Mage2\User\Models\Role::hasPermission PHP Method

    public function hasPermission($permissionName)
    {
        $permissions = explode(',', $permissionName);
        $returnData = true;
        foreach ($permissions as $permission) {
            if ($this->permissions->pluck('name')->contains($permission) == false) {
                $returnData = false;
            }
        }
        return $returnData;
    }