To verify a correct implementation of the Consent Solution you need to determine of all cookies that are not necessary for the website are blocked before the user accepts cookies.
When a user arrives at a website, they should be met with a Consent Pop-up, that informs about the cookies the websites sets and have the option to consent to each purpose of cookies.
Furthermore all cookies that are not necessary for the website should be blocked before the user consents. This is done by following this article: How to implement the Cookie Control SDK (holding back cookies prior to consent).
When correctly implemented, it should like something like this: