test: add basic e2e build case

Author: PeachScript

examples/normal/docs/index.md

@@ -3,7 +3,7 @@
 代码块 demo
 
 ```jsx
-import react from 'React';
+import react from 'react';
 
 export default () => <>Hello first code block demo!</>;
 ```

examples/normal/package.json

@@ -7,5 +7,8 @@
   },
   "dependencies": {
     "react": "^18.2.0"
+  },
+  "devDependencies": {
+    "typescript": "~4.7.4"
   }
 }

pnpm-lock.yaml

@@ -0,0 +1,10 @@
+import path from 'path';
+import { execa } from 'umi/plugin-utils';
+
+test('build', () => {
+  const bin = require.resolve('../bin/dumi');
+
+  execa.execaSync('node', [bin, 'build'], {
+    cwd: path.join(__dirname, '../examples/normal'),
+  });
+});