Fix nested object comparison for queries (#1425)

Fix #1421

Author: posva

src/util/route.js

@@ -79,7 +79,15 @@ function isObjectEqual (a = {}, b = {}): boolean {
   if (aKeys.length !== bKeys.length) {
     return false
   }
-  return aKeys.every(key => String(a[key]) === String(b[key]))
+  return aKeys.every(key => {
+    const aVal = a[key]
+    const bVal = b[key]
+    // check nested equality
+    if (typeof aVal === 'object' && typeof bVal === 'object') {
+      return isObjectEqual(aVal, bVal)
+    }
+    return String(aVal) === String(bVal)
+  })
 }
 
 export function isIncludedRoute (current: Route, target: Route): boolean {

test/unit/specs/route.spec.js

@@ -30,6 +30,23 @@ describe('Route utils', () => {
       }
       expect(isSameRoute(a, b)).toBe(true)
     })
+
+    it('nested query', () => {
+      const a = {
+        path: '/abc',
+        query: { foo: { bar: 'bar' }, arr: [1, 2] }
+      }
+      const b = {
+        path: '/abc',
+        query: { arr: [1, 2], foo: { bar: 'bar' } }
+      }
+      const c = {
+        path: '/abc',
+        query: { arr: [1, 2], foo: { bar: 'not bar' } }
+      }
+      expect(isSameRoute(a, b)).toBe(true)
+      expect(isSameRoute(a, c)).toBe(false)
+    })
   })
 
   describe('isIncludedRoute', () => {