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December 22, 2016 07:05
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Email Validator Regex
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| function isEmail (str) { | |
| return str ? /^(([^<>()\[\]\.,;:\s@\"]+(\.[^<>()\[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/.test(str) : false | |
| } | |
| const test = require('ava') | |
| const sinon = require('sinon') | |
| test('validate#isEmail returns true if unicode emails', t => { | |
| t.true(isEmail('💩+तфâ.πüñó1@ӕ.昭字')) | |
| }) | |
| test('validate#isEmail returns true no matter the length of the email', t => { | |
| t.true(isEmail('the-total-length@of-an-entire-address.cannot-be-longer-than-two-hundred-and-fifty-four-characters.and-this-address-is-255-characters-exactly.so-it-should-be-invalid.and-im-going-to-add-some-more-words-here.to-increase-the-length-blah-blah-blah-blah-bl.org')) | |
| }) | |
| test('validate#isEmail returns false if email is blank', t => { | |
| t.false(isEmail('')) | |
| t.false(isEmail(' ')) | |
| }) | |
| test('validate#isEmail returns false if no . in TLD', t => { | |
| t.false(isEmail('foo@bar')) | |
| t.false(isEmail('f.oo@bar')) | |
| }) | |
| test('validate#isEmail returns false if less or more than one @', t => { | |
| t.false(isEmail('invalid')) | |
| t.false(isEmail('invalid@email@email.com')) | |
| }) | |
| test('validate#isEmail returns false only for certain special characters', t => { | |
| t.false(isEmail('<>()[],;:"@email.com')) | |
| t.true(isEmail("!#!$%&'*+-./\=?^_`{}|~@email.com")) | |
| t.false(isEmail('abc..@email.com')) | |
| t.false(isEmail("partially.\"quoted\"@sld.com")) | |
| t.false(isEmail('a b c@email.com')) | |
| }) | |
| test('validate#isEmail returns false if TLDs shorter than 2 characters', t => { | |
| t.false(isEmail('IP-instead-of-domain@127.0.0.1')) | |
| t.false(isEmail('email@sg.de.')) | |
| }) |
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