Add failing test for re-calling getStaticProps after updating query

Author: ijjk

test/integration/prerender/pages/something.js

@@ -20,7 +20,7 @@ export default ({ world, time, params, random }) => {
     <>
       <p>hello: {world}</p>
       <span>time: {time}</span>
-      <div>{random}</div>
+      <div id="random">{random}</div>
       <div id="params">{JSON.stringify(params)}</div>
       <div id="query">{JSON.stringify(useRouter().query)}</div>
       <Link href="/">

test/integration/prerender/test/index.test.js

@@ -340,6 +340,23 @@ const runTests = (dev = false) => {
         await fs.writeFile(indexPage, origContent)
       }
     })
+
+    it('should not re-call getStaticProps when updating query', async () => {
+      const browser = await webdriver(appPort, '/something?hello=world')
+      await waitFor(2000)
+
+      const query = await browser.elementByCss('#query').text()
+      expect(JSON.parse(query)).toEqual({ hello: 'world' })
+
+      const {
+        props: {
+          pageProps: { random: initialRandom },
+        },
+      } = await browser.eval('window.__NEXT_DATA__')
+
+      const curRandom = await browser.elementByCss('#random').text()
+      expect(curRandom).toBe(initialRandom + '')
+    })
   } else {
     it('should should use correct caching headers for a no-revalidate page', async () => {
       const initialRes = await fetchViaHTTP(appPort, '/something')