public void TestCursor()
{
Cache().Put(1, new QueryPerson("Ivanov", 30));
Cache().Put(1, new QueryPerson("Petrov", 40));
Cache().Put(1, new QueryPerson("Sidorov", 50));
SqlQuery qry = new SqlQuery(typeof(QueryPerson), "age >= 20");
// 1. Test GetAll().
using (IQueryCursor <ICacheEntry <int, QueryPerson> > cursor = Cache().Query(qry))
{
cursor.GetAll();
Assert.Throws <InvalidOperationException>(() => { cursor.GetAll(); });
Assert.Throws <InvalidOperationException>(() => { cursor.GetEnumerator(); });
}
// 2. Test GetEnumerator.
using (IQueryCursor <ICacheEntry <int, QueryPerson> > cursor = Cache().Query(qry))
{
cursor.GetEnumerator();
Assert.Throws <InvalidOperationException>(() => { cursor.GetAll(); });
Assert.Throws <InvalidOperationException>(() => { cursor.GetEnumerator(); });
}
}
public void TestEnumerator()
{
#pragma warning disable 618
Cache().Put(1, new QueryPerson("Ivanov", 30));
Cache().Put(2, new QueryPerson("Petrov", 40));
Cache().Put(3, new QueryPerson("Sidorov", 50));
Cache().Put(4, new QueryPerson("Unknown", 60));
// 1. Empty result set.
using (IQueryCursor <ICacheEntry <int, QueryPerson> > cursor =
Cache().Query(new SqlQuery(typeof(QueryPerson), "age = 100")))
{
IEnumerator <ICacheEntry <int, QueryPerson> > e = cursor.GetEnumerator();
Assert.Throws <InvalidOperationException>(() =>
{ ICacheEntry <int, QueryPerson> entry = e.Current; });
Assert.IsFalse(e.MoveNext());
Assert.Throws <InvalidOperationException>(() =>
{ ICacheEntry <int, QueryPerson> entry = e.Current; });
Assert.Throws <NotSupportedException>(() => e.Reset());
e.Dispose();
}
SqlQuery qry = new SqlQuery(typeof(QueryPerson), "age < 60");
Assert.AreEqual(QueryBase.DefaultPageSize, qry.PageSize);
// 2. Page size is bigger than result set.
qry.PageSize = 4;
CheckEnumeratorQuery(qry);
// 3. Page size equal to result set.
qry.PageSize = 3;
CheckEnumeratorQuery(qry);
// 4. Page size if less than result set.
qry.PageSize = 2;
CheckEnumeratorQuery(qry);
#pragma warning restore 618
}
