IClock;
var persistor = new FakeEpochPersistor();
c.SavedEpoch += (co, args) =>
{
evt = true;
};
var dev = new UnitConvertingExternalDevice(UNUSED_DEVICE_NAME, UNUSED_DEVICE_MANUFACTURER, UNUSED_BACKGROUND)
{
Controller = c,
MeasurementConversionTarget = "V"
};
var outStream = new DAQOutputStream("outStream") { MeasurementConversionTarget = "V" };
var inStream = new DAQInputStream("inStream") { MeasurementConversionTarget = "V" };
(c.DAQController as IMutableDAQController).AddStream(outStream);
(c.DAQController as IMutableDAQController).AddStream(inStream);
var srate = new Measurement(10, "Hz");
outStream.SampleRate = srate;
inStream.SampleRate = srate;
dev.BindStream(outStream);
dev.BindStream(inStream);
var e = new Epoch(UNUSED_PROTOCOL);
var samples = new List<IMeasurement> { new Measurement(1.0m, "V"), new Measurement(1.0m, "V"), new Measurement(1.0m, "V") };
var data = new OutputData(samples,
srate,
true);
e.Stimuli[dev] = new RenderedStimulus((string) "stimID",
(IDictionary<string, object>) new Dictionary<string, object>(),
(IOutputData) data);
e.Responses[dev] = new Response();
e.Background[dev] = new Epoch.EpochBackground(new Measurement(0, "V"), srate);
((TestDAQController)c.DAQController).AddStreamMapping(outStream, inStream);
c.RunEpoch(e, persistor);
Assert.That(evt, Is.True.After(10*1000,100));
Assert.That(persistor.PersistedEpochs, Has.Member(e));
}
public void ShouldDiscardEpochsWithExceptionalStop()
{
var c = new Controller();
bool evt = false;
c.DAQController = new ExceptionThrowingDAQController();
c.DAQController.Clock = c.DAQController as IClock;
c.Clock = c.DAQController as IClock;
var persistor = new FakeEpochPersistor();
c.DiscardedEpoch += (co, args) => evt = true;
var e = new Epoch(UNUSED_PROTOCOL);
try
{
c.RunEpoch(e, persistor);
}
catch (Exception)
{ }
Assert.True(evt);
Assert.False(persistor.PersistedEpochs.ToList().Contains(e));
}
public void ShouldSetStreamBackgroundOnStop(
[Values(10000, 20000)] double sampleRate
)
{
Converters.Clear();
Converters.Register("V", "V",
// just an identity conversion for now, to pass Validate()
(IMeasurement m) => m);
HekaDAQInputStream.RegisterConverters();
HekaDAQOutputStream.RegisterConverters();
Assert.That(HekaDAQController.AvailableControllers().Count(), Is.GreaterThan(0));
foreach (var daq in HekaDAQController.AvailableControllers())
{
const double epochDuration = 1; //s
//Configure DAQ
daq.InitHardware();
try
{
daq.SampleRate = new Measurement((decimal)sampleRate, "Hz");
var controller = new Controller();
controller.Clock = daq.Clock;
controller.DAQController = daq;
const decimal expectedBackgroundVoltage = -3.2m;
var expectedBackground = new Measurement(expectedBackgroundVoltage, "V");
var dev0 = new UnitConvertingExternalDevice("Device0", "Manufacturer", controller, expectedBackground)
{
MeasurementConversionTarget = "V",
OutputSampleRate = daq.SampleRate,
InputSampleRate = daq.SampleRate
};
dev0.BindStream(daq.GetStreams("ao0").First() as IDAQOutputStream);
dev0.BindStream(daq.GetStreams("ai0").First() as IDAQInputStream);
dev0.Clock = daq.Clock;
controller.DiscardedEpoch += (c, args) => Console.WriteLine("Discarded epoch: " + args.Epoch);
// Setup Epoch
var e = new Epoch("HekaIntegration");
var nSamples = (int)TimeSpanExtensions.Samples(TimeSpan.FromSeconds(epochDuration), daq.SampleRate);
IList<IMeasurement> stimData = (IList<IMeasurement>)Enumerable.Range(0, nSamples)
.Select(i => new Measurement((decimal)(8 * Math.Sin(((double)i) / (nSamples / 10.0))), "V") as IMeasurement)
.ToList();
var stim = new RenderedStimulus((string) "RenderedStimulus", (IDictionary<string, object>) new Dictionary<string, object>(),
