Add tests for router.push(...)

test/e2e/app-dir/navigation/app/nested-relative-query-and-hash/client-component.js

@@ -0,0 +1,20 @@
+'use client'
+
+import { useRouter } from 'next/navigation'
+
+export function RouterPushButton() {
+  const router = useRouter()
+
+  return (
+    <h3 id="h3">
+      <button
+        id="button-to-h3-hash-only"
+        onClick={() => {
+          router.push('#h3')
+        }}
+      >
+        To #h3, hash only
+      </button>
+    </h3>
+  )
+}

test/e2e/app-dir/navigation/app/nested-relative-query-and-hash/page.js

@@ -1,4 +1,5 @@
 import Link from 'next/link'
+import { RouterPushButton } from './client-component'
 
 export default function Page() {
   return (
@@ -20,6 +21,8 @@ export default function Page() {
           To #h2, with both relative hash and query
         </Link>
       </h2>
+
+      <RouterPushButton />
     </>
   )
 }

test/e2e/app-dir/navigation/navigation.test.ts

@@ -69,6 +69,13 @@ createNextDescribe(
         await check(() => browser.url(), next.url + pathname + '#h1')
       })
 
+      it('should work with a hash-only `router.push(...)`', async () => {
+        const browser = await next.browser(pathname)
+        await browser.elementByCss('#button-to-h3-hash-only').click()
+
+        await check(() => browser.url(), next.url + pathname + '#h3')
+      })
+
       it('should work with a query-only href', async () => {
         const browser = await next.browser(pathname)
         await browser.elementByCss('#link-to-dummy-query').click()
@@ -96,6 +103,13 @@ createNextDescribe(
           () => browser.url(),
           next.url + pathname + '?foo=1&bar=2#h1'
         )
+
+        // Update hash again via `router.push(...)`
+        await browser.elementByCss('#button-to-h3-hash-only').click()
+        await check(
+          () => browser.url(),
+          next.url + pathname + '?foo=1&bar=2#h3'
+        )
       })
     })