public void Reset_should_notify_property_changes()
{
// Assign
const double V = 3.2, S = 2.0, R = 1500;
var readings = new ElectricReadings(R, S);
readings.AddSample(new DataSample(T1, V + 0.4));
readings.AddSample(new DataSample(T2, V + 0.5));
readings.MonitorEvents();
// Act
readings.Reset();
// Assert
readings.ShouldNotRaisePropertyChangeFor(m => m.Resistance);
readings.ShouldNotRaisePropertyChangeFor(m => m.VoltageScale);
readings.ShouldRaisePropertyChangeFor(m => m.TimeStamp);
readings.ShouldRaisePropertyChangeFor(m => m.Voltage);
readings.ShouldRaisePropertyChangeFor(m => m.Current);
readings.ShouldRaisePropertyChangeFor(m => m.Power);
readings.ShouldRaisePropertyChangeFor(m => m.Energy);
}
public void SetResistance_readings_adjustment_cross_verification()
{
// Assign
const double R1 = 1700,
R2 = 1875;
const double S = 2.3;
const double V1 = 3.5,
V2 = 3.6;
var expectedReadings = new ElectricReadings(R1, S);
expectedReadings.AddSample(new DataSample(T1, V1));
expectedReadings.AddSample(new DataSample(T2, V2));
var actualReadings = new ElectricReadings(R2, S);
actualReadings.AddSample(new DataSample(T1, V1));
actualReadings.AddSample(new DataSample(T2, V2));
// Act
actualReadings.SetResistance(R1, adjustValues: true);
// Assert
actualReadings.ShouldBeEquivalentTo(expectedReadings, options => options
.Using(new DoubleAssertionRule(TOLERANCE)));
}
public void AddSample_handles_voltage_as_zero_when_it_is_less_or_equal_than_noise_threshold()
{
// Assign
const double R = 1700, S = 2.3;
const double noiseThreshold = 1.5;
const double V1 = 1.1 * noiseThreshold,
V2 = 1.0 * noiseThreshold,
V3 = 0.9 * noiseThreshold;
var expectedReadings = new ElectricReadings(R, S) { NoiseThreshold = 0.0 };
expectedReadings.AddSample(new DataSample(T1, V1));
expectedReadings.AddSample(new DataSample(T2, 0.0));
expectedReadings.AddSample(new DataSample(T3, 0.0));
// Act
var testedReadings = new ElectricReadings(R, S) { NoiseThreshold = noiseThreshold };
testedReadings.AddSample(new DataSample(T1, V1));
testedReadings.AddSample(new DataSample(T2, V2));
testedReadings.AddSample(new DataSample(T3, V3));
// Assert
testedReadings.ShouldBeEquivalentTo(expectedReadings, options => options
.Excluding(r => r.NoiseThreshold));
}
public void SetVoltageScale_readings_adjustment_cross_verification()
{
// Assign
const double R = 1730;
const double S1 = 2.0,
S2 = 10.0;
const double U1 = 220,
U2 = 224;
var electricReadings = new ElectricReadings(R, S1);
electricReadings.AddSample(new DataSample(T1, U1 / S1));
electricReadings.AddSample(new DataSample(T2, U2 / S1));
var actualReadings = new ElectricReadings(R, S2);
actualReadings.AddSample(new DataSample(T1, U1 / S1));
actualReadings.AddSample(new DataSample(T2, U2 / S1));
// Act
actualReadings.SetVoltageScale(S1, adjustValues: true);
// Assert
actualReadings.ShouldBeEquivalentTo(electricReadings, options => options
.Using(new DoubleAssertionRule(TOLERANCE)));
}
public void SetVoltageScale_without_adjustment_should_update_only_VoltageScale()
{
// Assign
const double R = 1730;
const double S1 = 3.0,
S2 = 10.0;
const double V1 = 3.1,
V2 = 3.2;
var expectedReadings = new ElectricReadings(R, S1);
expectedReadings.AddSample(new DataSample(T1, V1));
expectedReadings.AddSample(new DataSample(T2, V2));
var actualReadings = new ElectricReadings(R, S1);
actualReadings.AddSample(new DataSample(T1, V1));
actualReadings.AddSample(new DataSample(T2, V2));
// Act
actualReadings.SetVoltageScale(S2, adjustValues: false);
