.NET GetJSON operation throws System.ArgumentNullException

Much like -
From NCBC-306: .NET GetJSON operation throws null reference exception Add support for null values persisted for a key via the CouchbaseClientExtensions.GetJson(…) method. This method will no longer thrown a NullReferenceException when the value store for a key is null and instead simply return null. - See more at: http://www.couchbase.com/communities/comment/1455#comment-1455

[Test]
+ public void Test_That_GetJson_Supports_Null_Values()
+

{ + var key = "A_NULL_THING"; + var result = Client.StoreJson(StoreMode.Set, key, null); + Assert.AreEqual(true, result); + + var nullResult = Client.GetJson(key); + Assert.AreEqual(null, nullResult); + }

I'm not sure this test works for all cases. Say I just started my application can called

var returnedString = Client.GetJson(key);

But there isn't anything in the system because I just started up, I'll get a 'System.ArgumentNullException' because:
public static T GetJson(this ICouchbaseClient client, string key) where T : class

{ var json = client.Get(key); return json == Null ? null : DeserializeObject(key, json); }

The value 'json' will actually equal null. Since in this test it won't equal the string "Null", it will attempt to call DeserializeObject(key, json), with a null value for 'json'.

see following test
[Test]
public void Test_That_GetJson_Supports_Empty_Values()

{ //ensure key and value are not stored in the system var nullResult = Client.GetJson("my key"); Assert.AreEqual(null, nullResult); //fails }

Expected behavior
Just like the standard Client.Get<string>(keyWithNothingInDatabase) returns null, I would expect Client.GetJson(keyWithNothingInDatabase) to also return null.