Dogfood the rule on the test folder

Author: lydell

.eslintrc.dogfood.json

@@ -0,0 +1,10 @@
+{
+  "rules": {
+    "imports": "error",
+    "exports": "error"
+  },
+  "parserOptions": {
+    "sourceType": "module",
+    "ecmaVersion": "latest"
+  }
+}

package.json

@@ -2,10 +2,11 @@
   "private": true,
   "type": "commonjs",
   "scripts": {
-    "pretest": "prettier --check . && eslint . --report-unused-disable-directives",
+    "pretest": "prettier --check . && eslint . --report-unused-disable-directives && npm run dogfood",
     "test": "vitest run",
     "posttest": "npm run build",
     "build": "node build.js",
+    "dogfood": "eslint --rulesdir src --config .eslintrc.dogfood.json test",
     "examples": "eslint --rulesdir src --no-ignore --fix-dry-run --format json --report-unused-disable-directives examples --ext .js,.ts,.vue,.md"
   },
   "devDependencies": {

test/examples.test.js

@@ -1,8 +1,8 @@
-import { describe, expect, test } from "vitest";
 import { spawnSync } from "child_process";
 import { readFileSync } from "fs";
 import { basename } from "path";
 import { format } from "prettier";
+import { describe, expect, test } from "vitest";
 
 // Make snapshots easier to read.
 // Before: `"\\"string\\""`