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Questions tagged [nyc]

a command-line interface for the Istanbul code coverage tool.

nyc is a command-line interface for the Istanbul code coverage tool.

147 questions
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How to configure code coverage for .vue files?

I'm using mocha for unit testing and want to add code coverage. For that I added nyc, istanbul-instrumenter-loader and babel-plugin-istanbul and it works for js files but for .vue files an error occurs: "TypeError: Cannot read property…
chikipiki_3443
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How to filter out certain patterns from mocha/nyc test coverage (Node.js)?

In mocha.opts, I am sure how to set-up coverage pattern that needs to be taken into account but not sure how to include the patterns that has to be filtered-out? For example, I have the file mocha.opts containing coverage patterns which is passed as…
Prem
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1 answer

Error getting the coverage report with rewire / cross-env

I'm trying to get the coverage report using nyc and it works well if I'm not using the cross-env plugin. cross-env NODE_ENV=test nyc mocha --ui bdd --reporter spec --colors --require babel-core/register tests --recursive executing this command the…
mirg
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2 answers

GitLab Code Coverage Badge Not Showing

I have CI setup for a GitLab repository and the job contains the following output to the STDOUT. =============================== Coverage summary =============================== Statements : 94.25% ( 291/333 ) Branches : 62.29% ( 53/75…
Adam Thompson
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1 answer

Mocha, nyc code coverage - only testing files are covered

I wrote some tests which are placed in folder test. Problem: Code coverage with nyc shows me only CC for tested files. Want: All files in src to be shown in CC with precentage, even if they are not tested yet. My package json and…
Ernesto
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IstanbulJS code coverage shows 100% line coverage but <100% statement coverage

I am using Mocha for my test runner, and nyc for the test reporter. I don't see any uncovered lines and was wondering if anyone knows how can be uncovered functions and statements, while every line is covered.…
Bryan Lemon
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How to exclude files from Istanbul nyc coverage report

I am just trying to get the basic Istanbul nyc exclude functionality working on my project but so far I cannot. I am using Cypress to run e2e test on my react.js application. My coverage report seems to be working fine other than it not ignoring the…
Trevor Dammon
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Zero nyc coverage on Next server tested using Playwright

I'm trying to get test coverage using Playwright on a Next server. The tests reside in e2e-tests/ and the server in frontend/. After some struggles I've managed to end up some json files looking like the following inside e2e-tests/.nyc_output: { …
jorgen
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1 answer

No coverage information is generated for vscode extension using nyc

To generate the code coverage report for vscode extension, i am using nyc and running those via vscode test runner. Source : https://code.visualstudio.com/api/working-with-extensions/testing-extension Project structure: out -test -unit …
noor
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Merging coverage reports from nyc

I have a CI running that does mocha test executions in parallel. A test execution creates a coverage report coverage.json - generated by nyc. I want to have a final merged report from all of the coverage.jsons in lcov format, but I can't manage to…
alexibbb
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How to use code coverage in Electron app which uses Angular?

I write an Electron app (in TypeScript) that I test through AVA (in whose tests I use Spectron to communicate with the app). The (browser) content of my app is generated by using Angular. I execute the tests via: npm run ava All of this works…
Daniel Stephens
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'npm run coverage' is not updating lcov.info file

I am working on an API that makes use of nyc and mocha. I noticed recently that npm run coverage no longer updates lcov.file and lcov-report folder but it updates every other file/folder in the coverage folder. I can also see that the coverage is…
Fiyin Akinsiku
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4 answers

nyc not recognized as command after installation

I am very new to node.js, npm and JavaScript but for code coverage trying with Istanbul tool and hence installed nyc with npm i nyc referring to https://www.npmjs.com/package/nyc which outputs like C:\Users\user>npm i nyc npm WARN saveError ENOENT:…
Alpha
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How to include monorepo packages in Cypress code coverage

I have multi packages in monorepo. /pkg1 /pkg2 /pkg3 - react-app - cypress - src - package.json I am using @cypress/instrument-cra to collect coverage and it works only to cover the code inside react-app. I need to go further…
Jalal
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Can we merge coverage report Jest and Mocha?

I have problem when merge coverage report Jest and mocha. Currently I can export each of them. Any solution for this? Coverage Jest: Coverage Mocha:
Xuân Bình
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