不明白为什么我收到 codecept 错误

Question

I'm writing a small test program where I want to reach login form and to fill it. However, I receive an error.

Here's what I got in my code:

<?php

class loginCest
{
    public function frontpageWorks(AcceptanceTester $I)
    {

        $I->wantTo("Create login test");
        $I->amOnPage('my link');
        $I->see("join");
        $I->fillField('.form-control', 'my_login');
    }
}

Answer 1

I would try with a strict locator like:

$I->fillField(['name' => 'userIdentifier'], 'my_login');

because codeceptions might find more than one element (and even a non-input) with the class .form-control