This project is a mock payment gateway Java API, built in a similar way to PayPal or Strip APIs, and is used during the SpectoLabs technical interview process.
#Your Task Your task is to clone the repo and create a src InMemoryPaymentService class that allows the successful execution (and passing) of all of the tests specified in the PaymentServiceTest test class.
This task should take between 30 - 60 minutes.
During the interview we will run mvn clean verify on the project and examine the successful test output and discuss
your implementation. At SpectoLabs we like Clean Code,
a good choice of algorithms and data structures, and the ability to debate your design decisions.
We will also suggest improvements to the PaymentService interface, and pair with you to write the associated tests and implementation.