test: update vitest run in serial opt

Author: ryancyq

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
       - run: npm ci
       - run: npm run format:check
       - run: npm run lint
-      - run: npm run ci-test
+      - run: npm test
 
   test-action-basic:
     name: GitHub Actions Test (Basic)

.github/workflows/coverage.yml

@@ -21,7 +21,7 @@ jobs:
 
       - run: npm ci
 
-      - run: npm run ci-test -- --coverage
+      - run: npm test -- --coverage
 
       - name: Upload results to Codecov
         uses: codecov/codecov-action@v6

package.json

@@ -21,8 +21,7 @@
     "lint": "npx eslint 'src/**/*.ts'",
     "format:write": "npx prettier --write .",
     "format:check": "npx prettier --check .",
-    "test": "vitest run",
-    "ci-test": "vitest run --singleFork"
+    "test": "vitest run"
   },
   "homepage": "https://github.com/ryancyq/github-signed-commit#readme",
   "dependencies": {

vitest.config.ts

@@ -5,6 +5,11 @@ export default defineConfig({
     environment: 'node',
     testTimeout: 5000,
     include: ['__tests__/**/*.test.ts'],
+    poolOptions: {
+      forks: {
+        singleFork: !!process.env.CI,
+      },
+    },
     coverage: {
       include: ['src/**/*.ts'],
       reportsDirectory: 'coverage',