wasmuth/test/isEmail.js

Practical, functional utilities that fallback on native implementations as much as possible

const test = require("tape");

const {isEmail} = require("../");

const fixture = [
  "sindresorhus@gmail.com",
  "foo@bar",
  "test@about.museum",
  "test@nominet.org.uk",
  "test.test@sindresorhus.com",
  "test@255.255.255.255",
  "a@sindresorhus.com",
  "test@e.com",
  "test@xn--hxajbheg2az3al.xn--jxalpdlp",
  "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghiklm@sindresorhus.com",
  "!#$%&`*+/=?^`{|}~@sindresorhus.com",
  "test@g--a.com",
  "a@abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefg.hij",
  "123@sindresorhus.com",
  '"\\a"@sindresorhus.com',
  '""@sindresorhus.com',
  '"test"@sindresorhus.com',
  '"\\""@sindresorhus.com',
  "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghiklmn@sindresorhus.com",
  "test@iana.co-uk",
  "a@a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v",
  "test@foo-bar.com",
  "foo@x.solutions",
  "foo@[IPv6:2001:db8::2]",
];

const fixtureNot = [
  "@",
  "@io",
  "@sindresorhus.com",
  "test..sindresorhus.com",
  "test@iana..com",
  "test@sindresorhus.com.",
  ".test@sindresorhus.com",
  "sindre@sindre@sindre.com",
  "mailto:sindresorhus@gmail.com",
  "foo.example.com",
];

test("exact", (t) => {
  for (const x of fixture) {
    t.true(isEmail(x));
  }
  t.end();
});

test("failures", (t) => {
  for (const x of fixtureNot) {
    t.false(isEmail(x));
  }
  t.end();
});