chore: fix test coverage not working with vitest workspaces (@fehmer) (#5764)

package.json

@@ -58,6 +58,7 @@
   "devDependencies": {
     "@commitlint/cli": "17.7.1",
     "@commitlint/config-conventional": "17.7.0",
+    "@vitest/coverage-v8": "1.6.0",
     "@monkeytype/release": "workspace:*",
     "conventional-changelog": "4.0.0",
     "husky": "8.0.1",

pnpm-lock.yaml

@@ -17,6 +17,9 @@ importers:
       '@monkeytype/release':
         specifier: workspace:*
         version: link:packages/release
+      '@vitest/coverage-v8':
+        specifier: 1.6.0
+        version: 1.6.0(vitest@1.6.0(@types/node@20.5.1)(happy-dom@13.4.1)(sass@1.70.0)(terser@5.31.3))
       conventional-changelog:
         specifier: 4.0.0
         version: 4.0.0
@@ -12188,6 +12191,25 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
+  '@vitest/coverage-v8@1.6.0(vitest@1.6.0(@types/node@20.5.1)(happy-dom@13.4.1)(sass@1.70.0)(terser@5.31.3))':
+    dependencies:
+      '@ampproject/remapping': 2.3.0
+      '@bcoe/v8-coverage': 0.2.3
+      debug: 4.3.6(supports-color@5.5.0)
+      istanbul-lib-coverage: 3.2.2
+      istanbul-lib-report: 3.0.1
+      istanbul-lib-source-maps: 5.0.6
+      istanbul-reports: 3.1.7
+      magic-string: 0.30.11
+      magicast: 0.3.4
+      picocolors: 1.0.1
+      std-env: 3.7.0
+      strip-literal: 2.1.0
+      test-exclude: 6.0.0
+      vitest: 1.6.0(@types/node@20.5.1)(happy-dom@13.4.1)(sass@1.70.0)(terser@5.31.3)
+    transitivePeerDependencies:
+      - supports-color
+
   '@vitest/expect@1.6.0':
     dependencies:
       '@vitest/spy': 1.6.0

vitest.config.js

@@ -0,0 +1,11 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  test: {
+    coverage: {
+      enabled: true,
+      include: ["**/*.ts"],
+      reporter: ["json"],
+    },
+  },
+});