laravel fatal error for TestCase not found

Question

http://localhost/laravel/app/tests/ExampleTest.php

if i run laravel it shows the following error

Fatal error: Class \'TestCase\' not found in D

Answer 1

Had the same issue with PHPUnit, he would output always the same message : PHP Fatal error: Class 'Tests\TestCase' not found ... and indeed I think he had troubles to find that class so what you need to do is transform one line :

From this :

<?php

namespace Tests\Feature;

use Tests\TestCase;
use Illuminate\Foundation\Testing\WithFaker;
use Illuminate\Foundation\Testing\RefreshDatabase;

class AnotherTest extends TestCase {
    public function testExample() {
        // Do something
    }
}

To this :

<?php

namespace Tests\Feature;

use PHPUnit\Framework\TestCase;
use Illuminate\Foundation\Testing\WithFaker;
use Illuminate\Foundation\Testing\RefreshDatabase;

class AnotherTest extends TestCase {
    public function testExample() {
        // Do something
    }
}

Notice the first line in use and you should do this if there's any other files in the same case

Answer 2

The is caused by an outdated phpunit. If you using a globally installed phpunit, here is a link on how to update it https://stackoverflow.com/a/40701333/3792206 . Or you can explicitly use the phpunit that was installed with the project.