// Assert
actualReadings.ShouldBeEquivalentTo(expectedReadings, options => options
.Excluding(r => r.VoltageScale));
actualReadings.VoltageScale
.Should().Be(S2);
}
public void AddSample_handles_voltage_as_zero_when_it_is_less_or_equal_than_noise_threshold()
{
// Assign
const double R = 1700, S = 2.3;
const double noiseThreshold = 1.5;
const double V1 = 1.1 * noiseThreshold,
V2 = 1.0 * noiseThreshold,
V3 = 0.9 * noiseThreshold;
var expectedReadings = new ElectricReadings(R, S)
{
NoiseThreshold = 0.0
};
expectedReadings.AddSample(new DataSample(T1, V1));
expectedReadings.AddSample(new DataSample(T2, 0.0));
expectedReadings.AddSample(new DataSample(T3, 0.0));
// Act
var testedReadings = new ElectricReadings(R, S)
{
NoiseThreshold = noiseThreshold
};
testedReadings.AddSample(new DataSample(T1, V1));
testedReadings.AddSample(new DataSample(T2, V2));
testedReadings.AddSample(new DataSample(T3, V3));
// Assert
testedReadings.ShouldBeEquivalentTo(expectedReadings, options => options
.Excluding(r => r.NoiseThreshold));
}
public void SetResistance_without_adjustment_should_updated_only_Resistance()
{
// Assign
const double R = 1100, Rnew = 4500;
var expectedReadings = new ElectricReadings(R);
expectedReadings.AddSample(new DataSample(T1, 3.2));
expectedReadings.AddSample(new DataSample(T2, 3.1));
var testedReadings = new ElectricReadings(R);
testedReadings.AddSample(new DataSample(T1, 3.2));
testedReadings.AddSample(new DataSample(T2, 3.1));
testedReadings.MonitorEvents();
// Act
testedReadings.SetResistance(Rnew, adjustValues: false);
// Assert
testedReadings.ShouldBeEquivalentTo(expectedReadings, options => options
.Excluding(r => r.Resistance));
testedReadings.Resistance
.Should().Be(Rnew);
}
public Voltmeter(IDeviceManager deviceManager, ITaskQueue eventsQueue)
{
Contract.Requires <ArgumentNullException>(deviceManager != null);
Contract.Requires <ArgumentNullException>(eventsQueue != null);
DeviceManager = deviceManager;
EventsQueue = eventsQueue;
Readings = new ElectricReadings();
Use10BitVoltage = true;
PollingInterval = DeviceConstants.MinPollingInterval;
}
public Voltmeter(IDeviceManager deviceManager, ITaskQueue eventsQueue)
{
Contract.Requires<ArgumentNullException>(deviceManager != null);
Contract.Requires<ArgumentNullException>(eventsQueue != null);
DeviceManager = deviceManager;
EventsQueue = eventsQueue;
Readings = new ElectricReadings();
Use10BitVoltage = true;
PollingInterval = DeviceConstants.MinPollingInterval;
}
public void SetResistance_should_notify_property_change()
{
// Assign
const double R = 4500, S = 2.1;
var readings = new ElectricReadings(R, S);
readings.MonitorEvents();
// Act
readings.SetResistance(R * 1.1, adjustValues: false);
// Assert
readings.ShouldRaisePropertyChangeFor(m => m.Resistance);
}
public void Initial_values_and_Reset_cross_verification()
{
// Assign
const double S = 2.2, R = 2000;
var resetReadings = new ElectricReadings(R, S);
resetReadings.AddSample(new DataSample(T1, 4.0));
resetReadings.AddSample(new DataSample(T2, 3.0));
// Act
resetReadings.Reset();
var initialReadings = new ElectricReadings(R, S);
// Assert
resetReadings.ShouldBeEquivalentTo(initialReadings);
}
public void AddSample_on_sequence_calculations_verification()
{
// Assign
const double R = 1700, S = 2.3;
const double V1 = 2.9,
V2 = 3.1,
V3 = 3.2;
const double U1 = V1 * S,
U2 = V2 * S,
U3 = V3 * S;
const double I1 = U1 / R,
I2 = U2 / R,
I3 = U3 / R;
