public void TeletypeWithPositionForwardsReads()
{
_mockTeletype = new Mock <ITeletype>();
_mockTeletype.Setup(mt => mt.Width).Returns(80);
_sut = new TeletypeWithPosition(_mockTeletype.Object);
_mockTeletype.Setup(mt => mt.Read()).Returns("RUN");
_sut.Write(">");
Assert.AreNotEqual(1, _sut.Position());
var result = _sut.Read();
Assert.AreEqual("RUN", result);
Assert.AreEqual(1, _sut.Position());
}
/// <summary>
/// Executes the Pos function.
/// </summary>
/// <param name="parameters">Parameters to the function</param>
/// <returns>Current horizontal position</returns>
public Accumulator Execute(IList <Accumulator> parameters)
{
if (parameters.Count != 1)
{
throw new Exceptions.SyntaxErrorException();
}
return(new Accumulator((double)_teletypeWithPosition.Position()));
}
public void TeletypeWithPositionForwardsWrites()
{
_mockTeletype = new Mock <ITeletype>();
_mockTeletype.Setup(mt => mt.Width).Returns(80);
_sut = new TeletypeWithPosition(_mockTeletype.Object);
_sut.Write("HELLO");
_mockTeletype.Verify(mt => mt.Write("HELLO"), Times.Once);
Assert.AreEqual(6, _sut.Position());
}
public void TeletypeWithPositionWritesEnvironmentNewLine()
{
_mockTeletype = new Mock <ITeletype>();
_mockTeletype.Setup(mt => mt.Width).Returns(80);
_sut = new TeletypeWithPosition(_mockTeletype.Object);
_sut.NewLine();
_mockTeletype.Verify(mt => mt.Write(Environment.NewLine), Times.Once);
Assert.AreEqual(1, _sut.Position());
}
public void TeletypeWithPositionCommasInCorrectPlace(
int beforeSpaceCount,
string output,
int expectedBefore,
int expectedAfter)
{
_mockTeletype = new Mock <ITeletype>();
_mockTeletype.Setup(mt => mt.Width).Returns(80);
_sut = new TeletypeWithPosition(_mockTeletype.Object);
_sut.Space((short)beforeSpaceCount);
var actualBefore = _sut.Position();
_sut.Write(output);
_sut.NextComma();
var actualAfter = _sut.Position();
Assert.AreEqual(expectedBefore, actualBefore);
Assert.AreEqual(expectedAfter, actualAfter);
}