Add additional file serving tests (vercel#12479)

* Test `static/` file name encoding

* Fix `static/` file name encoding

* Add additional file-serving tests

* bump

Co-authored-by: Joe Haddad <[email protected]>

Author: ijjk

packages/next/server/next-dev-server.ts

@@ -272,9 +272,21 @@ export default class DevServer extends Server {
   }
 
   protected async hasPage(pathname: string): Promise<boolean> {
+    let normalizedPath: string
+
+    try {
+      normalizedPath = normalizePagePath(pathname)
+    } catch (err) {
+      console.error(err)
+      // if normalizing the page fails it means it isn't valid
+      // so it doesn't exist so don't throw and return false
+      // to ensure we return 404 instead of 500
+      return false
+    }
+
     const pageFile = await findPageFile(
       this.pagesDir!,
-      normalizePagePath(pathname),
+      normalizedPath,
       this.nextConfig.pageExtensions
     )
     return !!pageFile

test-file.txt

@@ -0,0 +1 @@
+this is used for traverse testing

test/integration/file-serving/pages/index.js

@@ -0,0 +1 @@
+export default () => 'hi'

test/integration/file-serving/public/hello world.txt

@@ -0,0 +1 @@
+hi

test/integration/file-serving/static/hello world.txt

@@ -0,0 +1 @@
+hi

test/integration/file-serving/test-file.txt

@@ -0,0 +1 @@
+this is used for traverse testing