bcoe/c8

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output coverage reports using Node.js' built in coverage

Stars: 2.1k
Forks: 99
Open beginner issues: 0
Indexed issues: 107

Dominant language: JavaScript
License: ISC
Last GitHub push: Jul 14, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

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107 open issues indexed

Bug: coverage for all methods in a file is missing Open

bug p2

bcoe/c8#404 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
C8 Integration test coverage issue with on docker container Open

bcoe/c8#407 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Strange behavior in github workflow Open

question

bcoe/c8#408 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Feature Request: Add a silent option Open

feature-request

bcoe/c8#414 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Reaching mocha timeout leads to incorrect coverage (vscode extension testing) Open

bug p2

bcoe/c8#416 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Unable to configure reports-dir in config file Open

bug p1

bcoe/c8#419 · 3 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Watching child process Open

question

bcoe/c8#421 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Code coverage incorrectly reports 100% coverage when importing module with rewire Open

bug

bcoe/c8#426 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
c8 coverage is the same when running Playwright tests Open

help wanted question

bcoe/c8#427 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add support for yaml/.js configuration files Open

feature-request help wanted

bcoe/c8#431 · 2 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Crash when using `c8 node --test` Open

bug needs more info p2

bcoe/c8#432 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Data: sources: file: wrong path for filenames with slashes Open

bug p2

bcoe/c8#437 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Improve code quality by increasing code coverage. Open

enhancement

bcoe/c8#448 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Running tests with coverage causes CPU to hit 100% after tests finish Open

bcoe/c8#454 · 20 comments · 4 reactions · 0 assignees · Indexed Sep 14, 2026
Why are reports generated when tests fail? Open

bcoe/c8#455 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Should we have an `eslint-plugin-c8`? Open

bcoe/c8#456 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
"as const" is marked as uncovered in coverage reports Open

bcoe/c8#457 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
If excludeAfterRemap is enabled, the coverage stats become constant 100 Open

bcoe/c8#462 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
c8 report is directed to coverage/root which cant be resolved Open

bcoe/c8#466 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Context-insensitive parsing of sourceMappingURL Open

bcoe/c8#467 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[feat] `report-unused-ignore-directives` Open

bcoe/c8#468 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`if`, `while`, etc. body without braces not always reported in `% Stmts`, `% Lines`, or `Uncovered Line #s` Open

bcoe/c8#473 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
c8 crashes when encountering data:text/javascript;base64 URLs Open

bcoe/c8#477 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Testing Angular 11.x web appliaction with 0 coverage Open

bcoe/c8#479 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Path contains invalid characters Open

bcoe/c8#480 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
only % branch and % funcs are ignored, not % stmts or % lines Open

bcoe/c8#482 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Merge the results of different testing tools and report it (Read report from lcov.info instead of json files) Open

bcoe/c8#487 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
c8 upgrade from 8.0.0 to 8.0.1 seems to break --exclude on Windows when value is single-quoted in npm script Open

help wanted needs more info p1

bcoe/c8#488 · 13 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Unreached lines of code in lib/parse-args.js Open

bcoe/c8#489 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Coverage shows 0% in windows 11 but works good in WSL2 Open

bcoe/c8#491 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
0% coverage for files only containing TypeScript interfaces Open

bug needs more info

bcoe/c8#494 · 7 comments · 13 reactions · 0 assignees · Indexed Sep 14, 2026
missing coverage of closing brace in switch/case when const is declared Open

bcoe/c8#497 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
c8 CLI doesn't work properly when executed in a sub-directory of the project Open

bcoe/c8#498 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Lines without statements (empty lines) on them are counted as statements Open

bcoe/c8#500 · 6 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Coverage information too high for large esbuild produced bundle Open

bcoe/c8#502 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
c8rc extends attribute with relative path not working as expected Open

bcoe/c8#504 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
c8 is cashing filename/directories which do not update on change Open

bcoe/c8#507 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
c8 Code Coverage Displaying Code Misses on Multi-line Comments Open

bcoe/c8#515 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
No longer compatible with Node < 16 since upgrade to foreground-child > 3.x Open

bcoe/c8#520 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Identify what test covers what lines Open

bcoe/c8#523 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Modify coverage ranges for code run in VM Open

bcoe/c8#524 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cannot get coverage report if c8 is running in a sub-directory & src is one level up. Open

bcoe/c8#527 · 9 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
export is instrumented with 0 coverage incase of zero test project Open

bcoe/c8#528 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cannot add flags after the script Open

bcoe/c8#540 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
/* c8 ignore next */ does not ignore classes or functions Open

feature-request

bcoe/c8#544 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
c8 + vitest: Some suites get covered other suites ...dont? Open

question

bcoe/c8#545 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Missing report configuration defaultSummarizer Open

feature-request

bcoe/c8#547 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Empty code coverage on transpiled JS code Open

bcoe/c8#558 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Invalid coverage with `--experimental-monocart` when using `ts-node` Open

bcoe/c8#561 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
No discussion channel Open

bcoe/c8#564 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

bcoe/c8

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