public void ParseUnaryTuple()
{
Parser parser = new Parser("{1}.");
IExpression expression = parser.ParseExpression();
Assert.IsNotNull(expression);
Assert.IsInstanceOfType(expression, typeof(TupleExpression));
TupleExpression tupleexpression = (TupleExpression)expression;
Assert.IsNotNull(tupleexpression.Expressions);
Assert.AreEqual(1, tupleexpression.Expressions.Count);
Assert.IsNull(parser.ParseExpression());
}