From 992e2ed0cf5d1e15eab1c6c523403a7fb7d3136a Mon Sep 17 00:00:00 2001
From: Alexander Bantyev <balsoft@balsoft.ru>
Date: Wed, 17 May 2023 11:34:45 +0400
Subject: Add a test for ControlMaster

---
 tests/nixos/nix-copy.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/nixos/nix-copy.nix b/tests/nixos/nix-copy.nix
index ee8b77100..16c477bf9 100644
--- a/tests/nixos/nix-copy.nix
+++ b/tests/nixos/nix-copy.nix
@@ -23,6 +23,12 @@ in {
           nix.settings.substituters = lib.mkForce [ ];
           nix.settings.experimental-features = [ "nix-command" ];
           services.getty.autologinUser = "root";
+          programs.ssh.extraConfig = ''
+            Host *
+                ControlMaster auto
+                ControlPath ~/.ssh/master-%h:%r@%n:%p
+                ControlPersist 15m
+          '';
         };
 
       server =
@@ -62,6 +68,10 @@ in {
     client.wait_for_text("done")
     server.succeed("nix-store --check-validity ${pkgA}")
 
+    # Check that ControlMaster is working
+    client.send_chars("nix copy --to ssh://server ${pkgA} >&2; echo done\n")
+    client.wait_for_text("done")
+
     client.copy_from_host("key", "/root/.ssh/id_ed25519")
     client.succeed("chmod 600 /root/.ssh/id_ed25519")
 
-- 
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