I have a beginner Python program that generates random output and does not take any input. For example, it simulates rolling a dice 5 times and prints the results, their sum, and average:
import random
total = 0
rolls = ""
for i in range(5):
roll = random.randint(1, 6)
rolls += str(roll) + " "
print(rolls)
print(total)
print(total / 5)
How can I create valid test cases in Polygon for a Python program that:
Does not read input
Produces random output
…without modifying thecode?
When randomness is involved in output of a method, instead of checking values, you can validate the structure of the output. For your example, the validation method would check that:
You can do it in 2 ways, one is simpler and another one is advanced.
so 1st, fix randomness with seed.
like you can add line in code that is,
random.seed(0)
below import random.
Now the output is always the same, so Polygon can compare it against a fixed .ans file.
Then:
You create one empty .in file (since your code takes no input).
Run your program to get .out file.
Upload both to Polygon.
2nd, use checker
If you truly want randomness to remain, you can:
For example, for a dice roll program:
The checker ensures there are 5 integers between 1–6,
and the average and sum are consistent.
This means your .ans file can be empty (since the output varies), but the checker validates correctness logically.
In Polygon:
Leave input files empty (.in).
Don’t upload .ans (or keep it empty).
Write a checker program in C++/Python that parses the contestant’s output and validates the format and logic.
polygontag because that refers to the geometric notion of polygon. What is "Polygon" in this context? Is there some testing framework for Python called "Polygon"? (I'm not seeing anything that looks relevant on PyPI.)