Using Phpunit/ Why phpunit removes all data in my database

Question

I'm trying to test my functions but everytime I try to run phpunit, it will delete all the records in my tables. I already setup my phpunit.xml file, to just in my test database, I just followed everything in the docs, do I have to setup a sqlite inmy machine, since I don't have that ? or what ? I only have laragon installed and phpmyadmin.

phpunit.xml file

<?xml version="1.0" encoding="UTF-8"?>
<phpunit backupGlobals="false"
   backupStaticAttributes="false"
   bootstrap="vendor/autoload.php"
   colors="true"
   convertErrorsToExceptions="true"
   convertNoticesToExceptions="true"
   convertWarningsToExceptions="true"
   processIsolation="false"
   stopOnFailure="false">
   <testsuites>
    <testsuite name="Feature">
        <directory suffix="Test.php">./tests/Feature</directory>
    </testsuite>

    <testsuite name="Unit">
        <directory suffix="Test.php">./tests/Unit</directory>
    </testsuite>
</testsuites>
<filter>
    <whitelist processUncoveredFilesFromWhitelist="true">
        <directory suffix=".php">./app</directory>
    </whitelist>
</filter>
<php>
    <env name="APP_ENV" value="testing"/>
    <env name="CACHE_DRIVER" value="array"/> 
    <env name="SESSION_DRIVER" value="array"/>
    <env name="QUEUE_DRIVER" value="sync"/>
    <env name="DB_CONNECTION" value="sqlite"/>
    <env name="DB_DATABASE" value=":memory:"/>
</php>
</phpunit>

Answer 1

Be sure to use the DatabaseMigrations trait in your test classes. Eg.

use Illuminate\Foundation\Testing\DatabaseMigrations;
use Illuminate\Foundation\Testing\RefreshDatabase;

class SomeTest extends TestCase
{
     use DatabaseMigrations;
     use RegreshDatabase;

   /**
    * A basic test example.
    *
    * @return void
    */
    public function testSomething()
    {
        //some code
    }
        
}

This migrates your data on setup, and then registers a direction to roll back the migrations when the application is torn down at the end of the test.