diff options
Diffstat (limited to 'tests/ui/macros/rfc-2011-nicer-assert-messages/feature-gate-generic_assert.rs')
-rw-r--r-- | tests/ui/macros/rfc-2011-nicer-assert-messages/feature-gate-generic_assert.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/macros/rfc-2011-nicer-assert-messages/feature-gate-generic_assert.rs b/tests/ui/macros/rfc-2011-nicer-assert-messages/feature-gate-generic_assert.rs new file mode 100644 index 000000000..01860adaa --- /dev/null +++ b/tests/ui/macros/rfc-2011-nicer-assert-messages/feature-gate-generic_assert.rs @@ -0,0 +1,26 @@ +// compile-flags: --test +// ignore-tidy-linelength +// run-pass + +#![feature(core_intrinsics, generic_assert, generic_assert_internals)] + +use std::fmt::{Debug, Formatter}; + +#[derive(Clone, Copy, PartialEq)] +struct CopyDebug(i32); + +impl Debug for CopyDebug { + fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), std::fmt::Error> { + f.write_str("With great power comes great electricity bills") + } +} + +#[should_panic(expected = "Assertion failed: copy_debug == CopyDebug(3)\nWith captures:\n copy_debug = With great power comes great electricity bills\n")] +#[test] +fn test() { + let copy_debug = CopyDebug(1); + assert!(copy_debug == CopyDebug(3)); +} + +fn main() { +} |