public void OnFrameCompletedWorksWithLowPulseAfterTheFirsttact()
{
// --- Arrange
var spectrum = new SpectrumBeepTestMachine();
var beeperDevice = new BeeperDevice();
beeperDevice.OnAttachedToVm(spectrum);
// --- Act
spectrum.SetCurrentFrameTact(100);
beeperDevice.ProcessEarBitValue(false, false);
spectrum.SetCurrentFrameTact(spectrum.FrameTacts);
beeperDevice.OnFrameCompleted();
// --- Assert
beeperDevice.FrameCount.ShouldBe(0);
beeperDevice.Pulses.Count.ShouldBe(2);
beeperDevice.LastEarBit.ShouldBeFalse();
beeperDevice.LastPulseTact.ShouldBe(100);
var pulse1 = beeperDevice.Pulses[0];
pulse1.EarBit.ShouldBeTrue();
pulse1.Lenght.ShouldBe(100);
var pulse2 = beeperDevice.Pulses[1];
pulse2.EarBit.ShouldBeFalse();
pulse2.Lenght.ShouldBe(spectrum.FrameTacts - 100);
}
public void OnNewFrameKeepsLastEarBitValue()
{
// --- Arrange
var spectrum = new SpectrumBeepTestMachine();
var beeperDevice = new BeeperDevice();
beeperDevice.OnAttachedToVm(spectrum);
// --- Act
spectrum.SetCurrentFrameTact(100);
beeperDevice.ProcessEarBitValue(false, false);
spectrum.SetCurrentFrameTact(spectrum.FrameTacts);
beeperDevice.OnFrameCompleted();
beeperDevice.OnNewFrame();
// --- Assert
beeperDevice.FrameCount.ShouldBe(1);
beeperDevice.Pulses.Count.ShouldBe(0);
beeperDevice.LastEarBit.ShouldBeFalse();
beeperDevice.LastPulseTact.ShouldBe(0);
}
public void ProcessEarBitWorksForFourPulses()
{
// --- Arrange
var spectrum = new SpectrumBeepTestMachine();
var beeperDevice = new BeeperDevice();
beeperDevice.OnAttachedToVm(spectrum);
// --- Act
spectrum.SetCurrentFrameTact(100);
beeperDevice.ProcessEarBitValue(false, false);
spectrum.SetCurrentFrameTact(140);
beeperDevice.ProcessEarBitValue(false, true);
spectrum.SetCurrentFrameTact(160);
beeperDevice.ProcessEarBitValue(false, true);
spectrum.SetCurrentFrameTact(190);
beeperDevice.ProcessEarBitValue(false, false);
// --- Assert
beeperDevice.Pulses.Count.ShouldBe(3);
beeperDevice.LastEarBit.ShouldBeFalse();
beeperDevice.LastPulseTact.ShouldBe(190);
var pulse1 = beeperDevice.Pulses[0];
pulse1.EarBit.ShouldBeTrue();
pulse1.Lenght.ShouldBe(100);
var pulse2 = beeperDevice.Pulses[1];
pulse2.EarBit.ShouldBeFalse();
pulse2.Lenght.ShouldBe(40);
var pulse3 = beeperDevice.Pulses[2];
pulse3.EarBit.ShouldBeTrue();
pulse3.Lenght.ShouldBe(50);
}
public void ProcessEarBitWorksWithLowPulseAtTact0()
{
// --- Arrange
var spectrum = new SpectrumBeepTestMachine();
var beeperDevice = new BeeperDevice();
beeperDevice.OnAttachedToVm(spectrum);
// --- Act
spectrum.SetCurrentFrameTact(0);
beeperDevice.ProcessEarBitValue(false, false);
// --- Assert
beeperDevice.Pulses.Count.ShouldBe(0);
beeperDevice.LastEarBit.ShouldBeFalse();
beeperDevice.LastPulseTact.ShouldBe(0);
}
public void ProcessEarBitWorksForTheFirstLowPulse()
{
// --- Arrange
var spectrum = new SpectrumBeepTestMachine();
var beeperDevice = new BeeperDevice();
beeperDevice.OnAttachedToVm(spectrum);
// --- Act
spectrum.SetCurrentFrameTact(100);
beeperDevice.ProcessEarBitValue(false, false);
// --- Assert
beeperDevice.Pulses.Count.ShouldBe(1);
beeperDevice.LastEarBit.ShouldBeFalse();
beeperDevice.LastPulseTact.ShouldBe(100);
var pulse = beeperDevice.Pulses[0];
pulse.EarBit.ShouldBeTrue();
pulse.Lenght.ShouldBe(100);
}
