Closed
Description
When using -Zinstrument-coverage, my coverage reports often (but not always), report things like:
res::strings::tests::iterator_test_01:
253| 1| fn iterator_test_01() {
254| 1| let mystr = "blue\u{E00E}";
255| 1| let i = CharToU16Iterator::new(mystr);
256| 1| let res: Vec<u16> = i.collect();
257| 0| assert_eq!(res, &[98, 108, 117, 101, 0xe00e]);
258| 1| }
I.e.: the assert_eq! is marked with no coverage. (Now, it's a whole other can of worms for why my testcases themselves should be included in coverage, but I think that's a question for the llvm people, not the rust people.)
Naturally, my expectation is that all the lines of this non-branching testcase have the same execution counts.
I've changed things around, on occasion, to assert!(a == b) instead, and that seems to resolve things, but I'd really rather not have to go to that step.
Meta
rustc --version --verbose:
rustc 1.52.0-nightly (caca2121f 2021-03-05)
binary: rustc
commit-hash: caca2121ffe4cb47d8ea2d9469c493995f57e0b5
commit-date: 2021-03-05
host: x86_64-unknown-linux-gnu
release: 1.52.0-nightly
LLVM version: 12.0.0