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rust/tests/coverage
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Zalathar 599f95ecc2 coverage: Include the highest counter ID seen in .cov-map dumps 
When making changes that have a large impact on coverage counter creation, this
makes it easier to see whether the number of physical counters has changed.

(The highest counter ID seen in coverage maps is not necessarily the same as
the number of physical counters actually used by the instrumented code, but
it's the best approximation we can get from looking only at the coverage maps,
and it should be reasonably accurate in most cases.)
2024-10-11 21:04:37 +11:00
..
attr coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
auxiliary coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
branch coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
condition coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
mcdc coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
abort.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
abort.coverage Remove c_unwind from tests and fix tests 2024-06-19 13:54:55 +01:00
abort.rs Remove c_unwind from tests and fix tests 2024-06-19 13:54:55 +01:00
assert_not.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
assert_not.coverage
assert_not.rs
assert-ne.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
assert-ne.coverage coverage: Add tests/coverage/assert-ne.rs 2024-06-12 22:38:16 +10:00
assert-ne.rs coverage: Add tests/coverage/assert-ne.rs 2024-06-12 22:38:16 +10:00
assert.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
assert.coverage
assert.rs
async2.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
async2.coverage coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
async2.rs coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
async_block.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
async_block.coverage coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
async_block.rs coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
async.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
async.coverage coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
async.rs coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
await_ready.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
await_ready.coverage coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
await_ready.rs coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
bad_counter_ids.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
bad_counter_ids.coverage
bad_counter_ids.rs
bench.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
bench.coverage
bench.rs
closure_bug.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
closure_bug.coverage
closure_bug.rs
closure_macro_async.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
closure_macro_async.coverage coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
closure_macro_async.rs coverage: Extract executor::block_on from several async coverage tests 2024-09-10 16:08:36 +10:00
closure_macro.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
closure_macro.coverage
closure_macro.rs
closure_unit_return.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
closure_unit_return.coverage
closure_unit_return.rs
closure.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
closure.coverage
closure.rs
color.coverage Simplify the directives for ignoring coverage-test modes 2024-10-08 22:51:53 +11:00
color.rs Simplify the directives for ignoring coverage-test modes 2024-10-08 22:51:53 +11:00
conditions.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
conditions.coverage
conditions.rs
continue.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
continue.coverage
continue.rs
coroutine.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
coroutine.coverage Manually run x fmt on all source files in tests/coverage/ 2024-05-29 14:34:17 +10:00
coroutine.rs Manually run x fmt on all source files in tests/coverage/ 2024-05-29 14:34:17 +10:00
coverage_attr_closure.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
coverage_attr_closure.coverage
coverage_attr_closure.rs
dead_code.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
dead_code.coverage
dead_code.rs
drop_trait.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
drop_trait.coverage
drop_trait.rs
fn_sig_into_try.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
fn_sig_into_try.coverage
fn_sig_into_try.rs
generics.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
generics.coverage
generics.rs
holes.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
holes.coverage coverage: Extract hole spans from HIR instead of MIR 2024-07-08 21:22:56 +10:00
holes.rs coverage: Test for handling of nested item spans 2024-07-08 20:24:15 +10:00
if_else.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
if_else.coverage
if_else.rs
if_not.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
if_not.coverage
if_not.rs
if.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
if.coverage
if.rs
ignore_map.coverage Simplify the directives for ignoring coverage-test modes 2024-10-08 22:51:53 +11:00
ignore_map.rs Simplify the directives for ignoring coverage-test modes 2024-10-08 22:51:53 +11:00
ignore_run.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
ignore_run.rs Simplify the directives for ignoring coverage-test modes 2024-10-08 22:51:53 +11:00
inline-dead.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
