Galera estou com esse erro ao rodar os test
já rodei "composer install" e dá esse erro.
1) Alura\Calisthenics\Tests\Unit\Domain\Student\StudentTest::testStudentWithoutWatchedVideosHasAccess Error: Class 'Ds\Map' not found
Dei um "composer update" para ver se era incompatibilidade de versões
Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires PHP extension ext-ds * but it is missing from your system. Install or enable PHP's ds extension.
