Testing CRUD operations

Hello All !

I am learning about PhpUnit and Php testing.

I tried to find some documentation about testing CRUD operations but I couldn't find anything related to CI.

I believe that the "problem" is that testing CRUD is a integration test, right ?

A basic "script" for testing a Add (POST) operation would be:

1 -> Send a Post request with data to a URL
2 -> Check if the return is right
3 -> Check if the record was inserted into the database

Let's start with the first step:

Question: What is the best way to send POST data from PHP for testing ? Does CI have something to help us with this ?