const double P1 = U1 * I1,
P2 = U2 * I2,
P3 = U3 * I3;
double E1 = 0.0,
E2 = E1 + (P1 + P2) / 2 * (T2 - T1).TotalSeconds,
E3 = E2 + (P2 + P3) / 2 * (T3 - T2).TotalSeconds;
// Act
var readings = new ElectricReadings(R, S);
readings.AddSample(new DataSample(T1, V1));
readings.AddSample(new DataSample(T2, V2));
readings.AddSample(new DataSample(T3, V3));
// Assert
readings.Resistance
.Should().BeApproximately(R, TOLERANCE);
readings.Voltage
.Should().BeApproximately(U3, TOLERANCE);
readings.Current
.Should().BeApproximately(I3, TOLERANCE);
readings.Power
.Should().BeApproximately(P3, TOLERANCE);
readings.Energy
.Should().BeApproximately(E3, TOLERANCE);
readings.TimeStamp
.Should().Be(T3);
}
public void AddSample_on_sequence_calculations_verification()
{
// Assign
const double R = 1700, S = 2.3;
const double V1 = 2.9,
V2 = 3.1,
V3 = 3.2;
const double U1 = V1 * S,
U2 = V2 * S,
U3 = V3 * S;
const double I1 = U1 / R,
I2 = U2 / R,
I3 = U3 / R;
const double P1 = U1 * I1,
P2 = U2 * I2,
P3 = U3 * I3;
double E1 = 0.0,
E2 = E1 + (P1 + P2) / 2 * (T2 - T1).TotalSeconds,
E3 = E2 + (P2 + P3) / 2 * (T3 - T2).TotalSeconds;
// Act
var readings = new ElectricReadings(R, S);
readings.AddSample(new DataSample(T1, V1));
readings.AddSample(new DataSample(T2, V2));
readings.AddSample(new DataSample(T3, V3));
// Assert
readings.Resistance
.Should().BeApproximately(R, TOLERANCE);
readings.Voltage
.Should().BeApproximately(U3, TOLERANCE);
readings.Current
.Should().BeApproximately(I3, TOLERANCE);
readings.Power
.Should().BeApproximately(P3, TOLERANCE);
readings.Energy
.Should().BeApproximately(E3, TOLERANCE);
readings.TimeStamp
.Should().Be(T3);
}
public void Initial_values_verification()
{
// Assign
const double S = 2.2, R = 2000;
// Act
var readings = new ElectricReadings(R, S);
// Assert
readings.Voltage
.Should().BeApproximately(0.0, TOLERANCE);
readings.VoltageScale
.Should().BeApproximately(S, TOLERANCE);
readings.Resistance
.Should().BeApproximately(R, TOLERANCE);
readings.Current
.Should().BeApproximately(0.0, TOLERANCE);
readings.Power
.Should().BeApproximately(0.0, TOLERANCE);
readings.Energy
.Should().BeApproximately(0.0, TOLERANCE);
readings.TimeStamp
.Should().Be(null);
}
public void Initial_values_and_Reset_cross_verification()
{
// Assign
const double S = 2.2, R = 2000;
var resetReadings = new ElectricReadings(R, S);
resetReadings.AddSample(new DataSample(T1, 4.0));
resetReadings.AddSample(new DataSample(T2, 3.0));
// Act
resetReadings.Reset();
var initialReadings = new ElectricReadings(R, S);
// Assert
resetReadings.ShouldBeEquivalentTo(initialReadings);
}
public void Initial_values_verification()
{
// Assign
const double S = 2.2, R = 2000;
// Act
var readings = new ElectricReadings(R, S);
// Assert
readings.Voltage
.Should().BeApproximately(0.0, TOLERANCE);
readings.VoltageScale
.Should().BeApproximately(S, TOLERANCE);
readings.Resistance
.Should().BeApproximately(R, TOLERANCE);
readings.Current
.Should().BeApproximately(0.0, TOLERANCE);
readings.Power
.Should().BeApproximately(0.0, TOLERANCE);
readings.Energy
.Should().BeApproximately(0.0, TOLERANCE);
readings.TimeStamp
.Should().Be(null);
}
public void Reset_should_notify_property_changes()
{
// Assign
const double V = 3.2, S = 2.0, R = 1500;
var readings = new ElectricReadings(R, S);
readings.AddSample(new DataSample(T1, V + 0.4));
readings.AddSample(new DataSample(T2, V + 0.5));
readings.MonitorEvents();
// Act
readings.Reset();
// Assert
