public override bool Equals(object obj)
{
const double acceptableDifference = 1e-6;
OfflineReadyItem other = obj as OfflineReadyItem;
if (other == null)
{
return(false);
}
if (this.Age != other.Age)
{
return(false);
}
if (!this.Date.ToUniversalTime().Equals(other.Date.ToUniversalTime()))
{
return(false);
}
if (this.Flag != other.Flag)
{
return(false);
}
if (this.Name != other.Name)
{
return(false);
}
if (Math.Abs(this.FloatingNumber - other.FloatingNumber) > acceptableDifference)
{
return(false);
}
return(true);
}
private async Task CreateSyncConflict(bool autoResolve)
{
await ClearStore();
bool resolveConflictsOnClient = autoResolve;
DateTime now = DateTime.UtcNow;
int seed = now.Year * 10000 + now.Month * 100 + now.Day;
Log("Using random seed: {0}", seed);
Random rndGen = new Random(seed);
var offlineReadyClient = CreateClient();
var localStore = new MobileServiceSQLiteStore(StoreFileName);
Log("Defined the table on the local store");
localStore.DefineTable <OfflineReadyItem>();
ConflictResolvingSyncHandler <OfflineReadyItem> .ConflictResolution conflictHandlingPolicy;
conflictHandlingPolicy = (client, server) =>
new OfflineReadyItem
{
Id = client.Id,
Age = Math.Max(client.Age, server.Age),
Date = client.Date > server.Date ? client.Date : server.Date,
Flag = client.Flag || server.Flag,
FloatingNumber = Math.Max(client.FloatingNumber, server.FloatingNumber),
Name = client.Name
};
if (resolveConflictsOnClient)
{
var handler = new ConflictResolvingSyncHandler <OfflineReadyItem>(this, offlineReadyClient, conflictHandlingPolicy);
await offlineReadyClient.SyncContext.InitializeAsync(localStore, handler);
}
else
{
await offlineReadyClient.SyncContext.InitializeAsync(localStore);
}
Log("Initialized the store and sync context");
var localTable = offlineReadyClient.GetSyncTable <OfflineReadyItem>();
var remoteTable = offlineReadyClient.GetTable <OfflineReadyItem>();
await localTable.PurgeAsync();
Log("Removed all items from the local table");
var item = new OfflineReadyItem(rndGen);
await remoteTable.InsertAsync(item);
Log("Inserted the item to the remote store:", item);
var pullQuery = "$filter=id eq '" + item.Id + "'";
await localTable.PullAsync(null, pullQuery);
Log("Changing the item on the server");
item.Age++;
await remoteTable.UpdateAsync(item);
Log("Updated the item: {0}", item);
var localItem = await localTable.LookupAsync(item.Id);
Log("Retrieved the item from the local table, now updating it");
localItem.Date = localItem.Date.AddDays(1);
await localTable.UpdateAsync(localItem);
Log("Updated the item on the local table");
Log("Now trying to pull changes from the server (will trigger a push)");
string errorMessage = string.Empty;
try
{
await localTable.PullAsync(null, pullQuery);
if (!autoResolve)
{
errorMessage = "Error, pull (push) should have caused a conflict, but none happened.";
}
else
{
var expectedMergedItem = conflictHandlingPolicy(localItem, item);
var localMergedItem = await localTable.LookupAsync(item.Id);
if (localMergedItem.Equals(expectedMergedItem))
{
Log("Item was merged correctly.");
}
else
{
errorMessage = string.Format("Error, item not merged correctly. Expected: {0}, Actual: {1}", expectedMergedItem, localMergedItem);
}
}
}
catch (MobileServicePushFailedException ex)
{
Log("Push exception: {0}", ex);
if (autoResolve)
{
errorMessage = "Error, push should have succeeded.";
}
else
{
Log("Expected exception was thrown.");
}
}
Log("Cleaning up");
await localTable.DeleteAsync(item);
Log("Local table cleaned up. Now sync'ing once more");
await offlineReadyClient.SyncContext.PushAsync();
Log("Done");
localStore.Dispose();
await ClearStore();
if (!String.IsNullOrEmpty(errorMessage))
{
Assert.Fail(errorMessage);
}
}
private async Task BasicOfflineTest()
{
await ClearStore();
DateTime now = DateTime.UtcNow;
int seed = now.Year * 10000 + now.Month * 100 + now.Day;
Log("Using random seed: {0}", seed);
Random rndGen = new Random(seed);
CountingHandler handler = new CountingHandler();
var requestsSentToServer = 0;
