public void NestedTransactionsUniqueKey()
{
using (SakilaDb context = new SakilaDb())
{
var store = new store
{
manager_staff_id = 1
};
context.stores.Add(store);
for (int i = 0; i < 10; i++)
{
Assert.Throws <DbUpdateException>(() => context.SaveChanges());
}
}
}
