/**
* @covers Email::validate
*/
public function test_return_value_is_true_or_instance_of_wp_error()
{
$res = Email::validate('*****@*****.**', 'My subject', 'My Message');
$this->assertTrue($res);
// invalid email
$res = Email::validate('example.com', 'My subject', 'My Message');
$this->assertInstanceOf('WP_Error', $res);
// no subject
$res = Email::validate('*****@*****.**', null, 'My Message');
$this->assertInstanceOf('WP_Error', $res);
// no message
$res = Email::validate('*****@*****.**', 'My subject', null);
$this->assertInstanceOf('WP_Error', $res);
}