(IOutputData) new OutputData(stimData, daq.SampleRate, false));
e.Stimuli[dev0] = stim;
e.Responses[dev0] = new Response();
e.Backgrounds[dev0] = new Background(expectedBackground, daq.SampleRate);
//Run single epoch
var fakeEpochPersistor = new FakeEpochPersistor();
controller.RunEpoch(e, fakeEpochPersistor);
Thread.Sleep(TimeSpan.FromMilliseconds(100)); //allow DAC to settle
var actual = ((HekaDAQController)controller.DAQController).ReadStreamAsync(
daq.GetStreams("ai0").First() as IDAQInputStream);
//Should be within +/- 0.025 volts
Assert.That(actual.Data.First().QuantityInBaseUnits, Is.InRange(expectedBackground.QuantityInBaseUnits - (decimal)0.025,
expectedBackground.QuantityInBaseUnits + (decimal)0.025));
}
finally
{
if (daq.IsHardwareReady)
daq.CloseHardware();
}
}
}
public void SealLeak(
[Values(10000, 20000, 50000)] double sampleRate
)
{
Converters.Clear();
Converters.Register("V", "V",
// just an identity conversion for now, to pass Validate()
(IMeasurement m) => m);
HekaDAQInputStream.RegisterConverters();
HekaDAQOutputStream.RegisterConverters();
Assert.That(HekaDAQController.AvailableControllers().Count(), Is.GreaterThan(0));
foreach (var daq in HekaDAQController.AvailableControllers())
{
const double epochDuration = 10; //s
//Configure DAQ
daq.InitHardware();
try
{
daq.SampleRate = new Measurement((decimal)sampleRate, "Hz");
var controller = new Controller();
controller.Clock = daq.Clock;
controller.DAQController = daq;
const decimal expectedBackgroundVoltage = 3.2m;
var expectedBackground = new Measurement(expectedBackgroundVoltage, "V");
var dev0 = new UnitConvertingExternalDevice("Device0", "Manufacturer", controller, expectedBackground)
{
MeasurementConversionTarget = "V",
Clock = daq.Clock,
OutputSampleRate = daq.SampleRate,
InputSampleRate = daq.SampleRate
};
dev0.BindStream(daq.GetStreams("ao0").First() as IDAQOutputStream);
dev0.BindStream(daq.GetStreams("ai0").First() as IDAQInputStream);
controller.DiscardedEpoch += (c, args) => Console.WriteLine("Discarded epoch: " + args.Epoch);
// Setup Epoch
var e = new Epoch("HekaIntegration");
HekaDAQController cDAQ = daq;
var stim = new DelegatedStimulus("TEST_ID", "V", cDAQ.SampleRate, new Dictionary<string, object>(),
(parameters, duration) =>
DataForDuration(duration, cDAQ.SampleRate),
parameters => Option<TimeSpan>.None()
);
e.Stimuli[dev0] = stim;
e.Backgrounds[dev0] = new Background(expectedBackground, daq.SampleRate);
//Run single epoch
var fakeEpochPersistor = new FakeEpochPersistor();
new TaskFactory().StartNew(() =>
{
Thread.Sleep(TimeSpan.FromSeconds(epochDuration));
controller.RequestStop();
},
TaskCreationOptions.LongRunning
);
controller.RunEpoch(e, fakeEpochPersistor);
}
finally
{
if (daq.IsHardwareReady)
daq.CloseHardware();
}
}
}
public void RenderedStimulus(
[Values(1000, 10000, 20000, 50000)] double sampleRate,
[Values(2)] int nEpochs
)
{
Converters.Clear();
Converters.Register("V", "V",
// just an identity conversion for now, to pass Validate()
(IMeasurement m) => m);
HekaDAQInputStream.RegisterConverters();
HekaDAQOutputStream.RegisterConverters();
Assert.That(HekaDAQController.AvailableControllers().Count(), Is.GreaterThan(0));
foreach (var daq in HekaDAQController.AvailableControllers())
{
const double epochDuration = 5; //s
daq.InitHardware();
try
{
daq.SampleRate = new Measurement((decimal)sampleRate, "Hz");
var controller = new Controller { Clock = daq.Clock, DAQController = daq };
var dev0 = new UnitConvertingExternalDevice("Device0", "Manufacturer", controller, new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq.Clock,
