Unit Testing of AWS lambda functions (Node.js) using Mocha, Chai and Sinon

Quick Guide

1. Run npm install to install dependencies.

2. Run npm run test to run the test cases.

3. Run npm run test-coverage to run the test cases with code coverage. Open coverage/index.html in browser to view the test case coverage.

4. To run the lambda function locally, open src/lambda/app.js and uncomment a section of code (line 12 to 15). Then run npm run start command in the terminal to execute the lambda.

Tools/Libraries Used

• Mocha
• Chai
• Sinon