How to fix this DEPRECATION error in codeception? - codeception

Question

I am using codeception,when I try to check dbconnection it shows the error:
> DEPRECATION: Calling the
> "Symfony\Component\EventDispatcher\EventDispatcherInterface::dispatch()"
> method with the event name as first argument is deprecated since
> Symfony 4.3, pass it second and provide the event object first
> instead.
> C:\xampp\htdocs\affiliate_codeception\codeception\vendor\symfony\event-dispatcher\EventDispatcher.php:58"
How do I fix this?
<?php
class adminTest extends \Codeception\Test\Unit
{
/**
* #var \UnitTester
*/
protected $tester;
protected function _before()
{
}
protected function _after()
{
}
// tests
public function testSomeFeature()
{
}
public function tryToTest(UnitTester $I)
{
$I->amConnectedToDatabase('testdb');
//$I->seeInDatabase('users', ['name' => 'Davert', 'email' => 'davert#mail.com']);
}
}

Answer 1

Change the code in vendor/codeception/phpunit-wrapper/src/Listener.php:
Search for
dispatcher->dispatch(
For each of them, swap the first and second arguments.
For example, the first occurrence is:
public function startTestSuite(\PHPUnit\Framework\TestSuite $suite)
{
$this->dispatcher->dispatch('suite.start', new SuiteEvent($suite));
}
Change it to:
public function startTestSuite(\PHPUnit\Framework\TestSuite $suite)
{
$this->dispatcher->dispatch(new SuiteEvent($suite), 'suite.start');
}