inline-dead.coverage Tweak various coverage test files for slightly nicer formatting 2024-05-29 14:34:11 +10:00
inline-dead.rs Tweak various coverage test files for slightly nicer formatting 2024-05-29 14:34:11 +10:00
inline.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
inline.coverage
inline.rs
inner_items.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
inner_items.coverage Tweak various coverage test files for slightly nicer formatting 2024-05-29 14:34:11 +10:00
inner_items.rs Tweak various coverage test files for slightly nicer formatting 2024-05-29 14:34:11 +10:00
issue-83601.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
issue-83601.coverage
issue-83601.rs
issue-84561.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
issue-84561.coverage
issue-84561.rs
issue-85461.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
issue-85461.coverage
issue-85461.rs
issue-93054.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
issue-93054.coverage
issue-93054.rs
lazy_boolean.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
lazy_boolean.coverage
lazy_boolean.rs
let_else_loop.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
let_else_loop.coverage Manually run x fmt on all source files in tests/coverage/ 2024-05-29 14:34:17 +10:00
let_else_loop.rs Manually run x fmt on all source files in tests/coverage/ 2024-05-29 14:34:17 +10:00
long_and_wide.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
long_and_wide.coverage
long_and_wide.rs
loop_break_value.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
loop_break_value.coverage
loop_break_value.rs
loop-break.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
loop-break.coverage coverage: Replace the old span refiner with a single function 2024-06-12 22:59:24 +10:00
loop-break.rs coverage: Add tests/coverage/loop-break.rs 2024-06-12 22:48:11 +10:00
loops_branches.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
loops_branches.coverage
loops_branches.rs
macro_in_closure.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
macro_in_closure.coverage
macro_in_closure.rs
macro_name_span.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
macro_name_span.coverage
macro_name_span.rs
match_or_pattern.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
match_or_pattern.coverage
match_or_pattern.rs
nested_loops.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
nested_loops.coverage
nested_loops.rs
no_cov_crate.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
no_cov_crate.coverage coverage: Extract hole spans from HIR instead of MIR 2024-07-08 21:22:56 +10:00
no_cov_crate.rs
no_spans_if_not.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
no_spans_if_not.coverage
no_spans_if_not.rs
no_spans.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
no_spans.coverage
no_spans.rs
overflow.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
overflow.coverage
overflow.rs
panic_unwind.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
panic_unwind.coverage
panic_unwind.rs
partial_eq.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
partial_eq.coverage Manually run x fmt on all source files in tests/coverage/ 2024-05-29 14:34:17 +10:00
partial_eq.rs Manually run x fmt on all source files in tests/coverage/ 2024-05-29 14:34:17 +10:00
README.md
simple_loop.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
simple_loop.coverage
simple_loop.rs
simple_match.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
simple_match.coverage
simple_match.rs
sort_groups.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
sort_groups.coverage
sort_groups.rs
test_harness.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
test_harness.coverage
test_harness.rs
tight_inf_loop.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
tight_inf_loop.coverage
tight_inf_loop.rs
trivial.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
trivial.coverage
trivial.rs
try_error_result.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
try_error_result.coverage Tweak various coverage test files for slightly nicer formatting 2024-05-29 14:34:11 +10:00
try_error_result.rs Tweak various coverage test files for slightly nicer formatting 2024-05-29 14:34:11 +10:00
unicode.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
unicode.coverage
unicode.rs
unreachable.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
unreachable.coverage
unreachable.rs
unused_mod.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
unused_mod.coverage
unused_mod.rs
unused.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
unused.coverage
unused.rs
uses_crate.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
uses_crate.coverage Tweak various coverage test files for slightly nicer formatting 2024-05-29 14:34:11 +10:00
uses_crate.rs
uses_inline_crate.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
uses_inline_crate.coverage Tweak various coverage test files for slightly nicer formatting 2024-05-29 14:34:11 +10:00
uses_inline_crate.rs
while_early_ret.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
while_early_ret.coverage
while_early_ret.rs
while.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
while.coverage
while.rs
yield.cov-map coverage: Include the highest counter ID seen in .cov-map dumps 2024-10-11 21:04:37 +11:00
yield.coverage Manually run x fmt on all source files in tests/coverage/ 2024-05-29 14:34:17 +10:00
yield.rs Manually run x fmt on all source files in tests/coverage/ 2024-05-29 14:34:17 +10:00

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.