fix go fs test

tests/go-e2e-dir/main.go

@@ -15,13 +15,20 @@ func main() {
 		os.Exit(-1)
 	}
 	fmt.Printf("DirEntries: %s\n", dir)
+
 	// `os.ReadDir` does not include `.` and `..`.
-	if len(dir) != 2 {
+	if len(dir) < 2 {
 		os.Exit(-1)
 	}
-	// `os.ReadDir` sorts the result by file name.
-	if dir[0].Name() != "app.py" || dir[1].Name() != "test.txt" {
-		os.Exit(-1)
+
+	// Iterate over the files in this dir, exiting if it's not an expected file name.
+	for i := 0; i < len(dir); i++ {
+		dirName := dir[i].Name()
+
+		if dirName != "app.py" && dirName != "test.txt" && dirName != "file.local" && dirName != "file.not-found" && dirName != "file.read-only" && dirName != "file.read-write" {
+			os.Exit(-1)
+		}
+
 	}
 
 	err = os.Mkdir("/app/test_mkdir", 0755)