diff --git a/functions/helloworld/test/sample.unit.http.test.js b/functions/helloworld/test/sample.unit.http.test.js
index e08d1d6ec8..b495c3ca68 100644
--- a/functions/helloworld/test/sample.unit.http.test.js
+++ b/functions/helloworld/test/sample.unit.http.test.js
@@ -21,7 +21,7 @@ const uuid = require(`uuid`);
 const helloHttp = require(`..`).helloHttp;
 
 test(`helloHttp: should print a name`, t => {
-  // Initialize mocks
+  // Mock ExpressJS 'req' and 'res' parameters
   const name = uuid.v4();
   const req = {
     body: {
@@ -39,7 +39,7 @@ test(`helloHttp: should print a name`, t => {
 });
 
 test(`helloHttp: should print hello world`, t => {
-  // Initialize mocks
+  // Mock ExpressJS 'req' and 'res' parameters
   const req = {
     body: {}
   };