rust/coverage at c5984caa443cbffdfe9223df75f6e9ab88409f1f - rust

mirror of https://github.com/rust-lang/rust.git synced 2024-12-02 11:44:28 +00:00

History

Nadrieril e8678b1030 Rollup merge of #120015 - Zalathar:format, r=dtolnay coverage: Format all coverage tests with `rustfmt` As suggested by <https://github.com/rust-lang/rust/pull/119984#discussion_r1452856806>. Test files in `tests/` are normally ignored by `x fmt`, but sometimes those files end up being run through `rustfmt` anyway, either by `rust-analyzer` or by hand. When that happens, it's annoying to have to manually revert formatting changes that are unrelated to the actual changes being made. So it's helpful for the tests in the repository to already have standard formatting beforehand. However, there are several coverage tests that deliberately use non-standard formatting, so that line counts reveal more information about where code regions begin and end. In those cases, we can use `#[rustfmt::skip]` to prevent that code from being disturbed. ``@rustbot`` label +A-code-coverage		2024-01-21 06:38:37 +01:00
..
auxiliary	coverage: Regression test for #117788	2023-11-13 12:31:44 +11:00
abort.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
abort.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
abort.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
assert_not.cov-map	coverage: Regression test for `assert!(!false)`	2023-12-16 20:58:04 +11:00
assert_not.coverage	coverage: Regression test for `assert!(!false)`	2023-12-16 20:58:04 +11:00
assert_not.rs	coverage: Regression test for `assert!(!false)`	2023-12-16 20:58:04 +11:00
assert.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
assert.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
assert.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
async2.cov-map	Enable GVN by default.	2023-12-24 20:08:57 +00:00
async2.coverage	Remove unnecessary `let`s and borrowing from `Waker::noop()` usage.	2024-01-17 12:00:27 -08:00
async2.rs	Remove unnecessary `let`s and borrowing from `Waker::noop()` usage.	2024-01-17 12:00:27 -08:00
async_block.cov-map	coverage: Add a test for `async` blocks	2023-12-20 18:48:04 +11:00
async_block.coverage	Remove unnecessary `let`s and borrowing from `Waker::noop()` usage.	2024-01-17 12:00:27 -08:00
async_block.rs	Remove unnecessary `let`s and borrowing from `Waker::noop()` usage.	2024-01-17 12:00:27 -08:00
async.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
async.coverage	Rollup merge of #120015 - Zalathar:format, r=dtolnay	2024-01-21 06:38:37 +01:00
async.rs	Rollup merge of #120015 - Zalathar:format, r=dtolnay	2024-01-21 06:38:37 +01:00
bad_counter_ids.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
bad_counter_ids.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
bad_counter_ids.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
closure_bug.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
closure_bug.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
closure_bug.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
closure_macro_async.cov-map	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
closure_macro_async.coverage	Rollup merge of #120015 - Zalathar:format, r=dtolnay	2024-01-21 06:38:37 +01:00
closure_macro_async.rs	Rollup merge of #120015 - Zalathar:format, r=dtolnay	2024-01-21 06:38:37 +01:00
closure_macro.cov-map	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
closure_macro.coverage	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
closure_macro.rs	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
closure.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
closure.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
closure.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
color.coverage	Allow coverage tests to enable `llvm-cov --use-color`	2024-01-05 13:42:54 +11:00
color.rs	Allow coverage tests to enable `llvm-cov --use-color`	2024-01-05 13:42:54 +11:00
conditions.cov-map	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
conditions.coverage	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
conditions.rs	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
continue.cov-map	coverage: Simplify building coverage expressions based on sums	2023-11-25 12:29:20 +11:00
continue.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
continue.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
coroutine.cov-map	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
coroutine.coverage	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
coroutine.rs	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
dead_code.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
dead_code.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
dead_code.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
drop_trait.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
drop_trait.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
drop_trait.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
fn_sig_into_try.cov-map	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
fn_sig_into_try.coverage	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
fn_sig_into_try.rs	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
generics.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
generics.coverage	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
generics.rs	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
if_else.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if_else.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if_else.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if_not.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if_not.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if_not.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
ignore_map.coverage	Allow tests to ignore individual test modes	2024-01-05 13:42:54 +11:00
ignore_map.rs	Allow tests to ignore individual test modes	2024-01-05 13:42:54 +11:00
ignore_run.cov-map	Allow tests to ignore individual test modes	2024-01-05 13:42:54 +11:00
ignore_run.rs	Allow tests to ignore individual test modes	2024-01-05 13:42:54 +11:00
inline-dead.cov-map	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
inline-dead.coverage	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
inline-dead.rs	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
inline.cov-map	coverage: Skip spans that can't be un-expanded back to the function body	2023-12-03 12:35:33 +11:00
inline.coverage	coverage: Skip spans that can't be un-expanded back to the function body	2023-12-03 12:35:33 +11:00
inline.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
inner_items.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
inner_items.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
inner_items.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
issue-83601.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
issue-83601.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
issue-83601.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
issue-84561.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
issue-84561.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
issue-84561.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
issue-85461.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
issue-85461.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
issue-85461.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
issue-93054.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
issue-93054.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
issue-93054.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
