1 files changed, 33 insertions, 0 deletions
diff --git a/nixos/tests/iftop.nix b/nixos/tests/iftop.nix
new file mode 100644
index 00000000000..6d0090b3946
--- /dev/null
+++ b/nixos/tests/iftop.nix
@@ -0,0 +1,33 @@
+import ./make-test-python.nix ({ pkgs, lib, ... }:
+
+with lib;
+
+{
+  name = "iftop";
+  meta.maintainers = with pkgs.lib.maintainers; [ ma27 ];
+
+  nodes = {
+    withIftop = {
+      imports = [ ./common/user-account.nix ];
+      programs.iftop.enable = true;
+    };
+    withoutIftop = {
+      imports = [ ./common/user-account.nix ];
+      environment.systemPackages = [ pkgs.iftop ];
+    };
+  };
+
+  testScript = ''
+    with subtest("machine with iftop enabled"):
+        withIftop.wait_for_unit("default.target")
+        # limit to eth1 (eth0 is the test driver's control interface)
+        # and don't try name lookups
+        withIftop.succeed("su -l alice -c 'iftop -t -s 1 -n -i eth1'")
+
+    with subtest("machine without iftop"):
+        withoutIftop.wait_for_unit("default.target")
+        # check that iftop is there but user alice lacks capabilitie
+        withoutIftop.succeed("iftop -t -s 1 -n -i eth1")
+        withoutIftop.fail("su -l alice -c 'iftop -t -s 1 -n -i eth1'")
+  '';
+})