# Tests $5$ points: Simple tests.

$s=$ DependencyScheduler$()$

s$.$add$\_$task$(\text{'}$a$\text{'},[])$

assert s$.$available$\_$tasks $=={\{}^{\text{'}}{a}^{\text{'}}\}$

AssertionError

Traceback $($most recent call last$)$

$3s=$