Add Unit Test

Author: mikebroberts

.gitignore

@@ -1 +1,3 @@
-samconfig.toml
+samconfig.toml
+
+node_modules

README.md

@@ -2,6 +2,13 @@
 
 Demo app for [Cloud Coffee Break](https://github.com/symphoniacloud/cloud-coffee-break).
 
+## Running Unit tests
+
+```
+% npm install
+% npm test
+```
+
 ## Creating, deploying, calling, and tearing-down
 
 First, make sure you have the prerequisites setup, as described [in the notes for Episode 1](https://github.com/symphoniacloud/cloud-coffee-break/blob/main/episode1/README.md).

__tests__/unit/api.test.js

@@ -0,0 +1,14 @@
+const lambda = require('../../src/api.js');
+
+describe('Test Web API handler', () => {
+    it('should return expected message', async () => {
+        const result = await lambda.handler({});
+
+        const expectedResult = {
+            statusCode: 200,
+            body : "Hello World Episode 2!"
+        };
+
+        expect(result).toEqual(expectedResult);
+    });
+});