How to add data to the database before acceptance testing?

Question

Zend Framework

I recently started to delve into testing using Codeception. It is not clear how to properly use the database.
There is such a functionality - the admin, adds a record, users leave comments under it. To leave a comment, you need to know the id of the post.
In Unit tests, before each test, I created an entry in the database (through modules I accessed ZF2, then to the database mapper). And he knew exactly the number.
If I connect the ZF2 module during the acceptance test, then an error appears

Fatal error: Cannot redeclare _generated\AcceptanceTesterActions::switchToIframe()

Accept.suite.yml config

class_name: AcceptanceTester
modules:
    enabled:
        - WebDriver
        - \Helper\Acceptance
        - Db
        - ZF2
    config:
        WebDriver:
            url: 'http://test.ru/'
            browser: chrome
            port: 4444

It's not possible to just bang this line, since it is added every time the test is run, it seems like auto-generation.
In the settings, you can specify a database dump, but this is somehow inflexible ... Since a record can have several parameters, such as the date and which user groups you can add comments to. And again, the difficulty in obtaining the record number.

Answer 1

It turned out that everything is quite simple -
there is a function
that adds data to the database, after the test the function for deleting the added data is automatically called.
PS The name is not explicit, until I got into the code - I did not understand what it was doing. Why can't you call add/insert?