feat(client-directory-service): Add v2 smoke tests and smithy smokeTests trait for SDK testing.

Author: awstools

codegen/sdk-codegen/aws-models/directory-service.json

@@ -2378,7 +2378,20 @@
           "outputToken": "NextToken",
           "items": "DirectoryDescriptions",
           "pageSize": "Limit"
-        }
+        },
+        "smithy.test#smokeTests": [
+          {
+            "id": "DescribeDirectoriesSuccess",
+            "params": {},
+            "vendorParams": {
+              "region": "us-west-2"
+            },
+            "vendorParamsShape": "aws.test#AwsVendorParams",
+            "expect": {
+              "success": {}
+            }
+          }
+        ]
       }
     },
     "com.amazonaws.directoryservice#DescribeDirectoriesRequest": {
@@ -3965,7 +3978,7 @@
           "sdkId": "Directory Service",
           "arnNamespace": "ds",
           "cloudFormationName": "DirectoryService",
-          "cloudTrailEventSource": "directoryservice.amazonaws.com",
+          "cloudTrailEventSource": "ds.amazonaws.com",
           "docId": "ds-2015-04-16",
           "endpointPrefix": "ds"
         },