How do I test my Node.js modules effectively?

How do I test my Node.js modules effectively?

To test your Node.js modules effectively, you can use testing frameworks like Mocha or Jest. They provide tools for writing and running tests.

What are some best practices for writing tests?

Some best practices include writing clear and concise tests, using descriptive names, and testing both positive and negative cases.

Can you show me an example of a test case?

Sure! Here's a simple example using Mocha:

const assert = require('assert');
const myModule = require('./myModule');

describe('myModule', function() {
  it('should return the correct value', function() {
    assert.strictEqual(myModule.someFunction(), expectedValue);
  });
});

How do I run the tests after writing them?

You can run your tests by using the command mocha or jest in your terminal, depending on the framework you chose.