When we need data, we just create variables with the data and use them in the other places within the unit test.
consider an example of testing a function that adds two numbers
function add(a, b):
return a+b
to test this function, we need two input data.
We can simply create two variables with the data in our test function and use them as arguments for add() function.
function test_add():
// arrange
a = 10
b = 15
// act
add(a, b)