private void SaveChanges_bubbles_presave_exception_implementation(Func<DbContext, int> saveChanges)
{
EnsureDatabaseInitialized(() => new AdvancedPatternsMasterContext());
using (new TransactionScope())
{
using (var context = new AdvancedPatternsMasterContext())
{
var emp = new CurrentEmployee { EmployeeId = 4 };
var ord = new WorkOrder { WorkOrderId = 2, EmployeeId = 4 };
context.Employees.Attach(emp);
context.WorkOrders.Attach(ord);
// Create a conceptual null
GetObjectContext(context).ObjectStateManager.ChangeObjectState(emp, EntityState.Deleted);
Assert.Throws<InvalidOperationException>(() => context.SaveChanges()).ValidateMessage(
"ObjectContext_CommitWithConceptualNull");
}
}
}
