public void ParseNewVariableDefinitionAndInitialization()
{
ICommand command = ParseCommand("var x = 1;");
Assert.IsNotNull(command);
Assert.IsInstanceOfType(command, typeof(CompositeCommand));
CompositeCommand composite = (CompositeCommand)command;
Assert.AreEqual(2, composite.CommandCount);
Assert.IsInstanceOfType(composite.Commands.First(), typeof(VarCommand));
VarCommand varcmd = (VarCommand)composite.Commands.First();
Assert.AreEqual("x", varcmd.Name);
Assert.IsInstanceOfType(composite.Commands.ElementAt(1), typeof(SetVariableCommand));
SetVariableCommand setcmd = (SetVariableCommand)composite.Commands.ElementAt(1);
Assert.IsInstanceOfType(setcmd.Expression, typeof(ConstantExpression));
ConstantExpression consexpr = (ConstantExpression)setcmd.Expression;
Assert.AreEqual(1, consexpr.Value);
}