feat!: remove @vitest/coverage-c8 package (#3614)

docs/.vitepress/config.ts

@@ -37,7 +37,7 @@ export default withPwa(defineConfig({
     ['link', { rel: 'icon', href: '/favicon.ico', sizes: 'any' }],
     ['link', { rel: 'icon', href: '/logo.svg', type: 'image/svg+xml' }],
     ['meta', { name: 'author', content: `${teamMembers.map(c => c.name).join(', ')} and ${vitestName} contributors` }],
-    ['meta', { name: 'keywords', content: 'vitest, vite, test, coverage, snapshot, react, vue, preact, svelte, solid, lit, ruby, cypress, puppeteer, jsdom, happy-dom, test-runner, jest, typescript, esm, tinypool, tinyspy, c8, node' }],
+    ['meta', { name: 'keywords', content: 'vitest, vite, test, coverage, snapshot, react, vue, preact, svelte, solid, lit, ruby, cypress, puppeteer, jsdom, happy-dom, test-runner, jest, typescript, esm, tinypool, tinyspy, node' }],
     ['meta', { property: 'og:title', content: vitestName }],
     ['meta', { property: 'og:description', content: vitestDescription }],
     ['meta', { property: 'og:url', content: ogUrl }],

docs/config/index.md

@@ -667,10 +667,6 @@ Isolate environment for each test file. Does not work if you disable [`--threads
 
 You can use [`v8`](https://v8.dev/blog/javascript-code-coverage), [`istanbul`](https://istanbul.js.org/) or [a custom coverage solution](/guide/coverage#custom-coverage-provider) for coverage collection.
 
-::: info
-The `c8` provider is being replaced by the `v8` provider. It will be deprecated in the next major version.
-:::
-
 You can provide coverage options to CLI with dot notation:
 
 ```sh
@@ -683,7 +679,7 @@ If you are using coverage options with dot notation, don't forget to specify `--
 
 #### coverage.provider
 
-- **Type:** `'c8' | 'v8' | 'istanbul' | 'custom'`
+- **Type:** `'v8' | 'istanbul' | 'custom'`
 - **Default:** `'v8'`
 - **CLI:** `--coverage.provider=<provider>`
 
@@ -693,7 +689,7 @@ Use `provider` to select the tool for coverage collection.
 
 - **Type:** `boolean`
 - **Default:** `false`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.enabled`, `--coverage.enabled=false`
 
 Enables coverage collection. Can be overridden using `--coverage` CLI option.
@@ -702,7 +698,7 @@ Enables coverage collection. Can be overridden using `--coverage` CLI option.
 
 - **Type:** `string[]`
 - **Default:** `['**']`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.include=<path>`, `--coverage.include=<path1> --coverage.include=<path2>`
 
 List of files included in coverage as glob patterns
@@ -711,7 +707,7 @@ List of files included in coverage as glob patterns
 
 - **Type:** `string | string[]`
 - **Default:** `['.js', '.cjs', '.mjs', '.ts', '.mts', '.cts', '.tsx', '.jsx', '.vue', '.svelte']`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.extension=<extension>`, `--coverage.extension=<extension1> --coverage.extension=<extension2>`
 
 #### coverage.exclude
@@ -733,7 +729,7 @@ List of files included in coverage as glob patterns
   '**/.{eslint,mocha,prettier}rc.{?(c|m)js,yml}',
 ]
 ```
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.exclude=<path>`, `--coverage.exclude=<path1> --coverage.exclude=<path2>`
 
 List of files excluded from coverage as glob patterns.
@@ -742,7 +738,7 @@ List of files excluded from coverage as glob patterns.
 
 - **Type:** `boolean`
 - **Default:** `false`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.all`, `--coverage.all=false`
 
 Whether to include all files, including the untested ones into report.
@@ -751,7 +747,7 @@ Whether to include all files, including the untested ones into report.
 
 - **Type:** `boolean`
 - **Default:** `true`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.clean`, `--coverage.clean=false`
 
 Clean coverage results before running tests
@@ -760,7 +756,7 @@ Clean coverage results before running tests
 
 - **Type:** `boolean`
 - **Default:** `true`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.cleanOnRerun`, `--coverage.cleanOnRerun=false`
 
 Clean coverage report on watch rerun
@@ -769,7 +765,7 @@ Clean coverage report on watch rerun
 
 - **Type:** `string`
 - **Default:** `'./coverage'`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.reportsDirectory=<path>`
 
 Directory to write coverage report to.
@@ -778,7 +774,7 @@ Directory to write coverage report to.
 
 - **Type:** `string | string[] | [string, {}][]`
 - **Default:** `['text', 'html', 'clover', 'json']`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.reporter=<reporter>`, `--coverage.reporter=<reporter1> --coverage.reporter=<reporter2>`
 
 Coverage reporters to use. See [istanbul documentation](https://istanbul.js.org/docs/advanced/alternative-reporters/) for detailed list of all reporters. See [`@types/istanbul-reporter`](https://github.com/DefinitelyTyped/DefinitelyTyped/blob/276d95e4304b3670eaf6e8e5a7ea9e265a14e338/types/istanbul-reports/index.d.ts) for details about reporter specific options.
@@ -805,7 +801,7 @@ Since Vitest 0.31.0, you can check your coverage report in Vitest UI: check [Vit
 
 - **Type:** `boolean`
 - **Default:** `false` (since Vitest `0.34.0`)
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.reportOnFailure`, `--coverage.reportOnFailure=false`
 - **Version:** Since Vitest 0.31.2
 
@@ -815,7 +811,7 @@ Generate coverage report even when tests fail.
 
