nodejs-promises-unit-test-example.js

const assert = require('assert');

test('Testing async code', () => {
    getAsyncResult() // A
    .then(first => {
        assert.strictEqual(first, 'foo'); // B
        return getAsyncResult2();
    })
    .then(second => {
        assert.strictEqual(second, 'bar'); // C
    });
});