Promise Kata

promise.js

// Implementation
class Promise {}

// Test Code
const adapter = {
    deferred() {
        const pending = {};
        pending.promise = new Promise((resolver, reject) => {
            pending.resolve = resolver;
            pending.reject = reject;
        });
        return pending;
    },
    resolved: val => Promise.resolve(val),
    rejected: val => Promise.reject(val)
};

require("promises-aplus-tests")(adapter, { reporter: "dot" }, console.error.bind(console));