How to write test cases for functions?

Question

Software testing

There is a program function: int test_function(String A, Boolean B)
It is necessary to compose a set of hypothetical test scenarios for future unit testing for it
. There is no input specific data, only the provided function must be used for consideration.
Please explain how to write such test cases. (preferably in detail, so that it even reaches the vegetable)

Answer 1

Without what she does, there is no way we can write the necessary scripts.
For example, we are testing the function abs(x) - to check its performance, it is enough to give something positive, something negative and zero to the input.
For example, abs(2) = 2, abs(−3) = 3, abs(0) = 0.
For your example, you need to check B = true and B = false - and the jester knows the rest.