nyc
piscina
nyc | piscina | |
---|---|---|
17 | 14 | |
5,529 | 3,939 | |
0.3% | 1.5% | |
4.7 | 8.4 | |
13 days ago | 8 days ago | |
JavaScript | TypeScript | |
ISC License | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
nyc
-
Migrating from Jest to Vitest for your React Application
Native code coverage via v8 or istanbul.
-
Testing Vue components the right way
Writing tests is essential, and knowing whether you test all the required cases for your logic is even more critical. The most common testing coverage tool is Istanbul, where you can see how well your tests exercise your code by lines, functions, and branches. Below is an example of how the test coverage report looks in your terminal:
-
Don't target 100% coverage
Here is a quote from istanbul, one of the most used code coverage tool:
-
Unit testing like a Hacker
Unit testing framework was already implemented, using Vitest so I started hacking by setting up a coverage provider to explicitly identify the covered/uncovered lines and mentioned this to the maintainer in the comments. I used Istanbul š¹š· for this purpose.
-
Auto-Publish Your Test Coverage Report on GitHub Pages
Your project probably has a coverage report. If youāre using Jest as your unit test runner, generating a coverage report is embedded in it. It is done with Istanbul under the hood, which generates a nice HTML page presenting the entire project unit test coverage.
-
Dear Linux, Privileged Ports Must Die
> This is a rant written by someone with just enough understanding to be dangerous, but not quite enough wisdom to know why things are still the way they are. Most of the complaints raised are subtly inaccurate.
Author seems aware of CAP_NET_BIND_SERVICE: https://source.small-tech.org/site.js/app/-/issues/169 and https://github.com/istanbuljs/nyc/issues/1281 ā the "side effects" are NodeJS explicitly checking for it, so that's a NodeJS thing and not a Linux thing.
Yet curiously it's completely unmentioned in this article, in spite that this is probably what started the author's dislike of privileged ports. I guess it was inconvenient as it got in the way of angrily ranting.
-
Comprehensive coverage Jest+Playwright in Next.js TS
This approach will create two json coverage files, which will be merged together by NYC. Therefore the results will be purely local. If You don't mind using online tools like Codecov or Coveralls for merging data from different tests, then go ahead and use them. They will probably also be more accurate. But if You still want to learn how to get coverage from E2E, then please read through
-
When developing in React, what do you find most frustrating or cumbersome?
https://istanbul.js.org/ measures how much of your code is covered by tests
-
Production Ready React
Jest uses a package called Istanbul to provide test coverage metrics such as statement, branch, function, and line coverage so that you can understand and enforce the quality of your test suite, providing more confidence in releases.
-
Aggregating Unit Test Coverage for All Monorepoās Packages
So letās see if nyc (the code coverage generator) can help with that. Hmmā¦ this documentation seems interesting! So basically what I understand from it is that I need to collect all the reports from the different packages and then run the nyc report over it. The flow should be like this:
piscina
-
Migrating from Jest to Vitest for your React Application
Workers multi-threading via Tinypool (a lightweight fork of Piscina)
-
ānodejs can not scale well?ā
For threading best to use piscina and for clustering best to use pm2 which does not even need one line of code change in Node.js code.
- Express Backend Architecture w. heavy computing
-
Any good Node.js parallelization libraries?
We used piscina at it was quite good: https://github.com/piscinajs/piscina
-
piscina VS threadman - a user suggested alternative
2 projects | 10 Sep 20222 projects | 10 Sep 2022
-
Benchmarking Node.js Worker Threads
We used Benchmark.js for benchmarking and piscina as a pool for worker threads. benchmark.js was used to run the same code in 2 scenarios - one using a single thread and one using the piscina pool. The degree of parallelism was passed to the program via an environment variable. The test code is present in worker.js in both the cases.
-
[AskJS] How do you do JS on the backend?
piscina for managing node's worker threads
-
How Browsers Lay Out Web Pages
One other thing...this passed by in my feeds last week, Iām not an expert in web workers or browser threads etc, but it seems like it might be relevant, so sharing it just in case:
āA fast, efficient Node.js Worker Thread Pool implementationā
https://github.com/piscinajs/piscina
-
Use Multiple Threads in Node like a PRO
This is by no means a complete list of what piscina can do.... checkout the official docs here.
What are some alternatives?
jest - Delightful JavaScript Testing.
node-worker-threads-pool - Simple worker threads pool using node's worker_threads module.
istanbul - Yet another JS code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests. Supports all JS coverage use cases including unit tests, server side functional tests and browser tests. Built for scale.
threads.js - š§µ Make web workers & worker threads as simple as a function call.
Cucumber.js - Cucumber for JavaScript
bree - Bree is a Node.js and JavaScript job task scheduler with worker threads, cron, Date, and human syntax. Built for @ladjs, @forwardemail, @spamscanner, @cabinjs.
playwright-test-coverage - Extends Playwright test to measure code coverage
Nest - A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript š
mocha - āļø simple, flexible, fun javascript test framework for node.js & the browser
node-express-boilerplate - A boilerplate for building production-ready RESTful APIs using Node.js, Express, and Mongoose
jasmine - Simple JavaScript testing framework for browsers and node.js
Bee-Queue - A simple, fast, robust job/task queue for Node.js, backed by Redis.