https://github.com/motss/c8-code-coverage-bug

https://github.com/motss/c8-code-coverage-bug

Last synced: 3 months ago
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• Host: GitHub
• URL: https://github.com/motss/c8-code-coverage-bug
• Owner: motss
• Created: 2021-07-25T08:45:33.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2021-07-25T13:03:54.000Z (almost 4 years ago)
• Last Synced: 2025-02-11T12:53:06.671Z (5 months ago)
• Language: TypeScript
• Size: 22.5 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Incorrect code coverage report

For unknown reason, code coverage report generated by `c8` is showing incorrect result despite all branches are covered.

I even tested it with compiled JavaScript files by `swc` and the result remains unchanged when there is no additional code generated found at the said line.

## Actual behavior

![additional line reported](https://user-images.githubusercontent.com/10607759/126899579-749a1051-8a14-43ee-bc97-768c00b131dd.png)

There is 1 additional branch has been reported not being covered.

## Expected beahvior

![all lines are covered](https://user-images.githubusercontent.com/10607759/126899578-3cad23f8-283b-44bc-b38f-64114f3d54ac.png)

All lines are covered and `c8` should be able to pick up the result correctly.

## How to test

1. Run `npm i` to install depedencies

2. Run `npm t` to run test with code coverage collection