public void TupleKeyInfoComparerNullThrowsException()
{
var keyInfo = TupleKeyInfo.Create((Member m) => Tuple.Create(m.GroupId, m.GroupId2));
var comparer = keyInfo.KeyComparer;
comparer.Compare(null, null);
}
public void TupleKeyInfoIsEmpty()
{
var keyInfo = TupleKeyInfo.Create((Member m) => Tuple.Create(m.GroupId, m.GroupId2));
Assert.IsFalse(keyInfo.IsEmptyKey(Tuple.Create((int?)1, 1)));
Assert.IsTrue(keyInfo.IsEmptyKey(Tuple.Create((int?)null, 1)));
}
public void TupleKeyInfoComparerDescending()
{
var keyInfo = TupleKeyInfo.Create((Member m) => Tuple.Create(m.GroupId, m.GroupId2), SortOrder.Descending, SortOrder.Descending);
var comparer = keyInfo.KeyComparer;
Assert.AreEqual(0, comparer.Compare(
Tuple.Create((int?)null, 1),
Tuple.Create((int?)null, 1)));
Assert.AreEqual(1, comparer.Compare(
Tuple.Create((int?)null, 1),
Tuple.Create((int?)1, 1)));
Assert.AreEqual(-1, comparer.Compare(
Tuple.Create((int?)1, 1),
Tuple.Create((int?)null, 1)));
Assert.AreEqual(0, comparer.Compare(
Tuple.Create((int?)1, 1),
Tuple.Create((int?)1, 1)));
Assert.AreEqual(1, comparer.Compare(
Tuple.Create((int?)1, 1),
Tuple.Create((int?)2, 1)));
Assert.AreEqual(-1, comparer.Compare(
Tuple.Create((int?)2, 1),
Tuple.Create((int?)1, 1)));
Assert.AreEqual(1, comparer.Compare(
Tuple.Create((int?)1, 1),
Tuple.Create((int?)1, 2)));
Assert.AreEqual(-1, comparer.Compare(
Tuple.Create((int?)1, 2),
Tuple.Create((int?)1, 1)));
}
public bool TryCreateKeyInfo <TEntity, TKey>(
Expression <Func <TEntity, TKey> > keySelector,
out IKeyInfo <TEntity, TKey> result) where TEntity : class
{
if (!ReflectionHelper.IsTuple(typeof(TKey)))
{
result = null;
return(false);
}
IKeyInfoHelper helper = TupleKeyInfo <TEntity, TKey> .KeyInfoHelper;
MemberInfo[] members;
if (!helper.TryParseKeySelectorExpression(keySelector.Body, true, out members))
{
result = null;
return(false);
}
result = new TupleKeyInfo <TEntity, TKey>(members);
return(true);
}
public void TupleKeyInfoIsEmptyThatCannot()
{
var keyInfo = TupleKeyInfo.Create((Member m) => Tuple.Create(m.GroupId2));
Assert.IsFalse(keyInfo.IsEmptyKey(Tuple.Create(1)));
}
public void TupleKeyInfoCreation2()
{
var keyInfo = TupleKeyInfo.Create((Member m) => new Tuple <int?, int>(m.GroupId, m.GroupId2));
Assert.AreEqual(2, keyInfo.EntityKeyMembers.Length);
}
