diff --git a/test/service.spec.js b/test/service.spec.js
index 62f014eafa..d75b2112f5 100644
--- a/test/service.spec.js
+++ b/test/service.spec.js
@@ -988,8 +988,30 @@
         expect(events[0].Type).to.equal('ApiCallAttempt');
         expect(events[1].Type).to.equal('ApiCall');
         done();
-      })
-    })
+      });
+    });
+
+    if(AWS.util.isNode()) {
+      it('should enable client-side monitoring globally if corresponding environment is set', function(done) {
+          var originEnv = process.env.AWS_CSM_ENABLED;
+          process.env.AWS_CSM_ENABLED = true;
+          AWS.Service.prototype.publisher = undefined;
+          AWS.Service.defineService('acm', ['2015-12-08']);
+          expect(AWS.Service.prototype.publisher).not.equal(undefined);
+          var publisherInvoked = false
+          AWS.Service.prototype.publisher = {
+            eventHandler: function(event){
+              if (!publisherInvoked) {
+                publisherInvoked = true;
+                done() //make sure publisher is invoked
+              }
+            }
+          }
+          var client = new MockService({});
+          client.makeRequest('operationName', function(err, data) {});
+          process.env.AWS_CSM_ENABLED = originEnv;
+      });
+    }
   });
 
 }).call(this);