public void GetNext_ShouldThrowWhenNoStatementsLeft()
{
// arrange
Tape tape = new Tape("+");
// act
_ = tape.GetNext(0);
// assert
Assert.Throws <IndexOutOfRangeException>(() => tape.GetNext(0));
}
public void SecondGetNext_ShouldReturnSecondStatement()
{
// arrange
Tape tape = new Tape("+-");
// act
_ = tape.GetNext(0);
var s = tape.GetNext(0);
// assert
Assert.Equal(Statement.Types.Decrement, s.Type);
}
public void GetNext_ReturnsFirstAfterLoopWhenValueIsZeroAtEnd()
{
// arrange
Tape tape = new Tape("[-].");
// act
var statement = tape.GetNext(1);
Assert.Equal(Statement.Types.Decrement, statement.Type);
statement = tape.GetNext(0);
Assert.Equal(Statement.Types.Write, statement.Type);
}
public void GetNext_ReturnsNextInsideWhileWhenValueIsOne()
{
// arrange
Tape tape = new Tape("[----].");
// act
var statement = tape.GetNext(1);
// assert
Assert.Equal(Statement.Types.Decrement, statement.Type);
}
public void GetNext_ReturnsNextAfterWhileWhenValueIsZero()
{
// arrange
Tape tape = new Tape("[----].");
// act
var statement = tape.GetNext(0);
// assert
Assert.Equal(Statement.Types.Write, statement.Type);
}
public void FirstGetNext_ShouldReturnFirstStatement()
{
// arrange
Tape tape = new Tape(">");
// act
var s = tape.GetNext(0);
// assert
Assert.Equal(Statement.Types.IncreasePointer, s.Type);
}
/// <summary>
/// Convertiert das Turing Band
/// </summary>
/// <returns>konvertierte Band</returns>
private string ConvertTape()
{
string strBand = "(";
Tape tp = m_TM.GetTape;
while (tp != null)
{
string symbl = tp.GetSign();
string NewSymbl = ConvertSymbol(symbl);
strBand += NewSymbl;
tp = tp.GetNext();
}
return(strBand + ")");
}