[Internal] Pipelines: Fixes Multi-Region CI pipeline to include env variable

Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/ClientTests.cs

@@ -924,6 +924,19 @@ public void PooledConnectionLifetimeTest()
             Type clientMessageHandlerType = cosmosClient.ClientContext.DocumentClient.httpClient.HttpMessageHandler.GetType();
             Assert.AreEqual(socketHandlerType, clientMessageHandlerType);
         }
+
+        [TestMethod]
+        [TestCategory("MultiRegion")]
+        public async Task MultiRegionAccountTest()
+        {
+            string connectionString = TestCommon.GetMultiRegionConnectionString();
+            Assert.IsNotNull(connectionString);
+            Assert.Fail(connectionString[..10]);
+            using CosmosClient cosmosClient = new CosmosClient(connectionString);
+            Assert.IsNotNull(cosmosClient);
+            AccountProperties properties = await cosmosClient.ReadAccountAsync();
+            Assert.IsNotNull(properties);
+        }
 
         public static IReadOnlyList<string> GetActiveConnections()
         {

Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/Utils/TestCommon.cs

@@ -73,6 +73,12 @@ internal static (string endpoint, string authKey) GetAccountInfo()
             return (endpoint, authKey);
         }
 
+        internal static string GetMultiRegionConnectionString()
+        {
+            string connectionString = (string)Environment.GetEnvironmentVariable("COSMOSDB_MULTI_REGION");
+            return connectionString;
+        }
+
         internal static CosmosClientBuilder GetDefaultConfiguration(
             bool useCustomSeralizer = true,
             bool validatePartitionKeyRangeCalls = false,

templates/build-test.yml

@@ -236,3 +236,5 @@ jobs:
       nugetConfigPath: NuGet.config
       publishTestResults: true
       testRunTitle: Microsoft.Azure.Cosmos.EmulatorTests
+    env: 
+      COSMOSDB_MULTI_REGION: $(COSMOS_DB_MULTI_REGION) # Real Account Connection String used for multi-region tests while running as part of ci pipline