File 0643-ftp-add-tests-for-non-existing-file-folder.patch of Package erlang

From 2c5c611121a17ed2e1c97fa9707e5c03c6026f3d Mon Sep 17 00:00:00 2001
From: Kiko Fernandez-Reyes <kiko@erlang.org>
Date: Mon, 23 Jan 2023 13:47:31 +0100
Subject: [PATCH 3/3] ftp: add tests for non-existing file/folder

---
 lib/ftp/test/ftp_SUITE.erl | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/lib/ftp/test/ftp_SUITE.erl b/lib/ftp/test/ftp_SUITE.erl
index e52c4b1525..cf7ba2927d 100644
--- a/lib/ftp/test/ftp_SUITE.erl
+++ b/lib/ftp/test/ftp_SUITE.erl
@@ -497,17 +497,21 @@ ls() ->
       "\"test\" directory. We assume that ls never fails, since "
       "it's output is meant to be read by humans. "}].
 ls(Config0) ->
-    Config = set_state([reset,{mkdir,"test"}], Config0),
+    TestFileName = "testing-file",
+    Config = set_state([reset,{mkdir,"test"},{mkfile, TestFileName, TestFileName}], Config0),
     Pid = proplists:get_value(ftp, Config),
     {ok, _R1} = ftp:ls(Pid),
     {ok, _R2} = ftp:ls(Pid, id2ftp("test",Config)),
+    {ok, _R3} = ftp:nlist(Pid, id2ftp(TestFileName, Config)),
+    {ok, []} = ftp:nlist(Pid, id2ftp("non-existing-folder",Config)),
+    {ok, []} = ftp:nlist(Pid, id2ftp("test/non-existing-file",Config)),
     %% neither nlist nor ls operates on a directory
     %% they operate on a pathname, which *can* be a
     %% directory, but can also be a filename or a group
     %% of files (including wildcards).
     case proplists:get_value(wildcard_support, Config) of
         true ->
-            {ok, _R3} = ftp:ls(Pid, id2ftp("te*",Config));
+            {ok, _R4} = ftp:ls(Pid, id2ftp("te*",Config));
         _ ->
             ok
     end.
@@ -519,17 +523,21 @@ nlist() ->
                "operating systems. On some it is an error to have an empty "
                "directory."}].
 nlist(Config0) ->
-    Config = set_state([reset,{mkdir,"test"}], Config0),
+    TestFileName = "testing-file",
+    Config = set_state([reset,{mkdir,"test"},{mkfile, TestFileName, TestFileName}], Config0),
     Pid = proplists:get_value(ftp, Config),
     {ok, _R1} = ftp:nlist(Pid),
     {ok, _R2} = ftp:nlist(Pid, id2ftp("test",Config)),
+    {ok, _R3} = ftp:nlist(Pid, id2ftp(TestFileName, Config)),
+    {ok, []} = ftp:nlist(Pid, id2ftp("non-existing-folder",Config)),
+    {ok, []} = ftp:nlist(Pid, id2ftp("test/non-existing-file",Config)),
     %% neither nlist nor ls operates on a directory
     %% they operate on a pathname, which *can* be a
     %% directory, but can also be a filename or a group
     %% of files (including wildcards).
     case proplists:get_value(wildcard_support, Config) of
         true ->
-            {ok, _R3} = ftp:nlist(Pid, id2ftp("te*",Config));
+            {ok, _R4} = ftp:nlist(Pid, id2ftp("te*",Config));
         _ ->
             ok
     end.
-- 
2.35.3