chore: coverage remove restart vitest (#1000)

packages/vitest/src/node/cli-api.ts

@@ -42,9 +42,14 @@ export async function startVitest(cliFilters: string[], options: CliOptions, vit
 
     if (!process.env.NODE_V8_COVERAGE) {
       process.env.NODE_V8_COVERAGE = ctx.config.coverage.tempDirectory
-      const { exitCode } = await execa(process.argv0, process.argv.slice(1), { stdio: 'inherit', reject: false })
-      process.exitCode = exitCode
-      return false
+      // thread enable test will exec in thread
+      // so don't need to restarting Vitest
+      if (!ctx.config.threads) {
+        await ctx.server.close()
+        const { exitCode } = await execa(process.argv0, process.argv.slice(1), { stdio: 'inherit', reject: false })
+        process.exitCode = exitCode
+        return false
+      }
     }
   }
 

test/coverage-test/coverage-test/coverage.test.ts

@@ -0,0 +1,11 @@
+import fs from 'fs'
+import { resolve } from 'pathe'
+import { expect, test } from 'vitest'
+
+test('coverage', async() => {
+  const coveragePath = resolve('./coverage/tmp/')
+  const stat = fs.statSync(coveragePath)
+  expect(stat.isDirectory()).toBe(true)
+  const files = fs.readdirSync(coveragePath)
+  expect(files.length > 0).toBe(true)
+})

test/coverage-test/package.json

@@ -2,8 +2,12 @@
   "name": "@vitest/test-coverage",
   "private": true,
   "scripts": {
-    "test": "vitest",
-    "coverage": "vitest run --coverage"
+    "test": "npm run test:thread && npm run test:nothread",
+    "coverage": "vitest run --coverage",
+    "coverage:thread": "cross-env THREAD=true vitest run --coverage",
+    "coverage-test": "vitest -c vitest.config-coverage.ts run",
+    "test:thread": "npm run coverage:thread && npm run coverage-test",
+    "test:nothread": "npm run coverage && npm run coverage-test"
   },
   "devDependencies": {
     "@vitejs/plugin-vue": "^2.2.4",

test/coverage-test/vitest.config-coverage.ts

@@ -0,0 +1,9 @@
+import { defineConfig } from 'vite'
+
+export default defineConfig({
+  test: {
+    include: [
+      './coverage-test/*.test.ts',
+    ],
+  },
+})

test/coverage-test/vitest.config.ts

@@ -9,5 +9,12 @@ export default defineConfig({
     MY_CONSTANT: '"my constant"',
   },
   test: {
+    threads: !!process.env.THREAD,
+    include: [
+      'test/*.test.ts',
+    ],
+    exclude: [
+      'coverage-test/*.test.ts',
+    ],
   },
 })