 - **Type:** `boolean`
 - **Default:** `false`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.skipFull`, `--coverage.skipFull=false`
 
 Do not show files with 100% statement, branch, and function coverage.
@@ -824,7 +820,7 @@ Do not show files with 100% statement, branch, and function coverage.
 
 - **Type:** `boolean`
 - **Default:** `false`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.perFile`, `--coverage.perFile=false`
 
 Check thresholds per file.
@@ -834,7 +830,7 @@ See `lines`, `functions`, `branches` and `statements` for the actual thresholds.
 
 - **Type:** `boolean`
 - **Default:** `false`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.thresholdAutoUpdate=<boolean>`
 
 Update threshold values `lines`, `functions`, `branches` and `statements` to configuration file when current coverage is above the configured thresholds.
@@ -843,7 +839,7 @@ This option helps to maintain thresholds when coverage is improved.
 #### coverage.lines
 
 - **Type:** `number`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.lines=<number>`
 
 Threshold for lines.
@@ -852,7 +848,7 @@ See [istanbul documentation](https://github.com/istanbuljs/nyc#coverage-threshol
 #### coverage.functions
 
 - **Type:** `number`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.functions=<number>`
 
 Threshold for functions.
@@ -861,7 +857,7 @@ See [istanbul documentation](https://github.com/istanbuljs/nyc#coverage-threshol
 #### coverage.branches
 
 - **Type:** `number`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.branches=<number>`
 
 Threshold for branches.
@@ -870,44 +866,17 @@ See [istanbul documentation](https://github.com/istanbuljs/nyc#coverage-threshol
 #### coverage.statements
 
 - **Type:** `number`
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.statements=<number>`
 
 Threshold for statements.
 See [istanbul documentation](https://github.com/istanbuljs/nyc#coverage-thresholds) for more information.
 
-#### coverage.allowExternal
-
-- **Type:** `boolean`
-- **Default:** `false`
-- **Available for providers:** `'c8'`
-- **CLI:** `--coverage.allowExternal`, `--coverage.allowExternal=false`
-
-Allow files from outside of your cwd.
-
-#### coverage.excludeNodeModules
-
-- **Type:** `boolean`
-- **Default:** `true`
-- **Available for providers:** `'c8'`
-- **CLI:** `--coverage.excludeNodeModules`, `--coverage.excludeNodeModules=false`
-
-Exclude coverage under `/node_modules/`.
-
-#### coverage.src
-
-- **Type:** `string[]`
-- **Default:** `process.cwd()`
-- **Available for providers:** `'c8'`
-- **CLI:** `--coverage.src=<path>`
-
-Specifies the directories that are used when `--all` is enabled.
-
 #### coverage.100
 
 - **Type:** `boolean`
 - **Default:** `false`
-- **Available for providers:** `'c8' | 'v8'`
+- **Available for providers:** `'v8'`
 - **CLI:** `--coverage.100`, `--coverage.100=false`
 
 Shortcut for `--check-coverage --lines 100 --functions 100 --branches 100 --statements 100`.
@@ -946,7 +915,7 @@ See [istanbul documentation](https://github.com/istanbuljs/nyc#ignoring-methods)
 }
 ```
 
-- **Available for providers:** `'c8' | 'v8' | 'istanbul'`
+- **Available for providers:** `'v8' | 'istanbul'`
 
 Watermarks for statements, lines, branches and functions. See [istanbul documentation](https://github.com/istanbuljs/nyc#high-and-low-watermarks) for more information.
 

docs/guide/coverage.md

@@ -6,10 +6,6 @@ title: Coverage | Guide
 
 Vitest supports Native code coverage via [`v8`](https://v8.dev/blog/javascript-code-coverage) and instrumented code coverage via [`istanbul`](https://istanbul.js.org/).
 
-:::info
-The `c8` provider is being replaced by the [`v8`](https://v8.dev/blog/javascript-code-coverage) provider. It will be deprecated in the next major version.
-:::
-
 ## Coverage Providers
 
 :::tip

examples/react-testing-lib/package.json

@@ -20,7 +20,7 @@
     "@types/react": "^18.0.24",
     "@types/react-dom": "^18.0.8",
     "@vitejs/plugin-react": "latest",
-    "@vitest/coverage-c8": "^0.24.5",
+    "@vitest/coverage-v8": "latest",
     "@vitest/ui": "latest",
     "jsdom": "latest",
     "typescript": "^4.8.4",

package.json

@@ -44,7 +44,6 @@
     "@types/node": "^18.16.19",
     "@types/ws": "^8.5.5",
     "@vitest/browser": "workspace:*",
-    "@vitest/coverage-c8": "workspace:*",
     "@vitest/coverage-istanbul": "workspace:*",
     "@vitest/coverage-v8": "workspace:*",
     "@vitest/ui": "workspace:*",