public void SmokeTest()
{
IInterpreter<Byte> interpreter = new ByteInterpreter();
try
{
interpreter.Execute(Instruction.ReadByte);
Assert.Fail("Execute ReadByte should fail if no input event handler is bound!");
}
catch (NoInputSourceAvailableException)
{
// This is expected
}
catch (Exception)
{
Assert.Fail("Execute threw an unexpected exception!");
}
List<Byte> output = new List<Byte>();
interpreter.OutputAvailable += (o) => output.Add(o);
const int RUNS = 20;
for (int i = 0; i < RUNS; i++)
{
interpreter.Execute(Instruction.IncrementValue);
interpreter.Execute(Instruction.IncrementPointer);
}
for (int i = 0; i < RUNS; i++)
{
interpreter.Execute(Instruction.DecrementPointer);
}
interpreter.Execute(Instruction.BeginLoop);
interpreter.Execute(Instruction.PrintByte);
interpreter.Execute(Instruction.IncrementPointer);
interpreter.Execute(Instruction.EndLoop);
Assert.AreEqual(RUNS, output.Count);
for (int i = 0; i < output.Count; i++)
{
Assert.AreEqual(1, output[i]);
}
}
public void StackOverflow()
{
try
{
IInterpreter interpreter = new ByteInterpreter();
interpreter.Execute(Instruction.IncrementValue);
interpreter.Execute(Instruction.BeginLoop);
interpreter.Execute(Instruction.EndLoop);
Assert.Fail("This should cause a stack overflow.");
}
catch (StackOverflowException)
{
// expected
}
catch
{
Assert.Fail("This should cause _nothing_ but a stack overflow.");
}
}