istanbuljs/nyc

Coverage for Single-File Vue Components Not Found

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#718 opened on Nov 8, 2017

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 (12 comments) (9 reactions) (0 assignees)JavaScript (5,468 stars) (392 forks)batch import
Great First Contributionbughelp wantedhigh-prioritytriaged

Description

Expected Behavior

When running nyc with the lcov reporter, I expect there to be an HTML file for viewing the code coverage of my single-file Vue components (files with the .vue extension).

Observed Behavior

The index.html page of the lcov reporter output shows the coverage of my component, but when clicking on it to get a deeper view, the file cannot be found. It's listing the file's path twice:

<rootDir>/src/components/src/components/Menu.vue

When it should be:

<rootDir>/src/components/Menu.vue

Repository that Reproduces Issue

https://github.com/tenkiller/vue_nyc

Forensic Information

Operating System: Mac OS Sierra 10.12.6 Environment Information: output.txt

Contributor guide

Tech stack
javascriptnodejsvue
Domain
clitesting
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
None
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45
Research direction
The bug is in the path generation for lcov reporter when processing .vue files. The issue likely lies in the path resolution logic in the Istanbul codebase, possibly in `lib/report/lcov.js` or similar. The reproduction repo provides a minimal setup. A fix would involve ensuring that the file path is not duplicated. The issue has 12 comments and 9 reactions, indicating community interest, but no assignee or linked PR.