public void GetEnumeratorTest()
{
var list = new ExpressionList<ConstantTypes.Integer>();
list.Add(new ConstantTypes.Integer(0));
var one = new ConstantTypes.Integer(1);
list.Add(one);
var enumerator = list.GetEnumerator();
Assert.IsNotNull(enumerator);
Assert.IsTrue(enumerator.MoveNext());
Assert.IsNotNull(enumerator.Current);
Assert.IsTrue(enumerator.MoveNext());
Assert.IsNotNull(enumerator.Current);
Assert.IsFalse(enumerator.MoveNext());
}
