public void EvaluateTypeConstant()
{
Machine machine = new Machine();
DoubleColonExpression expression = new DoubleColonExpression(new ConstantExpression(typeof(TokenType)), "Name");
var result = expression.Evaluate(machine.RootContext);
Assert.IsNotNull(result);
Assert.AreEqual(TokenType.Name, result);
}
public void EvaluateConstant()
{
Machine machine = new Machine();
machine.ExecuteText("module MyModule; FOO = 3; end");
DoubleColonExpression expression = new DoubleColonExpression(new NameExpression("MyModule"), "FOO");
var result = expression.Evaluate(machine.RootContext);
Assert.IsNotNull(result);
Assert.AreEqual(3, result);
}
public void EvaluateUndefinedConstant()
{
Machine machine = new Machine();
machine.ExecuteText("module MyModule;end");
DoubleColonExpression expression = new DoubleColonExpression(new NameExpression("MyModule"), "FOO");
try
{
expression.Evaluate(machine.RootContext);
Assert.Fail();
}
catch (Exception ex)
{
Assert.IsInstanceOfType(ex, typeof(NameError));
Assert.AreEqual("unitialized constant MyModule::FOO", ex.Message);
}
}