readings.ShouldNotRaisePropertyChangeFor(m => m.Resistance);
readings.ShouldNotRaisePropertyChangeFor(m => m.VoltageScale);
readings.ShouldRaisePropertyChangeFor(m => m.TimeStamp);
readings.ShouldRaisePropertyChangeFor(m => m.Voltage);
readings.ShouldRaisePropertyChangeFor(m => m.Current);
readings.ShouldRaisePropertyChangeFor(m => m.Power);
readings.ShouldRaisePropertyChangeFor(m => m.Energy);
}
public void SetResistance_readings_adjustment_cross_verification()
{
// Assign
const double R1 = 1700,
R2 = 1875;
const double S = 2.3;
const double V1 = 3.5,
V2 = 3.6;
var expectedReadings = new ElectricReadings(R1, S);
expectedReadings.AddSample(new DataSample(T1, V1));
expectedReadings.AddSample(new DataSample(T2, V2));
var actualReadings = new ElectricReadings(R2, S);
actualReadings.AddSample(new DataSample(T1, V1));
actualReadings.AddSample(new DataSample(T2, V2));
// Act
actualReadings.SetResistance(R1, adjustValues: true);
// Assert
actualReadings.ShouldBeEquivalentTo(expectedReadings, options => options
.Using(new DoubleAssertionRule(TOLERANCE)));
}
public void SetResistance_without_adjustment_should_updated_only_Resistance()
{
// Assign
const double R = 1100, Rnew = 4500;
var expectedReadings = new ElectricReadings(R);
expectedReadings.AddSample(new DataSample(T1, 3.2));
expectedReadings.AddSample(new DataSample(T2, 3.1));
var testedReadings = new ElectricReadings(R);
testedReadings.AddSample(new DataSample(T1, 3.2));
testedReadings.AddSample(new DataSample(T2, 3.1));
testedReadings.MonitorEvents();
// Act
testedReadings.SetResistance(Rnew, adjustValues: false);
// Assert
testedReadings.ShouldBeEquivalentTo(expectedReadings, options => options
.Excluding(r => r.Resistance));
testedReadings.Resistance
.Should().Be(Rnew);
}
public void SetVoltageScale_readings_adjustment_cross_verification()
{
// Assign
const double R = 1730;
const double S1 = 2.0,
S2 = 10.0;
const double U1 = 220,
U2 = 224;
var electricReadings = new ElectricReadings(R, S1);
electricReadings.AddSample(new DataSample(T1, U1 / S1));
electricReadings.AddSample(new DataSample(T2, U2 / S1));
var actualReadings = new ElectricReadings(R, S2);
actualReadings.AddSample(new DataSample(T1, U1 / S1));
actualReadings.AddSample(new DataSample(T2, U2 / S1));
// Act
actualReadings.SetVoltageScale(S1, adjustValues: true);
// Assert
actualReadings.ShouldBeEquivalentTo(electricReadings, options => options
.Using(new DoubleAssertionRule(TOLERANCE)));
}
public void SetVoltageScale_should_notify_property_change()
{
// Assign
const double R = 4500, S = 2.1;
var readings = new ElectricReadings(R, S);
readings.MonitorEvents();
// Act
readings.SetVoltageScale(S * 1.1, adjustValues: false);
// Assert
readings.ShouldRaisePropertyChangeFor(m => m.VoltageScale);
}
public void SetVoltageScale_without_adjustment_should_update_only_VoltageScale()
{
// Assign
const double R = 1730;
const double S1 = 3.0,
S2 = 10.0;
const double V1 = 3.1,
V2 = 3.2;
var expectedReadings = new ElectricReadings(R, S1);
expectedReadings.AddSample(new DataSample(T1, V1));
expectedReadings.AddSample(new DataSample(T2, V2));
var actualReadings = new ElectricReadings(R, S1);
actualReadings.AddSample(new DataSample(T1, V1));
actualReadings.AddSample(new DataSample(T2, V2));
// Act
actualReadings.SetVoltageScale(S2, adjustValues: false);
// Assert
actualReadings.ShouldBeEquivalentTo(expectedReadings, options => options
.Excluding(r => r.VoltageScale));
actualReadings.VoltageScale
.Should().Be(S2);
}