npm install --save-dev mocha

describe('MyTestSuite', function() {
  // Tests go here
  it('should return true when conditions are met', function() { 
  // Test assertions go here
  });
});

npm install --save-dev chai
  
describe('MyTestSuite', function() {
  // Tests go here
  it('should add two numbers correctly', function() {
    expect(2 + 3).to.equal(5);
  });  
});