Test binding::test::size_of_event fails on i686 / 32 bits arches

[eclipseo]

Hello Team,

The following test fails on arch i686:

failures:
---- binding::test::size_of_event stdout ----
thread 'binding::test::size_of_event' panicked at src/binding.rs:255:9:
assertion `left == right` failed
  left: 16
 right: 32
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
failures:
    binding::test::size_of_event
test result: FAILED. 176 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
error: test failed, to rerun pass `--lib`

Environment:

Rustyline 12.0.0
Rust 1.73
Fedora Linux 40 (Rawhide)

[blinxen]

This test fails because the size of Event is assumed to be 32, which is only valid for 64bit systems. For 32bit systems the size would be smaller, probably 16bit (maybe more).

[gwenn]

#614

This has the effect of reducing the size of the Event enum.

So I guess we can check that the size is smaller than or equals to 32.

[gwenn]

we can also use this:
https://doc.rust-lang.org/reference/conditional-compilation.html#target_arch

  #[cfg(target_arch = "x86_64")]
  #[test]
  fn size_of_event() {
    assert_eq!(size_of::<Event>(), 32);
  }

[gwenn]

Version 13.0.0 released.