public void Evalate_WhenLineWithNumbered_AddsItToLines()
{
var parser = MakeParser();
var rte = MakeRunTimeEnvironment();
var repl = new ReadEvaluatePrintLoop(rte, parser);
var line = new Line("10", MakeStatement());
var result = repl.Evaluate(line);
Assert.IsTrue(rte.Lines.Contains(line));
}
public void Evaluate_WhenLineWithoutNumber_RunsStatementImmediately()
{
var parser = MakeParser();
var inputOutput = MakeInputOutput();
var rte = MakeRunTimeEnvironment(inputOutput);
var repl = new ReadEvaluatePrintLoop(rte, parser);
var line = new Line(MakeStatement(() => inputOutput.Write("Windows")));
var result = repl.Evaluate(line);
Assert.AreEqual("Windows", inputOutput.OutputStrings[0]);
}
public void Evaluate_WithResultedStatement_ReturnsResult()
{
var parser = MakeParser();
var inputOutput = MakeInputOutput();
var rte = MakeRunTimeEnvironment(inputOutput);
var repl = new ReadEvaluatePrintLoop(rte, parser);
var statement = MakeStatement(new EvaluateResult("message"));
var result = repl.Evaluate(statement);
Assert.AreEqual("message", result.Message);
}
public void Evaluate_WithExceptedStatement_ThrowsRunTimeException()
{
var parser = MakeParser();
var inputOutput = MakeInputOutput();
var rte = MakeRunTimeEnvironment(inputOutput);
var repl = new ReadEvaluatePrintLoop(rte, parser);
var statement = MakeStatement(() => { throw new Exception(); });
repl.Evaluate(statement);
var condition = repl.DoEvaluateImmediately(null);
}