public IEnumerable <int> Run()
{
var buffer = new Queue <int>();
var input = Input.Concat(LoopBuffer());
foreach (int i in Sequence)
{
var test = new IntComp(
program: Program.ToArray(), // a copy
input: input.Prepend(i)
);
input = test.Run(); // output is the next input
}
return(CopyIntoBuffer());
IEnumerable <int> CopyIntoBuffer()
{
foreach (var x in input)
{
buffer.Enqueue(x);
yield return(x);
}
}
IEnumerable <int> LoopBuffer()
{
while (buffer.Count > 0)
{
yield return(buffer.Dequeue());
}
}
}
public void Day5_PartII_Samples(int[] program, int[] input, int[] expected)
{
var interpreter = new IntComp(program, input);
var actual = interpreter.Run();
Assert.Equal(expected, actual);
}
public void Day5_Indirect_Samples(int[] initial, int[] final)
{
var interpreter = new IntComp(initial, Enumerable.Empty <int>());
_ = interpreter.Run().ToList();
Assert.Equal(final, initial);
}
public void Day5_IO_Write_Samples()
{
var program = new[] { 4, 2, 99 };
var interpreter = new IntComp(program, Enumerable.Empty <int>());
var output = interpreter.Run();
Assert.Equal(new[] { 99 }, output);
}
public void Day5_IO_Read_Samples()
{
var program = new[] { 3, 1, 99 };
var interpreter = new IntComp(program, new[] { 42 });
_ = interpreter.Run().ToList();
Assert.Equal(new[] { 3, 42, 99 }, program);
}