Today I learned, that rust compiler will fail, if your comments are useless.
error: expected item after doc comment
--> tests/subscription_paid_to_free_downgrade_test.rs:577:1
|
442 | /// Test edge case: Multiple paid-to-free downgrade attempts
| ------------------------------------------------------------ other attributes here
...
577 | /// Test edge case: Paid-to-free downgrade with immediate paid upgrade
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this doc comment doesn't document anything