JUnit : Files containing a string object in input and in output

Nov 2 • Backend

Hello everybody 🤠

I want to test a program which receives a file containing a string object specified by the user and which produces a file containing another string object. Let's assume the business logic of the program is delimited in one single method.

I have a question when it comes to creating unit tests for this use-case : how can i code a test which input is a file containing a string object i want to specify and which output is a new file containing another string object representing the result of this treatment ?

Are there alternatives for this use-case for JUnit within a springboot application and for JUnit within a simple java core application ?

Thank you for your help ! 😁

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