NodeJS Test

Test steps:

• Unit Tests
• Integration Tests
• End to End

Unit Testing Node.js Applications

The core idea with unit testing is to test a function when giving it certain set of inputs. We cann a function with certain parameters and check we got the correct result or not.

It is good practice with Javascript code to have a directory called test/ in our project's root directory.

The Anatomy of unit Test:

Each unit test has the following Structure

• Test Setup
• Calling the tested method
• Asserting

For unit test modules in Nodejs

• test runner: mocha, alternatively tape
• assertion library: chai, alternatively the assert module (for asserting)
• test spies, stubs and mocks: sinon (for test setup).

References for Mocha Chai

• Unit Test in javascript mocha chai - sitepoint
• Node Hero unit test tutorials - rising stack
• Mocha Chai frontend JS - codeship
• Mongoose Model Tests - Codeutopia