<?php class Email_helper_test extends CI_TestCase { public function set_up() { $this->helper('email'); } public function test_valid_email() { $this->assertEquals(FALSE, valid_email('test')); $this->assertEquals(FALSE, valid_email('test@test@test.com')); $this->assertEquals(TRUE, valid_email('test@test.com')); $this->assertEquals(TRUE, valid_email('my.test@test.com')); } }