public void PrimitiveKeyInfoIsEmpty()
{
var keyInfo = PrimitiveKeyInfo.Create((Member g) => g.GroupId);
Assert.IsTrue(keyInfo.IsEmptyKey(null));
Assert.IsFalse(keyInfo.IsEmptyKey(1));
}
public void PrimitiveKeyInfoComparer()
{
var keyInfo = PrimitiveKeyInfo.Create((Member g) => g.GroupId);
var comparer = keyInfo.KeyComparer;
Assert.AreEqual(0, comparer.Compare(null, null));
Assert.AreEqual(-1, comparer.Compare(null, 1));
Assert.AreEqual(1, comparer.Compare(1, null));
Assert.AreEqual(0, comparer.Compare(1, 1));
Assert.AreEqual(-1, comparer.Compare(0, 1));
Assert.AreEqual(1, comparer.Compare(1, 0));
}
public bool TryCreateKeyInfo <TEntity, TKey>(
Expression <Func <TEntity, TKey> > keySelector,
out IKeyInfo <TEntity, TKey> result) where TEntity : class
{
if (!ValidateType(typeof(TKey)))
{
result = null;
return(false);
}
IKeyInfoHelper helper = PrimitiveKeyInfo <TEntity, TKey> .KeyInfoHelper;
MemberInfo[] members;
if (!helper.TryParseKeySelectorExpression(keySelector.Body, true, out members))
{
result = null;
return(false);
}
result = new PrimitiveKeyInfo <TEntity, TKey>(members[0]);
return(true);
}
public void PrimitiveKeyInfoCreation()
{
var keyInfo = PrimitiveKeyInfo.Create((Group g) => g.Id);
Assert.AreEqual(1, keyInfo.EntityKeyMembers.Length);
}
