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| 1 | +# @putout/plugin-vitest [![NPM version][NPMIMGURL]][NPMURL] |
| 2 | + |
| 3 | +[NPMIMGURL]: https://img.shields.io/npm/v/@putout/plugin-vitest.svg?style=flat&longCache=true |
| 4 | +[NPMURL]: https://npmjs.org/package/@putout/plugin-vitest "npm" |
| 5 | + |
| 6 | +> A Vite-native testing framework. It's fast! |
| 7 | +> |
| 8 | +> (c) [vitest.dev](https://vitest.dev/) |
| 9 | +
|
| 10 | +🐊[**Putout**](https://github.com/coderaiser/putout) plugin helps to migrate to [migrate to latest version of vitest](https://vitest.dev/guide/migration.html#migration-guide). |
| 11 | + |
| 12 | +## Install |
| 13 | + |
| 14 | +``` |
| 15 | +npm i @putout/plugin-vitest -D |
| 16 | +``` |
| 17 | + |
| 18 | +## Rules |
| 19 | + |
| 20 | +- ✅ [v3-apply-options-as-second-argument](#v3-apply-options-as-second-argument); |
| 21 | +- ✅ [v3-apply-browser-instances](#v3-apply-browser-instances); |
| 22 | + |
| 23 | +## Config |
| 24 | + |
| 25 | +```json |
| 26 | +{ |
| 27 | + "rules": { |
| 28 | + "vitest": "on" |
| 29 | + } |
| 30 | +} |
| 31 | +``` |
| 32 | + |
| 33 | +## v3-apply-options-as-second-argument |
| 34 | + |
| 35 | +> Vitest 3.0 prints a warning if you pass down an object as a third argument to test or describe functions. |
| 36 | +> Vitest 4.0 will throw an error if the third argument is an object. |
| 37 | +> |
| 38 | +> (c) [vitest.dev](https://vitest.dev/guide/migration.html#test-options-as-a-third-argument) |
| 39 | +
|
| 40 | +Checkout in 🐊[**Putout Editor**](https://putout.cloudcmd.io/#/gist/908b58a6478a26c5ef14c5ee793bf59e/31712984095bcf59ccf9a1a2619e1a1c19f69891). |
| 41 | + |
| 42 | +### ❌ Example of incorrect code |
| 43 | + |
| 44 | +```js |
| 45 | +test('validation works', () => { |
| 46 | + // ... |
| 47 | +}, { |
| 48 | + retry: 3, |
| 49 | +}); |
| 50 | +``` |
| 51 | + |
| 52 | +### ✅ Example of correct code |
| 53 | + |
| 54 | +```js |
| 55 | +test('validation works', {retry: 3}, () => { |
| 56 | + // ... |
| 57 | +}); |
| 58 | +``` |
| 59 | + |
| 60 | +## v3-apply-browser-instances |
| 61 | + |
| 62 | +> Both `browser.name` and `browser.providerOptions` will be removed in Vitest 4. Instead of them, use the new `browser.instances` option. |
| 63 | +> |
| 64 | +> (c) [vitest.dev](https://vitest.dev/guide/migration.html#test-options-as-a-third-argument) |
| 65 | +
|
| 66 | +Checkout in 🐊[**Putout Editor**](https://putout.cloudcmd.io/#/gist/1ffbaec363b8094137bb02f561ce2bd2/a3563e8c8ae9b18733d369f5669402e2da59d542). |
| 67 | + |
| 68 | +### ❌ Example of incorrect code |
| 69 | + |
| 70 | +```js |
| 71 | +export default defineConfig({ |
| 72 | + test: { |
| 73 | + browser: { |
| 74 | + name: 'chromium', |
| 75 | + providerOptions: { |
| 76 | + launch: { |
| 77 | + devtools: true, |
| 78 | + }, |
| 79 | + }, |
| 80 | + }, |
| 81 | + }, |
| 82 | +}); |
| 83 | +``` |
| 84 | + |
| 85 | +### ✅ Example of correct code |
| 86 | + |
| 87 | +```js |
| 88 | +export default defineConfig({ |
| 89 | + test: { |
| 90 | + browser: { |
| 91 | + instances: [{ |
| 92 | + name: 'chromium', |
| 93 | + providerOptions: { |
| 94 | + launch: { |
| 95 | + devtools: true, |
| 96 | + }, |
| 97 | + }, |
| 98 | + }], |
| 99 | + }, |
| 100 | + }, |
| 101 | +}); |
| 102 | +``` |
| 103 | + |
| 104 | +## License |
| 105 | + |
| 106 | +MIT |
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