OutputSampleRate = daq.SampleRate,
InputSampleRate = daq.SampleRate
};
dev0.BindStream((IDAQOutputStream)daq.GetStreams("ao0").First());
dev0.BindStream((IDAQInputStream)daq.GetStreams("ai0").First());
var dev1 = new UnitConvertingExternalDevice("Device1", "Manufacturer", controller, new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq.Clock,
OutputSampleRate = daq.SampleRate,
InputSampleRate = daq.SampleRate
};
dev1.BindStream((IDAQOutputStream)daq.GetStreams("ao1").First());
dev1.BindStream((IDAQInputStream)daq.GetStreams("ai1").First());
for (int j = 0; j < nEpochs; j++)
{
// Setup Epoch
var e = new Epoch("HekaIntegration" + j);
var nSamples = (int)TimeSpan.FromSeconds(epochDuration).Samples(daq.SampleRate);
IList<IMeasurement> stimData = (IList<IMeasurement>)Enumerable.Range(0, nSamples)
.Select(i => new Measurement((decimal)(8 * Math.Sin(((double)i) / (nSamples / 10.0))), "V") as IMeasurement)
.ToList();
e.Stimuli[dev0] = new RenderedStimulus((string) "RenderedStimulus", (IDictionary<string, object>) new Dictionary<string, object>(),
(IOutputData) new OutputData(stimData, daq.SampleRate));
e.Responses[dev0] = new Response();
e.Stimuli[dev1] = new RenderedStimulus((string) "RenderedStimulus", (IDictionary<string, object>) new Dictionary<string, object>(),
(IOutputData) new OutputData(Enumerable.Range(0, nSamples)
.Select(i => new Measurement((decimal)(8 * Math.Sin(((double)i) / (nSamples / 10.0))), "V"))
.ToList(),
daq.SampleRate));
e.Responses[dev1] = new Response();
//Run single epoch
var fakeEpochPersistor = new FakeEpochPersistor();
controller.RunEpoch(e, fakeEpochPersistor);
Assert.That((bool)e.StartTime, Is.True);
Assert.That((DateTimeOffset)e.StartTime, Is.LessThanOrEqualTo(controller.Clock.Now));
Assert.That(e.Responses[dev0].Duration, Is.EqualTo(((TimeSpan)e.Duration))
.Within(TimeSpanExtensions.FromSamples(1,
daq.
SampleRate)));
Assert.That(e.Responses[dev1].Duration, Is.EqualTo(((TimeSpan)e.Duration))
.Within(TimeSpanExtensions.FromSamples(1,
daq.
SampleRate)));
Assert.That(fakeEpochPersistor.PersistedEpochs, Contains.Item(e));
var failures0 =
e.Responses[dev0].Data.Select(
(t, i) => new { index = i, diff = t.QuantityInBaseUnits - stimData[i].QuantityInBaseUnits })
.Where(dif => Math.Abs(dif.diff) > (decimal)MAX_VOLTAGE_DIFF);
foreach (var failure in failures0.Take(10))
Console.WriteLine("{0}: {1}", failure.index, failure.diff);
/*
* According to Telly @ Heka, a patch cable may introduce 3-4 offset points
*/
Assert.That(failures0.Count(), Is.LessThanOrEqualTo(4));
/*
//Since we only have one patch cable on the test rig,
//we're not checking second device response values
var failures1 =
e.Responses[dev1].Data.Data.Select(
(t, i) => new { index = i, diff = t.QuantityInBaseUnit - stimData[i].QuantityInBaseUnit })
.Where(dif => Math.Abs(dif.diff) > MAX_VOLTAGE_DIFF);
foreach (var failure in failures1.Take(10))
Console.WriteLine("{0}: {1}", failure.index, failure.diff);
Assert.That(failures1.Count(), Is.EqualTo(0));
*/
}
}
finally
{
if (daq.IsHardwareReady)
daq.CloseHardware();
}
}
}
public void ContinuousAcquisition(
[Values(1000, 10000, 20000, 50000)] double sampleRate,
[Values(20)] int nEpochs)
{
Converters.Clear();
HekaDAQInputStream.RegisterConverters();
HekaDAQOutputStream.RegisterConverters();
Assert.That(HekaDAQController.AvailableControllers().Count(), Is.GreaterThan(0));
foreach (var daq in HekaDAQController.AvailableControllers())
{
const double epochDuration = 1; //s
try
{
daq.InitHardware();
daq.SampleRate = new Measurement((decimal)sampleRate, "Hz");
var controller = new Controller { Clock = daq.Clock, DAQController = daq };
