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auxiliary
auxiliary
 
 
branch
branch
 
 
condition
condition
 
 
mcdc
mcdc
 
 
README.md
README.md
 
 
abort.cov-map
abort.cov-map
 
 
abort.coverage
abort.coverage
 
 
abort.rs
abort.rs
 
 
assert-ne.cov-map
assert-ne.cov-map
 
 
assert-ne.coverage
assert-ne.coverage
 
 
assert-ne.rs
assert-ne.rs
 
 
assert.cov-map
assert.cov-map
 
 
assert.coverage
assert.coverage
 
 
assert.rs
assert.rs
 
 
assert_not.cov-map
assert_not.cov-map
 
 
assert_not.coverage
assert_not.coverage
 
 
assert_not.rs
assert_not.rs
 
 
async.cov-map
async.cov-map
 
 
async.coverage
async.coverage
 
 
async.rs
async.rs
 
 
async2.cov-map
async2.cov-map
 
 
async2.coverage
async2.coverage
 
 
async2.rs
async2.rs
 
 
async_block.cov-map
async_block.cov-map
 
 
async_block.coverage
async_block.coverage
 
 
async_block.rs
async_block.rs
 
 
bad_counter_ids.cov-map
bad_counter_ids.cov-map
 
 
bad_counter_ids.coverage
bad_counter_ids.coverage
 
 
bad_counter_ids.rs
bad_counter_ids.rs
 
 
bench.cov-map
bench.cov-map
 
 
bench.coverage
bench.coverage
 
 
bench.rs
bench.rs
 
 
closure.cov-map
closure.cov-map
 
 
closure.coverage
closure.coverage
 
 
closure.rs
closure.rs
 
 
closure_bug.cov-map
closure_bug.cov-map
 
 
closure_bug.coverage
closure_bug.coverage
 
 
closure_bug.rs
closure_bug.rs
 
 
closure_macro.cov-map
closure_macro.cov-map
 
 
closure_macro.coverage
closure_macro.coverage
 
 
closure_macro.rs
closure_macro.rs
 
 
closure_macro_async.cov-map
closure_macro_async.cov-map
 
 
closure_macro_async.coverage
closure_macro_async.coverage
 
 
closure_macro_async.rs
closure_macro_async.rs
 
 
closure_unit_return.cov-map
closure_unit_return.cov-map
 
 
closure_unit_return.coverage
closure_unit_return.coverage
 
 
closure_unit_return.rs
closure_unit_return.rs
 
 
color.coverage
color.coverage
 
 
color.rs
color.rs
 
 
conditions.cov-map
conditions.cov-map
 
 
conditions.coverage
conditions.coverage
 
 
conditions.rs
conditions.rs
 
 
continue.cov-map
continue.cov-map
 
 
continue.coverage
continue.coverage
 
 
continue.rs
continue.rs
 
 
coroutine.cov-map
coroutine.cov-map
 
 
coroutine.coverage
coroutine.coverage
 
 
coroutine.rs
coroutine.rs
 
 
coverage_attr_closure.cov-map
coverage_attr_closure.cov-map
 
 
coverage_attr_closure.coverage
coverage_attr_closure.coverage
 
 
coverage_attr_closure.rs
coverage_attr_closure.rs
 
 
dead_code.cov-map
dead_code.cov-map
 
 
dead_code.coverage
dead_code.coverage
 
 
dead_code.rs
dead_code.rs
 
 
drop_trait.cov-map
drop_trait.cov-map
 
 
drop_trait.coverage
drop_trait.coverage
 
 
drop_trait.rs
drop_trait.rs
 
 
fn_sig_into_try.cov-map
fn_sig_into_try.cov-map
 
 
fn_sig_into_try.coverage
fn_sig_into_try.coverage
 
 
fn_sig_into_try.rs
fn_sig_into_try.rs
 
 
generics.cov-map
generics.cov-map
 
 
generics.coverage
generics.coverage
 
 
generics.rs
generics.rs
 
 
if.cov-map
if.cov-map
 
 
if.coverage
if.coverage
 
 
if.rs
if.rs
 
 
if_else.cov-map
if_else.cov-map
 
 
if_else.coverage
if_else.coverage
 
 
if_else.rs
if_else.rs
 
 
if_not.cov-map
if_not.cov-map
 
 
if_not.coverage
if_not.coverage
 
 
if_not.rs
if_not.rs
 
 
ignore_map.coverage
ignore_map.coverage
 
 
ignore_map.rs
ignore_map.rs
 
 
ignore_run.cov-map
ignore_run.cov-map
 
 
ignore_run.rs
ignore_run.rs
 
 
inline-dead.cov-map
inline-dead.cov-map
 
 
inline-dead.coverage
inline-dead.coverage
 
 
inline-dead.rs
inline-dead.rs
 
 
inline.cov-map
inline.cov-map
 
 
inline.coverage
inline.coverage
 
 
inline.rs
inline.rs
 
 
inner_items.cov-map
inner_items.cov-map
 
 
inner_items.coverage
inner_items.coverage
 
 
inner_items.rs
inner_items.rs
 
 
issue-83601.cov-map
issue-83601.cov-map
 
 
issue-83601.coverage
issue-83601.coverage
 
 
issue-83601.rs
issue-83601.rs
 
 
issue-84561.cov-map
issue-84561.cov-map
 
 
issue-84561.coverage
issue-84561.coverage
 
 

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.