[BUG] Add support for China East 3 and China North 3

Library name and version

Azure.Core 1.29.0

Describe the bug

Please support China East 3 and China North 3 in the AzureLocation.cs file. An error is thrown when we attempt to get list of accounts in China 3.

Expected behavior

Error should not be thrown. A list of accounts should be returned.

Actual behavior

The following error is thrown:

System.ArgumentNullException: Value cannot be null. Parameter name: location

Reproduction Steps

A subscription with storage accounts in China East 3 and China North 3.

var tokenCredentials = "<token Credentials object>";
var subscriptionId = "<subscription id string>";
var cancellationToken = "<cancellation token object>";

var client = new ArmClient(
                tokenCredentials,
                string.Empty,
                new ArmClientOptions()
                {
                    Environment = ArmEnvironment.AzureChina
                });

var sub = client.GetSubscriptionResource(SubscriptionResource.CreateResourceIdentifier(subscriptionId));
var accountEnumerator = sub.GetStorageAccountsAsync(cancellationToken).GetAsyncEnumerator(cancellationToken);
while (await accountEnumerator.MoveNextAsync().ConfigureAwait(false))
{
           var account = accountEnumerator.Current;
           var displayName = account.Data.Location.DisplayName;
           var location = account.Data.Location.Name;
}

Environment

No response

[christothes]

@christothes It’s not possible to reproduce locally because China is a sovereign geo. Storage account in China North 3 or China East 3 cannot be created. We also don’t have a test subscription in China.

I have the same dilemma 😄

[nimitpatel-ms]

That is the name of our service. ARMProvider is the class in our service that runs the code.