[#6292] Add unit tests to cover AzureBlobTranscriptStore

libraries/Microsoft.Bot.Builder.Azure/AssemblyInfo.cs

@@ -0,0 +1,11 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using System.Runtime.CompilerServices;
+
+// Allows us to access some internal methods from the Microsoft.Bot.Builder.Azure.Tests unit tests so we don't have to use reflection and we get compile checks.
+#if SIGNASSEMBLY
+[assembly: InternalsVisibleTo("Microsoft.Bot.Builder.Azure.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100b5fc90e7027f67871e773a8fde8938c81dd402ba65b9201d60593e96c492651e889cc13f1415ebb53fac1131ae0bd333c5ee6021672d9718ea31a8aebd0da0072f25d87dba6fc90ffd598ed4da35e44c398c454307e8e33b8426143daec9f596836f97c8f74750e5975c64e2189f45def46b2a2b1247adc3652bf5c308055da9")]
+#else
+[assembly: InternalsVisibleTo("Microsoft.Bot.Builder.Azure.Tests")]
+#endif

libraries/Microsoft.Bot.Builder.Azure/AzureBlobTranscriptStore.cs

@@ -31,6 +31,8 @@ public class AzureBlobTranscriptStore : ITranscriptStore
 
         private static HashSet<string> _checkedContainers = new HashSet<string>();
 
+        private readonly CloudBlobClient _blobClient;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="AzureBlobTranscriptStore"/> class.
         /// Creates an instance of AzureBlobTranscriptStore.
@@ -63,7 +65,7 @@ public AzureBlobTranscriptStore(CloudStorageAccount storageAccount, string conta
                 () =>
             {
                 containerName = containerName.ToLowerInvariant();
-                var blobClient = storageAccount.CreateCloudBlobClient();
+                var blobClient = _blobClient ?? storageAccount.CreateCloudBlobClient();
                 NameValidator.ValidateContainerName(containerName);
                 var container = blobClient.GetContainerReference(containerName);
                 if (!_checkedContainers.Contains(containerName))
@@ -76,6 +78,19 @@ public AzureBlobTranscriptStore(CloudStorageAccount storageAccount, string conta
             }, isThreadSafe: true);
         }
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AzureBlobTranscriptStore"/> class.
+        /// Creates an instance of AzureBlobTranscriptStore.
+        /// </summary>
+        /// <param name="storageAccount">.</param>
+        /// <param name="containerName">Name of the container where transcript blobs will be stored.</param>
+        /// <param name="blobClient">Custom implementation of CloudBlobClient.</param>
+        internal AzureBlobTranscriptStore(CloudStorageAccount storageAccount, string containerName, CloudBlobClient blobClient)
+            : this(storageAccount, containerName)
+        {
+            _blobClient = blobClient;
+        }
+
         private Lazy<CloudBlobContainer> Container { get; set; }
 
         /// <summary>