lazy_boolean.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
lazy_boolean.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
lazy_boolean.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
long_and_wide.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
long_and_wide.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
long_and_wide.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
loop_break_value.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
loop_break_value.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
loop_break_value.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
loops_branches.cov-map	coverage: Simplify building coverage expressions based on sums	2023-11-25 12:29:20 +11:00
loops_branches.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
loops_branches.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
macro_name_span.cov-map	macro_rules: Less hacky heuristic for using `tt` metavariable spans	2024-01-04 03:53:56 +03:00
macro_name_span.coverage	macro_rules: Less hacky heuristic for using `tt` metavariable spans	2024-01-04 03:53:56 +03:00
macro_name_span.rs	coverage: Regression test for #117788	2023-11-13 12:31:44 +11:00
match_or_pattern.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
match_or_pattern.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
match_or_pattern.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
nested_loops.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
nested_loops.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
nested_loops.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
no_cov_crate.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
no_cov_crate.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
no_cov_crate.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
no_spans_if_not.cov-map	coverage: Regression test for markers in a function with no spans	2023-12-16 11:10:11 +11:00
no_spans_if_not.coverage	coverage: Regression test for markers in a function with no spans	2023-12-16 11:10:11 +11:00
no_spans_if_not.rs	coverage: Regression test for markers in a function with no spans	2023-12-16 11:10:11 +11:00
no_spans.cov-map	coverage: Regression test for unwrapping `prev` when there are no spans	2023-12-08 22:49:12 +11:00
no_spans.coverage	coverage: Regression test for unwrapping `prev` when there are no spans	2023-12-08 22:49:12 +11:00
no_spans.rs	coverage: Regression test for unwrapping `prev` when there are no spans	2023-12-08 22:49:12 +11:00
overflow.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
overflow.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
overflow.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
panic_unwind.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
panic_unwind.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
panic_unwind.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
partial_eq.cov-map	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
partial_eq.coverage	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
partial_eq.rs	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
README.md	coverage: Rename the `run-coverage` test mode to `coverage-run`	2023-11-08 16:41:24 +11:00
simple_loop.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_loop.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_loop.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_match.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_match.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_match.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
sort_groups.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
sort_groups.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
sort_groups.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
test_harness.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
test_harness.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
test_harness.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
thin-lto.cov-map	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
thin-lto.coverage	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
thin-lto.rs	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
tight_inf_loop.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
tight_inf_loop.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
tight_inf_loop.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
trivial.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
trivial.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
trivial.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
try_error_result.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
try_error_result.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
try_error_result.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
unicode.cov-map	coverage: `llvm-cov` expects column numbers to be bytes, not code points	2024-01-08 21:58:46 +11:00
unicode.coverage	coverage: `llvm-cov` expects column numbers to be bytes, not code points	2024-01-08 21:58:46 +11:00
unicode.rs	coverage: `llvm-cov` expects column numbers to be bytes, not code points	2024-01-08 21:58:46 +11:00
unreachable.cov-map	coverage: Skip spans that can't be un-expanded back to the function body	2023-12-03 12:35:33 +11:00
unreachable.coverage	coverage: Skip spans that can't be un-expanded back to the function body	2023-12-03 12:35:33 +11:00
unreachable.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
unused_mod.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
unused_mod.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
unused_mod.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
unused.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
unused.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
unused.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
uses_crate.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
uses_crate.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
uses_crate.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
uses_inline_crate.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
uses_inline_crate.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
uses_inline_crate.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
while_early_ret.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
while_early_ret.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
while_early_ret.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
while.cov-map	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
while.coverage	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
while.rs	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
yield.cov-map	coverage: Migrate `tests/coverage-map` into `tests/coverage`	2023-11-07 11:15:19 +11:00
yield.coverage	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00
yield.rs	coverage: Migrate `tests/run-coverage` into `tests/coverage`	2023-11-07 11:15:19 +11:00

README.md

The tests in this directory are shared by two different test modes, and can be run in multiple different ways:

./x.py test coverage-map (compiles to LLVM IR and checks coverage mappings)
./x.py test coverage-run (runs a test binary and checks its coverage report)
./x.py test coverage (runs both coverage-map and coverage-run)

Maintenance note

These tests can be sensitive to small changes in MIR spans or MIR control flow, especially in HIR-to-MIR lowering or MIR optimizations.

If you haven't touched the coverage code directly, and the tests still pass in coverage-run mode, then it should usually be OK to just re-bless the mappings as necessary with ./x.py test coverage-map --bless, without worrying too much about the exact changes.