From 4d939ef6ceb2db19382848471d13685ee1607a8a Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 8 Apr 2020 09:44:33 +0200
Subject: [PATCH] runtests: provide nicer errormsg when protocol "dump" file is
 empty

---
 tests/runtests.pl | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tests/runtests.pl b/tests/runtests.pl
index 88a8b7f7f..795759544 100755
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -4122,6 +4122,13 @@ sub singletest {
             }
         }
 
+        if(($out[0] eq "") && $protstrip[0]) {
+            logmsg "\n $testnum: protocol FAILED!\n".
+                " There was no content at all in the file $SERVERIN.\n".
+                " Server glitch? Total curl failure?\n";
+            return $errorreturncode;
+        }
+
         $res = compare($testnum, $testname, "protocol", \@out, \@protstrip);
         if($res) {
             return $errorreturncode;