public void DefDefinesFunctionAndDoesntEatColon()
{
var tokens = new List <IToken>
{
new Token("FN", TokenClass.Statement, TokenType.Fn),
new Token("NAME"),
new Token("(", TokenClass.Seperator, TokenType.OpenBracket),
new Token("A"),
new Token(")", TokenClass.Seperator, TokenType.CloseBracket),
new Token("=", TokenClass.Seperator, TokenType.Equal),
new Token("A"),
new Token("*", TokenClass.Seperator, TokenType.Multiply),
new Token("A"),
new Token(":", TokenClass.Seperator, TokenType.Colon)
};
_runEnvironment = new RunEnvironment();
_variableRepository = new VariableRepository();
_expressionEvaluator = new ExpressionEvaluator(_variableRepository, _runEnvironment);
var programLine = new ProgramLine(10, tokens);
_runEnvironment.CurrentLine = programLine;
var sut = new Def(_runEnvironment, _expressionEvaluator);
sut.Execute();
Assert.AreEqual(TokenType.Colon, _runEnvironment.CurrentLine.NextToken().Seperator);
var definition = _runEnvironment.DefinedFunctions["NAME"];
Assert.AreEqual("NAME", definition.FunctionName);
Assert.AreEqual("A", definition.VariableName);
Assert.AreEqual(6, definition.LineToken);
Assert.AreEqual(programLine, definition.Line);
}