From 4dd2fbfeb486800a7d5fbc384eb567c3c6532f41 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva13@gmail.com>
Date: Mon, 9 Aug 2021 09:48:39 +0200
Subject: [PATCH] fix(query): empty object with custom stringify

---
 __tests__/router.spec.ts | 19 +++++++++++++++----
 src/router.ts            |  2 +-
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/__tests__/router.spec.ts b/__tests__/router.spec.ts
index 6bf25b089..6522f74e2 100644
--- a/__tests__/router.spec.ts
+++ b/__tests__/router.spec.ts
@@ -149,17 +149,28 @@ describe('Router', () => {
   })
 
   it('allows to customize parseQuery', async () => {
-    const parseQuery = jest.fn()
+    const parseQuery = jest.fn(_ => ({}))
     const { router } = await newRouter({ parseQuery })
-    router.resolve('/foo?bar=baz')
+    const to = router.resolve('/foo?bar=baz')
     expect(parseQuery).toHaveBeenCalledWith('bar=baz')
+    expect(to.query).toEqual({})
   })
 
   it('allows to customize stringifyQuery', async () => {
-    const stringifyQuery = jest.fn()
+    const stringifyQuery = jest.fn(_ => '')
     const { router } = await newRouter({ stringifyQuery })
-    router.resolve({ query: { foo: 'bar' } })
+    const to = router.resolve({ query: { foo: 'bar' } })
     expect(stringifyQuery).toHaveBeenCalledWith({ foo: 'bar' })
+    expect(to.query).toEqual({ foo: 'bar' })
+    expect(to.fullPath).toBe('/')
+  })
+
+  it('creates an empty query with no query', async () => {
+    const stringifyQuery = jest.fn(_ => '')
+    const { router } = await newRouter({ stringifyQuery })
+    const to = router.resolve({ hash: '#a' })
+    expect(stringifyQuery).not.toHaveBeenCalled()
+    expect(to.query).toEqual({})
   })
 
   it('merges meta properties from parent to child', async () => {
diff --git a/src/router.ts b/src/router.ts
index 28b858037..65900c664 100644
--- a/src/router.ts
+++ b/src/router.ts
@@ -542,7 +542,7 @@ export function createRouter(options: RouterOptions): Router {
           // https://github.com/vuejs/vue-router-next/issues/328#issuecomment-649481567
           stringifyQuery === originalStringifyQuery
             ? normalizeQuery(rawLocation.query)
-            : (rawLocation.query as LocationQuery),
+            : ((rawLocation.query || {}) as LocationQuery),
       },
       matchedRoute,
       {