firefly-iii/tests/ExampleTest.php

<?php

/**
 * Class ExampleTest
 */
class ExampleTest extends TestCase
{

    /**
     * A basic functional test example.
     *
     * @return void
     */
    public function testBasicExample()
    {
        $response = $this->call('GET', '/');

        $this->assertEquals(200, $response->getStatusCode());
    }

}