I’m working on a gameboy emulator and the amount of edge cases you have to consider feels just like this lol.

Managers when a tester does this in a planning meeting, asking for more time to write better teats: 😠

Managers when a staff level engineer does this in a post-fuckup root cause analysis meeting telling everyone what went wrong: 🤤

Managers when the tester points out it wouldn’t have happened if tests for it had gotten written:

If you were 4 and now you are 44 then you might be an integer variable. If sister is also a variable, we don’t know when she was allocated. She might also be an integer constant in which case she’s arguably immortal.

I’m a programmer and my answer would be more like the tester’s answer.

But okay I also used to be a tester so this comment is probably invalid.

import birthday;

let myAge1 = 4;
let sisterAge1 = 2;
let myAge2 = 44;

let sisterAge2 = birthday.deriveAge(myAge1, sisterAge1, myAge2);

print(sisterAge2);

Any bugs should be reported upstream. Please open a tracking issue to sync changes with eventual upstream fixes.

This all assumes all years are measured by the same orbit with no mixing and matching planets or space habitats.

The standard earth year had not been adopted system wide

That’s a good tester.
In my experience coders usually make absolutely terrible testers, testing only for the most inane case, or just positive cases (ie, it does the nominal case without bursting into fire).

!lemmySilver

Now that’s thinking like a lawyer!

I design software, another guy builds it, then I test it. I seem to have a really good intuition for ferreting out the edgiest of edge cases and generating bugs. Pretty sure he hates my guts.

You could also simplify by saying that assuming neither of them are dead, at some point while he is 44 she will be 42. Whether or not she is actually his sister seems to be irrelevant, she was stated to be his sister, so regardless of biological data, it is being presented as a fact assumption.

The space stuff is not currently possible and can be disregarded as well.

Based on the only comparison we have, the OP is twice the age of their sister. so the sister is now 44/2, or 22. Easy problem.

Really have to start with a definition of “now”

Pentester:

42, -7, Yellow, false, null, {{7*‘7’}}

clearly the answer is 22