var dev0 = new UnitConvertingExternalDevice("Device0", "Manufacturer", controller, new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq.Clock,
OutputSampleRate = daq.SampleRate,
InputSampleRate = daq.SampleRate
};
dev0.BindStream((IDAQOutputStream)daq.GetStreams("ao0").First());
dev0.BindStream((IDAQInputStream)daq.GetStreams("ai0").First());
var dev1 = new UnitConvertingExternalDevice("Device1", "Manufacturer", controller, new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq.Clock,
OutputSampleRate = daq.SampleRate,
InputSampleRate = daq.SampleRate
};
dev1.BindStream((IDAQOutputStream)daq.GetStreams("ao1").First());
dev1.BindStream((IDAQInputStream)daq.GetStreams("ai1").First());
var nDAQStarts = 0;
daq.Started += (evt, args) =>
{
nDAQStarts++;
};
var completedEpochs = new Queue<Epoch>();
controller.CompletedEpoch += (evt, args) =>
{
completedEpochs.Enqueue(args.Epoch);
if (completedEpochs.Count >= nEpochs)
{
controller.RequestStop();
}
};
var epochs = new Queue<Epoch>();
var nSamples = (int)TimeSpan.FromSeconds(epochDuration).Samples(daq.SampleRate);
// Triangle wave
var data = Enumerable.Range(0, nSamples/2)
.Select(k => new Measurement(k/(nSamples/2.0/10.0), "V") as IMeasurement)
.ToList();
var stimData = data.Concat(Enumerable.Reverse(data)).ToList();
var fakeEpochPersistor = new FakeEpochPersistor();
bool start = true;
for (int j = 0; j < nEpochs; j++)
{
var e = new Epoch("HekaIntegration" + j);
e.Stimuli[dev0] = new RenderedStimulus("Stim",
new Dictionary<string, object>(),
new OutputData(stimData, daq.SampleRate));
e.Responses[dev0] = new Response();
e.SetBackground(dev1, new Measurement(1, "V"), daq.SampleRate);
e.Responses[dev1] = new Response();
epochs.Enqueue(e);
controller.EnqueueEpoch(e);
if (start)
{
controller.StartAsync(fakeEpochPersistor);
start = false;
}
}
while (controller.IsRunning)
{
Thread.Sleep(1);
}
controller.WaitForCompletedEpochTasks();
var stopTime = controller.Clock.Now;
Assert.That(nDAQStarts <= 1, "Epochs did not run continuously");
Assert.AreEqual(epochs, completedEpochs);
Assert.AreEqual(fakeEpochPersistor.PersistedEpochs, completedEpochs);
DateTimeOffset prevTime = completedEpochs.First().StartTime;
foreach (var e in completedEpochs)
{
Assert.That((bool)e.StartTime, Is.True);
Assert.That((DateTimeOffset)e.StartTime, Is.GreaterThanOrEqualTo(prevTime));
Assert.That((DateTimeOffset)e.StartTime, Is.LessThanOrEqualTo(stopTime));
Assert.That(e.Responses[dev0].Duration, Is.EqualTo(((TimeSpan)e.Duration))
.Within(TimeSpanExtensions.FromSamples(1, daq.SampleRate)));
Assert.That(e.Responses[dev1].Duration, Is.EqualTo(((TimeSpan)e.Duration))
.Within(TimeSpanExtensions.FromSamples(1, daq.SampleRate)));
var failures0 =
e.Responses[dev0].Data.Select(
(t, i) => new {index = i, diff = t.QuantityInBaseUnits - stimData[i].QuantityInBaseUnits})
.Where(dif => Math.Abs(dif.diff) > (decimal) MAX_VOLTAGE_DIFF);
foreach (var failure in failures0.Take(10))
Console.WriteLine("{0}: {1}", failure.index, failure.diff);
/*
* According to Telly @ Heka, a patch cable may introduce 3-4 offset points
*/
Assert.That(failures0.Count(), Is.LessThanOrEqualTo(4));
prevTime = e.StartTime;
}
}
finally
{
if (daq.IsHardwareReady)
{
daq.CloseHardware();
}
}
}
}
public void MaxBandwidth(
[Values(1000,10000,25000,50000)] decimal sampleRate,
[Values(1,1,1,1)] int nEpochs,
[Values(4,4,4,4)] int nOut,
[Values(8,8,8,4)] int nIn
)
{
Converters.Clear();
HekaDAQInputStream.RegisterConverters();
HekaDAQOutputStream.RegisterConverters();
Assert.That(HekaDAQController.AvailableControllers().Count(), Is.GreaterThan(0));
