public void InstructionWorksEndToEnd(SetUp setup, string input,
string expectedOutput)
{
var model = new ProgrammingModel();
var memory = new Memory();
setup(model, memory);
var repl = new Repl(model, memory);
if (!repl.TryRead(input))
Assert.Fail(string.Format("Unable to read assembly input: '{0}'", input));
if (!repl.Execute())
Assert.Fail(string.Format("Unable to execute input: '{0}'", input));
Assert.That(repl.PrintRegisters(), Is.StringContaining(expectedOutput));
}