SnapshotTesting
yoga
SnapshotTesting | yoga | |
---|---|---|
8 | 23 | |
3,603 | 16,905 | |
0.6% | 0.3% | |
7.4 | 9.5 | |
4 days ago | 9 days ago | |
Swift | C++ | |
MIT License | MIT License |
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Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
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SnapshotTesting
- XCTest different behavior locally vs Xcode Cloud
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Building Reddit’s Design System on iOS
Testing is an integral part of our framework. As we build out components, we leverage unit and snapshot tests to ensure our components look and feel great in any kind of situation. The underlying framework we use is the SnapshotTesting framework. Our components can leverage different themes on top of various appearances, and they can be configured even further with configuration properties. As such, it’s important that we test these various permutations to ensure that our components look great no matter what environment or settings are applied.
- SwiftUI has so many awesome features!! And none of them seem to play well with unit tests :( Am I missing something?
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Do you use visual regression tests in your projects?
I use https://github.com/pointfreeco/swift-snapshot-testing
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Visual tests
Common libraries include https://github.com/uber/ios-snapshot-test-case/ and https://github.com/pointfreeco/swift-snapshot-testing.
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iOSSnapshotTestCase or SnapshotTesting?
iOSSnapshotTestCase (previously FBSnapshotTestCase) mainly written in objective C or pointfreeco/swift-snapshot-testing in Swift. What is your opinion in 2022?
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How do I know if I made auto-layout right to fit every device?
Try this library, I use it at work and can recommend. Good luck!
- Snapshot Testing in Swift
yoga
- Show HN: Dropflow, a CSS layout engine for node or <canvas>
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Building Reddit’s Design System on iOS
We still wanted to leverage a layout engine that could be performant and easy-to-use. After doing some performance testing with native UIKit, Autolayout, and a few other third-party options, we ended up bringing FlexLayout into the mix, which is a Swift implementation of Facebook’s Yoga layout engine. All RPL components utilize FlexLayout in order to lay out content fast and efficiently. While we’ve enjoyed using it, we’ve found a few touch points to be mindful of. There are some rough edges we’ve found, such as utilizing stack views with subviews that use FlexLayout, that often come at odds with both UIKit and FlexLayout’s layout engines.
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We're building a browser when it's supposed to be impossible
We have our own test suite (orginally derived from the test suite of Meta's Yoga layout library [0]) which consists of text fixtures that are small HTML snippets [1] and a test harness [2] that turns those into runnable tests, utilising headless chrome both to parse the HTML and to generate the assertions based on the layout that Chrome renders (so we are effectively comparing our implementation against Chrome). We currently have 686 generated tests (covering both Flexbox and CSS Grid).
We would like to utilise the Web Platform Test suite [3], however these are not in a standard format and many of the tests require JavaScript so we are not currently able to do that.
[0]: https://github.com/facebook/yoga
[1]: https://github.com/DioxusLabs/taffy/tree/main/test_fixtures
[2]: https://github.com/DioxusLabs/taffy/tree/main/scripts/gentes...
[3]: https://github.com/web-platform-tests/wpt/tree/master/css/cs...
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minimax — minimalist 3D game engine in Clojure
The "engine" is built on top of amazing https://www.lwjgl.org/ and https://github.com/bkaradzic/bgfx/, and UI system is baked by https://github.com/memononen/nanovg and https://github.com/facebook/yoga
- Show HN: Taffy – CSS Grid (+Flexbox) as a Library
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React vs React Native: How Different Are They, Really?
React Native uses the Yoga engine under the hood, which allows you to use CSS properties to layout your React Native UI in a way that translates really well. Layout in Yoga is limited to Flexbox and absolute/relative positioning, however; there is no CSS grid and no display attribute. This keeps things simpler and more performant, but if developers are accustomed to using other layout techniques on the web, they’ll need to adjust to this new limitation.
- When dealing with UI, does any of you uses glViewport to layout your elements in the correct place?
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Taffy 0.2 Release: Blazing Fast UI Layout in Rust. Now with `gap`!
PR #246 is super interesting to check out: by fixing the caching strategy, we were able to eliminate an exponential time (with respect to tree depth) performance penalty, and get comparable speeds for flat and deeply nested layouts (something I'd never expected to be possible). Preliminary benchmarks shows us significantly faster than yoga, Meta's C++ library for the same thing, especially on deep trees. Not too shabby for a tiny team of volunteers!
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How To Build a CLI With Node.js and React
You're going to build the CLI using Ink, a React component-based library for building interactive CLIs. It uses Yoga to build Flexbox layouts in the terminal, so most CSS-like props are available in Ink as well. Ink is simply a React renderer for the terminal, so all the React features are supported. No need to learn a new syntax specific to Ink.
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Show HN: Satori – Convert HTML and CSS to SVG in Milliseconds
Interesting.
I was thinking that this was going to be a crazy amount of layout engine work, but now I look a little closer it appears the layout work is farmed out to yoga [0] (not trying to take away anything from the effort here). So this project is almost a wrapper around running yoga as a renderer and using SVG as a form of backend target?
I say "appears" because the yoga landing page doesn't do a great job of explaining what it does.
[0] https://github.com/facebook/yoga
What are some alternatives?
iOS Snapshot Test Case - Snapshot view unit tests for iOS
react-native-skia - High-performance React Native Graphics using Skia
ios-snapshot-test-case - Snapshot view unit tests for iOS
hermes - A JavaScript engine optimized for running React Native.
Mockingbird - Simplify software testing, by easily mocking any system using HTTP/HTTPS, allowing a team to test and develop against a service that is not complete or is unstable or just to reproduce planned/edge cases.
react-native-skia - Cross platform React Native solution to draw graphics based on Skia
second_curtain - Upload failing iOS snapshot tests cases to S3
stretch - High performance flexbox implementation written in rust
DVR - Network testing for Swift
taffy - A high performance rust-powered UI layout library
Buildasaur - Automatic testing of your Pull Requests on GitHub and BitBucket using Xcode Server. Keep your team productive and safe. Get up and running in minutes. @buildasaur
react-navigation - Routing and navigation for your React Native apps