i tried to improve the assertion messages, and added some input validation. if you want to train on this improved version, save your code somewhere, click the RESET button, and paste back your code.

the logging for Shell in this kata is not ideal, but pasting your code and running the sample tests, i do see:

testing: 835871232077058, 1
expected: 30
Shell Stdout
29
Test Failed
expected: 30
     got: 29

"shell stdout" means your answer here, while "expected" is the correct answer and 835871232077058, 1 the input

Is echo the proper way to return an output of a function in Bash? In my Bash script, I am storing the number of iterations as counter. My script finishes with echo $counter and the value printed to the console matches the expected output, but the the testing script says that it got 0.

Not clear description. Can you describe getting the value in examples?

I can't understand the conditions. The tests pass and the rest does not. Can you explain?

We need a clear explanation of how to do this. “preset Colors” it’s not clear how and what to do with it. C#