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Is it possible to use Stripe test mode?



So i’ve created a ecommerce site, bought a hosting package and successfully connected my Stripe account.
Before launching it live, I would like to try the whole process from adding a product to the cart till getting a conformation email.
I saw Stripe has a test mode where they gave me a few dummy CC details to play with.

Can anyone help me how to actually implement it to my project?

This is the site I am building