`cargo test -p arrow-cast` fails on main

[Jefffrey]

Describe the bug

Running cargo test -p arrow-cast on main fails.

To Reproduce

Error:

failures:

---- arrow-cast/src/display.rs - display::ArrayFormatterFactory (line 292) stdout ----
error[E0432]: unresolved import `arrow_cast::pretty`
  --> arrow-cast/src/display.rs:297:17
   |
 8 | use arrow_cast::pretty::pretty_format_batches_with_options;
   |                 ^^^^^^ could not find `pretty` in `arrow_cast`
   |
note: found an item that was configured out
  --> /Users/jeffrey/Code/arrow-rs/arrow-cast/src/lib.rs:31:9
   |
30 | #[cfg(feature = "prettyprint")]
   |       ----------------------- the item is gated behind the `prettyprint` feature
31 | pub mod pretty;
   |         ^^^^^^

error: aborting due to 1 previous error

Expected behavior

Should succeed.

Additional context

[manishkr]

I think this is by design, you need to run like cargo test -p arrow-cast --features prettyprint, please correct me, if I am wrong.

[Jefffrey]

I would expect any tests depending on a feature to also be gated behind that feature

[tysoncung]

The doctest is using arrow_cast::pretty which requires the prettyprint feature. Need to add a feature gate or compile the doctest with the right feature flags. I can submit a fix.

[alamb]

label_issue.py automatically added labels {'arrow'} from #8911