foreach (var daq in HekaDAQController.AvailableControllers())
{
const double epochDuration = 10; //s
daq.InitHardware();
try
{
daq.SampleRate = new Measurement(sampleRate, "Hz");
var controller = new Controller { Clock = daq.Clock, DAQController = daq };
var outDevices = Enumerable.Range(0, nOut)
.Select(i =>
{
var dev0 = new UnitConvertingExternalDevice("Device_OUT_" + i, "Manufacturer", controller,
new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq.Clock,
OutputSampleRate = daq.SampleRate
};
dev0.BindStream((IDAQOutputStream)daq.GetStreams("ao" + i).First());
return dev0;
})
.ToList();
var inDevices = Enumerable.Range(0, nIn)
.Select(i =>
{
var dev0 = new UnitConvertingExternalDevice("Device_IN_" + i, "Manufacturer", controller,
new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq.Clock,
InputSampleRate = daq.SampleRate
};
dev0.BindStream((IDAQInputStream)daq.GetStreams("ai" + i).First());
return dev0;
})
.ToList();
for (int j = 0; j < nEpochs; j++)
{
// Setup Epoch
var e = new Epoch("HekaIntegration");
var nSamples = (int)TimeSpan.FromSeconds(epochDuration).Samples(daq.SampleRate);
IList<IMeasurement> stimData = Enumerable.Range(0, nSamples)
.Select(i => new Measurement((decimal)(8 * Math.Sin(((double)i) / (nSamples / 10.0))), "V") as IMeasurement)
.ToList();
foreach (var outDev in outDevices)
{
e.Stimuli[outDev] = new RenderedStimulus((string) "RenderedStimulus", (IDictionary<string, object>) new Dictionary<string, object>(),
(IOutputData) new OutputData(stimData, daq.SampleRate));
e.Backgrounds[outDev] = new Background(new Measurement(0, "V"), daq.SampleRate);
}
foreach (var inDev in inDevices)
{
e.Responses[inDev] = new Response();
}
//Run single epoch
var fakeEpochPersistor = new FakeEpochPersistor();
controller.RunEpoch(e, fakeEpochPersistor);
Assert.That((bool)e.StartTime, Is.True);
Assert.That((DateTimeOffset)e.StartTime, Is.LessThanOrEqualTo(controller.Clock.Now));
Assert.That(fakeEpochPersistor.PersistedEpochs, Contains.Item(e));
}
}
finally
{
if (daq.IsHardwareReady)
daq.CloseHardware();
}
}
}
public void ShouldPersistCompletedEpochs()
{
var c = new Controller();
bool evt = false;
c.DAQController = new TestDAQController();
c.Clock = c.DAQController as IClock;
var persistor = new FakeEpochPersistor();
c.SavedEpoch += (co, args) =>
{
evt = true;
};
var dev = new UnitConvertingExternalDevice(UNUSED_DEVICE_NAME, UNUSED_DEVICE_MANUFACTURER, UNUSED_BACKGROUND)
{
Controller = c,
MeasurementConversionTarget = "V"
};
var outStream = new DAQOutputStream("outStream")
{
MeasurementConversionTarget = "V"
};
var inStream = new DAQInputStream("inStream")
{
MeasurementConversionTarget = "V"
};
(c.DAQController as IMutableDAQController).AddStream(outStream);
(c.DAQController as IMutableDAQController).AddStream(inStream);
var srate = new Measurement(10, "Hz");
outStream.SampleRate = srate;
inStream.SampleRate = srate;
dev.BindStream(outStream);
dev.BindStream(inStream);
var e = new Epoch(UNUSED_PROTOCOL);
var samples = new List <IMeasurement> {
new Measurement(1.0m, "V"), new Measurement(1.0m, "V"), new Measurement(1.0m, "V")
};
var data = new OutputData(samples,
srate,
true);
e.Stimuli[dev] = new RenderedStimulus((string)"stimID",
(IDictionary <string, object>) new Dictionary <string, object>(),
(IOutputData)data);
e.Responses[dev] = new Response();
e.Background[dev] = new Epoch.EpochBackground(new Measurement(0, "V"), srate);
((TestDAQController)c.DAQController).AddStreamMapping(outStream, inStream);
c.RunEpoch(e, persistor);
Assert.That(evt, Is.True.After(10 * 1000, 100));
Assert.That(persistor.PersistedEpochs, Has.Member(e));
}
