test: middleware/error

lib/router.js

@@ -87,6 +87,9 @@ router.get('/', async (ctx) => {
 });
 
 router.get('/test/:id', (ctx) => {
+    if (ctx.params.id === '0') {
+        throw Error('Error test');
+    }
     const item = [];
     for (let i = 1; i < 6; i++) {
         item.push({