There are techniques to discover properties of your function as written, which can then tell you if you've written the function you intended to write: https://w

There are techniques to discover properties of your function as written, which can then tell you if you've written the function you intended to write: https://www.fuzzingbook.org/html/DynamicInvariants.html https://www.fuzzingbook.org/html/DynamicInvariants.html (also at https://www.debuggingbook.org/html/DynamicInvariants.html https://www.debuggingbook.org/html/DynamicInvariants.html)