Add tests for unsafe paste detection

[danirabbit]

Problem

As unsafe paste detection gets more complex in the types of commands it checks for, the chance for regressing here increases

Proposal

We should make sure to have tests so that it's clear what we're testing for and that we don't regress on detecting those things

Prior Art (Optional)

No response

[teamcons]

This would be my first thought (as vala newbie)
-Move the if/or tapdancing into actual full fledged check_if_multiple, check_if_admin functions who manage all the logic (take a string, spit a boolean)
-test how well those functions works again several test strings
-Id be also fine doing testing on those functions (like against our bash history to see what those functions, as standalone binaries, can flag, or on the daily usage)

[jeremypw]

Yes, some refactoring along those lines is probably required now the checks are more extensive.

[danirabbit]

Fixed in #818