public void TestSmartContext_DeleteEntity_DeleteShouldBeBackedUp()
{
using (SmartContext sCtx = new SmartContext())
{
User userToDelete = sCtx.GetSingle<User>();
int userToDeleteId = userToDelete.UserId;
sCtx.Delete(userToDelete);
sCtx.SaveChanges();
User deletedUsserFromOffline = this.offlineContext.Users.FirstOrDefault(usr => usr.UserId == userToDelete.UserId);
object deleteOperation = this.offlineContext.GetAll(DeleteOperationDefinition.DeleteOperationFullTypeName)
.Cast<object>()
.FirstOrDefault(o => o.FieldValue<int>(DeleteOperationDefinition.EntityToDeleteId) == userToDeleteId);
int deletedEntityId = deleteOperation.FieldValue<int>(DeleteOperationDefinition.EntityToDeleteId);
string deletedEntityType = deleteOperation.FieldValue<string>((DeleteOperationDefinition.EntityToDeleteType));
Assert.IsNull(deletedUsserFromOffline);
Assert.AreEqual(userToDeleteId, deletedEntityId);
Assert.AreEqual("Model.User", deletedEntityType);
}
}
public void TestAutoSwitchSmartContext_BackupDeletes_SwitchBackToOnlineMode_SyncDeletes_ObjectsShouldBeDeletedFromOnlineStorage()
{
using (SmartContext sCtx = new SmartContext())
{
int usersInOnlineCountBefore = this.onlineContext.Users.Count();
int usrToDeleteId = 1;
User usrToDelete = sCtx.GetSingle<User>(usr => usr.UserId == usrToDeleteId);
sCtx.Delete(usrToDelete);
this.LockDbTable("Users");
sCtx.SaveChanges();
this.ReleaseLock();
Thread.Sleep(20000);
User usrToDeleteFromOnline = this.onlineContext.Users.FirstOrDefault(usr => usr.UserId == usrToDeleteId);
int usersInOnlineCountAfter = this.onlineContext.Users.Count();
Assert.AreNotEqual(usersInOnlineCountBefore, usersInOnlineCountAfter);
Assert.AreEqual(usersInOnlineCountBefore - 1, usersInOnlineCountAfter);
Assert.IsNull(usrToDeleteFromOnline);
}
}
public void TestAutoSwitchSmartContext_SwitchOnDelete_ObjectShouldBeDeletedFromBackup()
{
using (SmartContext sCtx = new SmartContext())
{
User userToDelete = sCtx.GetSingle<User>();
int userToDeleteId = userToDelete.UserId;
sCtx.Delete(userToDelete);
//Simulate that the online storage is not available
this.LockDbTable("Users");
//Upon saving the chanegs the SmartContext will switch to the backup storage
//and delete the user from there,
//it will also save the delete operation
sCtx.SaveChanges();
User deletedUserFromBackup = sCtx.GetSingle<User>(usr => usr.UserId == userToDelete.UserId);
this.ReleaseLock();
User userFromOnline = this.onlineContext.Users.FirstOrDefault(usr => usr.UserId == userToDelete.UserId);
object deleteOperation = this.offlineContext.GetAll(DeleteOperationDefinition.DeleteOperationFullTypeName)
.Cast<object>()
.FirstOrDefault(o => o.FieldValue<int>(DeleteOperationDefinition.EntityToDeleteId) == userToDeleteId);
int deletedEntityId = deleteOperation.FieldValue<int>(DeleteOperationDefinition.EntityToDeleteId);
string deletedEntityType = deleteOperation.FieldValue<string>((DeleteOperationDefinition.EntityToDeleteType));
//Deleted from the backup storage
Assert.IsNull(deletedUserFromBackup);
//Still present in the online storage
Assert.IsNotNull(userFromOnline);
//verify that the delete operation has been backed up
Assert.AreEqual(userToDeleteId, deletedEntityId);
Assert.AreEqual("Model.User", deletedEntityType);
}
}