chore: generate coverage report when deploying site (#11110)

* chore: generate coverage report when deploying site

* always generate report

Author: Rich-Harris

package.json

@@ -20,8 +20,8 @@
     "check": "cd packages/svelte && pnpm build && cd ../../ && pnpm -r check",
     "format": "prettier --write .",
     "lint": "prettier --check . && eslint ./",
-    "test": "vitest run --coverage",
-    "test-output": "vitest run --reporter=json --outputFile=sites/svelte-5-preview/src/routes/status/results.json",
+    "test": "vitest run",
+    "test-output": "vitest run --coverage --reporter=json --outputFile=sites/svelte-5-preview/src/routes/status/results.json",
     "changeset:version": "changeset version && pnpm -r generate:version && git add --all",
     "changeset:publish": "changeset publish"
   },

sites/svelte-5-preview/src/routes/status/+page.svelte

@@ -11,7 +11,8 @@
 		<p class="details">
 			{data.results.total} tests ({data.results.suites.length} suites) – {data.results.passed} passed,
 			{data.results.failed}
-			failed, {data.results.skipped} skipped
+			failed, {data.results.skipped} skipped.
+			<a href="/coverage/index.html">See coverage report.</a>
 		</p>
 	</div>
 

vitest.config.js

@@ -37,7 +37,10 @@ export default defineConfig({
 		exclude: [...configDefaults.exclude, '**/samples/**'],
 		coverage: {
 			provider: 'v8',
-			reporter: ['lcov', 'html']
+			reporter: ['lcov', 'html'],
+			include: ['packages/svelte/src/**'],
+			reportsDirectory: 'sites/svelte-5-preview/static/coverage',
+			reportOnFailure: true
 		}
 	}
 });