feat: add unit tests

README.md

@@ -66,7 +66,12 @@ npm run test:example
 ```
 We added jest snapshots to cover the integration tests, and you can run:
 ```bash
-npm test
+npm test:snapshot
+```
+
+We setup unit tests and use jest as the runner, and you use the command:
+```bash
+npm test:unit
 ```
 
 For local development, you need different variations of this command. First of all, you need to know about three important CLI flags:

components/helpers/utils.js

@@ -5,7 +5,9 @@ export function getServiceClientName(asyncapi) {
 
 // Function to generate service client description
 export function getServiceClientDescription(asyncapi) {
-    return `${asyncapi.info().description()}`;
+    const hasDesc = asyncapi.info().hasDescription();
+    const description = hasDesc ? `${asyncapi.info().description()}` : '';
+    return description;
   };
 
 // Function to import client service