AVA

npm install --save-dev ava
mkdir test

import test from "ava";

test("should foo", (t) => {
    t.pass();
});

t.pass
t.fail
t.assert | t.truthy
t.falsy
t.true
t.false
t.is
t.not
t.deepEqual
t.notDeepEqual
t.throws
t.notThrows
t.throwsAsync
t.notThrowsAsync
t.regex
t.notRegex
test
test.skip
test.failing
test.todo