Use vitest's expectTypeOf

Author: Shinigami92

.github/workflows/ci.yml

@@ -40,6 +40,9 @@ jobs:
       - name: Check
         run: pnpm run check
 
+      - name: Test types
+        run: pnpm run typecheck
+
       - name: Test
         run: pnpm run test
 

package.json

@@ -9,6 +9,7 @@
     "check": "tsc",
     "format": "prettier --write .",
     "lint": "eslint .",
+    "typecheck": "vitest typecheck",
     "test": "vitest",
     "coverage": "vitest run --coverage",
     "prepublishOnly": "pnpm run clean && pnpm install && pnpm run check",

tests/define.test.ts renamed to tests/define.test-d.ts

@@ -1,5 +1,4 @@
-import { expectTypeOf } from 'expect-type';
-import { describe, test } from 'vitest';
+import { describe, expectTypeOf, test } from 'vitest';
 import type { ESLintConfig, FlatESLintConfig } from '../src';
 import { defineConfig, defineFlatConfig } from '../src';