public void Accepts_parameter_mode_immediate(string program, string expected)
{
var LessThanProgram = new LessThanProgram(new IntCodeValidator());
var output = LessThanProgram.Process(program);
Assert.That(output, Is.EqualTo(expected));
}
public void Should_validate_op_code_7(string program)
{
var jumpIfTrueProgram = new LessThanProgram(new IntCodeValidator());
var ex = Assert.Throws <InvalidOpCodeException>(() => jumpIfTrueProgram.Process(program));
Assert.That(ex.Message, Does.Contain("Invalid input: op code (first integer)"));
}
public void Stores_one_in_pointer_position_when_parameter_2_less_than_parameter_1(string program, string expected)
{
var LessThanProgram = new LessThanProgram(new IntCodeValidator());
Assert.That(LessThanProgram.Process(program), Is.EqualTo(expected), "Program should store 0");
Assert.That(LessThanProgram.InstructionLength, Is.EqualTo(4));
}
public void Supports_start_index()
{
var program = "3,9,7,9,10,9,4,9,99,-1,8";
var expected = "3,9,7,9,10,9,4,9,99,1,8";
var LessThanProgram = new LessThanProgram(new IntCodeValidator());
Assert.That(LessThanProgram.Process(program, 2), Is.EqualTo(expected), "Program should store 1");
}
public void Should_validate_input_is_a_valid_program()
{
var validatorSpy = A.Fake <IIntCodeValidator>();
var jumpIfTrue = new LessThanProgram(validatorSpy);
var program = "a,0,99,0";
A.CallTo(() => validatorSpy.SplitString(program)).Returns(new IntCodeValidator().SplitString(program));
Assert.Throws <Exception>(() => jumpIfTrue.Process(program));
A.CallTo(() => validatorSpy.Validate(program)).MustHaveHappened();
}
