diff --git a/src/generator/AutoRest.Python.Azure.Tests/AcceptanceTests.cs b/src/generator/AutoRest.Python.Azure.Tests/AcceptanceTests.cs
index 9b0abd7b45..3ba4b752aa 100644
--- a/src/generator/AutoRest.Python.Azure.Tests/AcceptanceTests.cs
+++ b/src/generator/AutoRest.Python.Azure.Tests/AcceptanceTests.cs
@@ -24,7 +24,10 @@ private static string SwaggerPath(string file)
         public static void SampleTestForGeneratingPython()
         {
             SwaggerSpecHelper.RunTests(
-                SwaggerPath("storage.json"), ExpectedPath("StorageManagementClient"),plugin:"Azure.Python");
+                SwaggerPath("storage.json"),
+                ExpectedPath("StorageManagementClient"),
+                plugin:"Azure.Python",
+                nameSpace: "fixtures.acceptancetestsstoragemanagementclient");
         }
     }
 }
diff --git a/src/modeler/AutoRest.Swagger.Tests/SwaggerSpecHelper.cs b/src/modeler/AutoRest.Swagger.Tests/SwaggerSpecHelper.cs
index 4f89003818..8df44bdf71 100644
--- a/src/modeler/AutoRest.Swagger.Tests/SwaggerSpecHelper.cs
+++ b/src/modeler/AutoRest.Swagger.Tests/SwaggerSpecHelper.cs
@@ -16,7 +16,7 @@ namespace AutoRest.Swagger.Tests
 
     public static class SwaggerSpecHelper
     {
-        public static void RunTests(string specFile, string resultFolder, string modeler = "Swagger", string plugin = "CSharp")
+        public static void RunTests(string specFile, string resultFolder, string modeler = "Swagger", string plugin = "CSharp", string nameSpace = null)
         {
             using (NewContext)
             {
@@ -27,7 +27,8 @@ public static void RunTests(string specFile, string resultFolder, string modeler
                         Header = "MICROSOFT_MIT_NO_VERSION",
                         Modeler = modeler,
                         PayloadFlatteningThreshold = 1,
-                        CodeGenerator =  plugin
+                        CodeGenerator =  plugin,
+                        Namespace = nameSpace
                     };
 
                 RunTests(resultFolder);