Turbopack build: Fix preload-viewport tests (vercel#67589)

- Skip a test that only applies to webpack as it relies on the chunk
loading
- Updated a test to look for the scheme that works in both Turbopack and
Webpack
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Author: timneutkens

test/integration/preload-viewport/test/index.test.js

@@ -410,33 +410,38 @@ describe('Prefetching Links in viewport', () => {
         expect(found).toBe(false)
       })
 
-      it('should not prefetch already loaded scripts', async () => {
-        const browser = await webdriver(appPort, '/')
+      // Turbopack handling of chunks is different, by default it does not include a script tag for the page itself.
+      ;(process.env.TURBOPACK ? it.skip : it)(
+        'should not prefetch already loaded scripts',
+        async () => {
+          const browser = await webdriver(appPort, '/')
 
-        const scriptSrcs = await browser.eval(`(function() {
+          const scriptSrcs = await browser.eval(`(function() {
       return Array.from(document.querySelectorAll('script'))
         .map(function(el) {
           return el.src && new URL(el.src).pathname
         }).filter(Boolean)
     })()`)
 
-        await browser.eval('next.router.prefetch("/")')
+          await browser.eval('next.router.prefetch("/")')
 
-        const linkHrefs = await browser.eval(`(function() {
+          const linkHrefs = await browser.eval(`(function() {
       return Array.from(document.querySelectorAll('link'))
         .map(function(el) {
           return el.href && new URL(el.href).pathname
         }).filter(Boolean)
     })()`)
 
-        console.log({ linkHrefs, scriptSrcs })
-        expect(scriptSrcs.some((src) => src.includes('pages/index-'))).toBe(
-          true
-        )
-        expect(linkHrefs.some((href) => href.includes('pages/index-'))).toBe(
-          false
-        )
-      })
+          // eslint-disable-next-line jest/no-standalone-expect
+          expect(scriptSrcs.some((src) => src.includes('pages/index-'))).toBe(
+            true
+          )
+          // eslint-disable-next-line jest/no-standalone-expect
+          expect(linkHrefs.some((href) => href.includes('pages/index-'))).toBe(
+            false
+          )
+        }
+      )
 
       it('should not duplicate prefetches', async () => {
         const browser = await webdriver(appPort, '/multi-prefetch')
@@ -454,7 +459,7 @@ describe('Prefetching Links in viewport', () => {
         expect(hrefs).toEqual([...new Set(hrefs)])
 
         // Verify encoding
-        expect(hrefs.some((e) => e.includes(`%5Bhello%5D-`))).toBe(true)
+        expect(hrefs.some((e) => e.includes(`%5Bhello%5D`))).toBe(true)
       })
 
       it('should not re-prefetch for an already prefetched page', async () => {

test/turbopack-build-tests-manifest.json

@@ -13662,13 +13662,13 @@
         "Prefetching Links in viewport production mode should prefetch with link in viewport on scroll",
         "Prefetching Links in viewport production mode should prefetch with link in viewport onload",
         "Prefetching Links in viewport production mode should prefetch with link in viewport when href changes",
-        "Prefetching Links in viewport production mode should prefetch with non-bot UA"
-      ],
-      "failed": [
-        "Prefetching Links in viewport production mode should not prefetch already loaded scripts",
+        "Prefetching Links in viewport production mode should prefetch with non-bot UA",
         "Prefetching Links in viewport production mode should not duplicate prefetches"
       ],
-      "pending": [],
+      "failed": [],
+      "pending": [
+        "Prefetching Links in viewport production mode should not prefetch already loaded scripts"
+      ],
       "flakey": [],
       "runtimeError": false
     },