public void EvaluatorGetLine()
{
var tokens = new List <IToken>
{
new Token("2000")
};
ProgramLine programLine = new ProgramLine(30, tokens);
var result = programLine.GetLineNumber();
Assert.AreEqual(2000, result);
}
public void EvaluatorGetLineThrowsExceptionOnBadLineNumber()
{
var tokens = new List <IToken>
{
new Token("20X00")
};
ProgramLine programLine = new ProgramLine(30, tokens);
var result = programLine.GetLineNumber();
Assert.IsNull(result);
Assert.AreEqual("20X00", programLine.NextToken().Text);
}
public void EvaluatorGetLineReturnsNullAndTokenIsNotEaten()
{
var tokens = new List <IToken>
{
new Token("DATA", TokenClass.Statement, TokenType.Data)
};
ProgramLine programLine = new ProgramLine(30, tokens);
var result = programLine.GetLineNumber();
Assert.AreEqual(null, result);
Assert.AreEqual("DATA", programLine.NextToken().Text);
}