Upgrades Jest to v24 #594
Upgrades Jest to v24 #594
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Pull Request Test Coverage Report for Build 2056
💛 - Coveralls |
| @@ -124,6 +124,7 @@ | |||
| "@babel/plugin-syntax-dynamic-import": "^7.0.0", | |||
| "@babel/plugin-syntax-import-meta": "^7.0.0", | |||
| "@babel/plugin-transform-flow-strip-types": "^7.0.0", | |||
| "@babel/plugin-transform-runtime": "^7.4.3", | |||
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Hmm! I am suspicious about this one! I've had issues with this in the past. Checking out the compiled files now.. 🤞
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@tinkertrain Ugh... yea. It's what I feared.
Check out the babel compiled code:
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.default = void 0;
var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
var _objectWithoutPropertiesLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutPropertiesLoose"));
Prior to @babel/runtime, these functions were not dependencies.
With this set up.. that means that consuming integrations HAVE to also use @babel/runtime to compile things.
I remember running into these issues during the Brigade v1.x work.
Is there a way we can get Jest 24 set up, without @babel/runtime in .babelrc?
😊
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I was afraid of something like that!
I have pushed a solution... feels a little bit like cheating...
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It's not cheating if it works! Haha
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Dang it Netlify! What's going on |
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@tinkertrain Thanks for making that babel update! Will check again in a sec :) |
| 'emotion', | ||
| ], | ||
| } | ||
| module.exports = api => { |
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Much better 😎 . Take advantage of dat JS
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Deploy preview for hsds-react ready! Built with commit 5829b79 |
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Oh darn. Netlify is struggling a bit again. Trying the build again (deleting cache + rebuild) |
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Awesome! Thanks for the review all! And of course, big thanks to @tinkertrain 🚂 for making this upgrade 😍 |
Upgrades Jest to v24
Jest 24 is the latest version of the testing framework, we'd like to keep this dependency up-to-date.
More info here and changelog here
This version includes some support for typescript, but it is only traspilation through babel, so we will continue to use ts-jest, which gets upgraded in this PR too. Here's some context from that repo regarding Jest 24
Some minor changes to the jest config were necessary and for the most part things just worked.
I did find some issues with
async/awaittests, where I found a couple of problems, among them "regenerator runtime" not found. After searching for solutions I found a few issues that touched on this problem:And some others.
The solution I came up with that fixed the issue was to add the babel plugin:
@babel/plugin-transform-runtimebut only to the 'test' environment to avoid including the runtime on our builds.Other solutions that I read about was to update the babel configuration file, specifically the
preset-env.target.nodeoption to 'current', at the moment we have '8' and I assume we want to leave it like that, so I didn't try that (my node v is 8 anyways)More info on babel and the runtime:
Watcher:
npm run test: