LL| |#![allow(unused_assignments)] LL| |//@ failure-status: 101 LL| | LL| 4|fn might_fail_assert(one_plus_one: u32) { LL| 4| println!("does 1 + 1 = {}?", one_plus_one); LL| 4| assert_eq!(1 + 1, one_plus_one, "the argument was wrong"); ^1 LL| 3|} LL| | LL| 1|fn main() -> Result<(), u8> { LL| 1| let mut countdown = 10; LL| 11| while countdown > 0 { LL| 11| if countdown == 1 { LL| 1| might_fail_assert(3); LL| 10| } else if countdown < 5 { LL| 3| might_fail_assert(2); LL| 6| } LL| 10| countdown -= 1; LL| | } LL| 0| Ok(()) LL| 0|} LL| | LL| |// Notes: LL| |// 1. Compare this program and its coverage results to those of the very similar test LL| |// `panic_unwind.rs`, and similar tests `abort.rs` and `try_error_result.rs`. LL| |// 2. This test confirms the coverage generated when a program passes or fails an `assert!()` or LL| |// related `assert_*!()` macro. LL| |// 3. Notably, the `assert` macros *do not* generate `TerminatorKind::Assert`. The macros produce LL| |// conditional expressions, `TerminatorKind::SwitchInt` branches, and a possible call to LL| |// `begin_panic_fmt()` (that begins a panic unwind, if the assertion test fails). LL| |// 4. `TerminatoKind::Assert` is, however, also present in the MIR generated for this test LL| |// (and in many other coverage tests). The `Assert` terminator is typically generated by the LL| |// Rust compiler to check for runtime failures, such as numeric overflows.