Custom Validator Not Firing

I'm trying to use a custom validator on a user profile page that manages a password change. The validator doesn't seem to be getting called.

This is not the only custom validator in the solution. I have a few others and those are all called as I expect them to be.

If there's a better way to validate the current user's password on a password change, I'll be happy to hear about it. As it is, here's what I'm doing...

I created a custom validator class called ExtendedValidator.php. Into that, I've placed a few new functions. The one that isn't being called is coded as follows:

    public function validatePwdForUser($attribute, $value, $parameters)
    {
        $this->requireParameterCount(1, $parameters, 'pwd_for_user');

        $userId = array_shift($parameters);

        $where[] = [
            ['id', '=', $userId],
            ['password', '=', bcrypt($value)]
        ];

        dd($where);
        return (1 == Users::where($where)->count());
    }

When I put a dd($parpmeters) as the first line in that method, it never dies and dumps. This tells me that the method is never getting called.

I think my controller should call that method because in the controller, I have the following code:

    public function update(Request $request, Profile $profile)
    {
        $authUser = Auth::user();
        $hasPassword = (strlen($request->input('new_password')) > 0);

        $validations = [];

        if ($hasPassword) {
            $validations [] = [
                'password' => 'required|pwd_for_user:' . $authUser->id,
                'new_password' => 'required|confirmed|min:6|password_complexity:2,ipd,ultera,helpdesk'
            ];
        }

        $this->validate($request, $validations);

When I put a dd($validations) right before the $this->validate() call, it dumps the 2 validations I expect to see. The first one should call my custom validation method. Actually, the second one should call a different custom validation method and that doesn't seem to be firing, either.

In my AppServiceProvider.php file, I reference my custom validator class:

    public function boot()
    {
        Validator::resolver(
            function($translator, $data, $rules, $messages, $customAttributes) {
                return new ExtendedValidator($translator, $data, $rules, $messages, $customAttributes);
            }
        );

What have I done wrong?

Thanks!