var offlineReadyClient = CreateClient(handler);
var localStore = new MobileServiceSQLiteStore(StoreFileName);
Log("Defined the table on the local store");
localStore.DefineTable <OfflineReadyItem>();
await offlineReadyClient.SyncContext.InitializeAsync(localStore);
Log("Initialized the store and sync context");
var localTable = offlineReadyClient.GetSyncTable <OfflineReadyItem>();
var remoteTable = offlineReadyClient.GetTable <OfflineReadyItem>();
var item = new OfflineReadyItem(rndGen);
try
{
await localTable.InsertAsync(item);
Log("Inserted the item to the local store:", item);
Log("Validating that the item is not in the server table");
try
{
requestsSentToServer++;
await remoteTable.LookupAsync(item.Id);
Assert.Fail("Error, item is present in the server");
}
catch (MobileServiceInvalidOperationException ex)
{
Log("Ok, item is not in the server: {0}", ex.Message);
}
Func <int, bool> validateRequestCount = expectedCount =>
{
Log("So far {0} requests sent to the server", handler.RequestCount);
if (handler.RequestCount != expectedCount)
{
Log("Error, expected {0} requests to have been sent to the server", expectedCount);
return(false);
}
else
{
return(true);
}
};
if (!validateRequestCount(requestsSentToServer))
{
Assert.Fail(string.Format("Error, expected {0} requests to have been sent to the server", requestsSentToServer));
}
Log("Pushing changes to the server");
await offlineReadyClient.SyncContext.PushAsync();
requestsSentToServer++;
if (!validateRequestCount(requestsSentToServer))
{
Assert.Fail(string.Format("Error, expected {0} requests to have been sent to the server", requestsSentToServer));
}
Log("Push done; now verifying that item is in the server");
var serverItem = await remoteTable.LookupAsync(item.Id);
requestsSentToServer++;
Log("Retrieved item from server: {0}", serverItem);
if (serverItem.Equals(item))
{
Log("Items are the same");
}
else
{
Assert.Fail(string.Format("Items are different. Local: {0}; remote: {1}", item, serverItem));
}
Log("Now updating the item locally");
item.Flag = !item.Flag;
item.Age++;
item.Date = new DateTime(now.Year, now.Month, now.Day, now.Hour, now.Minute, now.Second, now.Millisecond, DateTimeKind.Utc);
await localTable.UpdateAsync(item);
Log("Item has been updated");
var newItem = new OfflineReadyItem(rndGen);
Log("Adding a new item to the local table: {0}", newItem);
await localTable.InsertAsync(newItem);
if (!validateRequestCount(requestsSentToServer))
{
Assert.Fail(string.Format("Error, expected {0} requests to have been sent to the server", requestsSentToServer));
}
Log("Pushing the new changes to the server");
await offlineReadyClient.SyncContext.PushAsync();
requestsSentToServer += 2;
if (!validateRequestCount(requestsSentToServer))
{
Assert.Fail(string.Format("Error, expected {0} requests to have been sent to the server", requestsSentToServer));
}
Log("Push done. Verifying changes on the server");
serverItem = await remoteTable.LookupAsync(item.Id);
requestsSentToServer++;
if (serverItem.Equals(item))
{
Log("Updated items are the same");
}
else
{
Assert.Fail(string.Format("Items are different. Local: {0}; remote: {1}", item, serverItem));
}
serverItem = await remoteTable.LookupAsync(newItem.Id);
requestsSentToServer++;
if (serverItem.Equals(newItem))
{
Log("New inserted item is the same");
}
else
{
Assert.Fail(string.Format("Items are different. Local: {0}; remote: {1}", item, serverItem));
}
Log("Cleaning up");
await localTable.DeleteAsync(item);
await localTable.DeleteAsync(newItem);
Log("Local table cleaned up. Now sync'ing once more");
await offlineReadyClient.SyncContext.PushAsync();
requestsSentToServer += 2;
if (!validateRequestCount(requestsSentToServer))
{
Assert.Fail(string.Format("Error, expected {0} requests to have been sent to the server", requestsSentToServer));
}
Log("Done");
}
catch (MobileServicePushFailedException ex)
{
Log("Push Result status from MobileServicePushFailedException: " + ex.PushResult.Status);
throw;
}
finally
{
localStore.Dispose();
ClearStore().Wait();
}
}
