public void NoBusRead(byte expectedValue, SystemRegister registerId, ControlLineId lineId)
{
var clock = new Mock <IClock>();
clock.Setup(x => x.AddConnectedComponent(It.IsAny <IClockConnectedComponent>()));
var bus = new Mock <IBus>();
bus.SetupGet(x => x.Value).Returns(expectedValue);
var controlUnit = new Mock <IControlUnit>();
ControlLine busInputLine = new ControlLine(lineId);
controlUnit.Setup(x => x.GetControlLine(lineId)).Returns(busInputLine);
Register reg = new Register(registerId, clock.Object, bus.Object, controlUnit.Object);
busInputLine.State = false;
reg.OnRisingEdge();
// A register should not read a value when it's controlline is low
Assert.Equal(0, reg.Value);
}
public void ReadValueFromBus(byte expectedValue, SystemRegister registerId, ControlLineId lineId)
{
var clock = new Mock <IClock>();
clock.Setup(x => x.AddConnectedComponent(It.IsAny <IClockConnectedComponent>()));
var bus = new Mock <IBus>();
bus.SetupGet(x => x.Value).Returns(expectedValue);
var controlUnit = new Mock <IControlUnit>();
ControlLine busInputLine = new ControlLine(lineId);
controlUnit.Setup(x => x.GetControlLine(lineId)).Returns(busInputLine);
Register reg = new Register(registerId, clock.Object, bus.Object, controlUnit.Object);
busInputLine.State = true;
reg.OnRisingEdge();
// Register has it's input line high so should read the value currently on the bus
Assert.Equal(expectedValue, reg.Value);
}
public ControlLine(ControlLineId id)
{
Id = id;
State = false;
}
public ControlLine GetControlLine(ControlLineId lineId)
{
return(controlLines[lineId]);
}
