ap2i/tests/Service/Security/SwitchUserTest.php

<?php
namespace App\Test\Service\Security;

use App\Entity\Access\Access;
use App\Service\Security\SwitchUser;
use Doctrine\Common\Collections\ArrayCollection;
use PHPUnit\Framework\TestCase;

class SwitchUserTest extends TestCase
{
    /**
     * @see SwitchUser::isAllowedToSwitch()
     */
    public function testIsAllowedToSwitch(): void
    {
        $switchUser = $this->getMockBuilder(SwitchUser::class)
            ->setMethodsExcept(['isAllowedToSwitch'])
            ->getMock();

        $children = $this->getMockBuilder(Access::class)->getMock();
        $user = $this->getMockBuilder(Access::class)->getMock();
        $user
            ->expects($this->once())
            ->method('getChildren')
            ->willReturn(new ArrayCollection([$children]));

        $this->assertTrue($switchUser->isAllowedToSwitch($user, $children));
    }

    /**
     * @see SwitchUser::isAllowedToSwitch()
     */
    public function testIsNotAllowedToSwitch(): void
    {
        $switchUser = $this->getMockBuilder(SwitchUser::class)
            ->setMethodsExcept(['isAllowedToSwitch'])
            ->getMock();

        $children = $this->getMockBuilder(Access::class)->getMock();
        $user = $this->getMockBuilder(Access::class)->getMock();
        $user
            ->expects($this->once())
            ->method('getChildren')
            ->willReturn(new ArrayCollection());

        $this->assertFalse($switchUser->isAllowedToSwitch($user, $children));
    }
}