failing test for ifwait

tests/ci.nix

@@ -8,4 +8,5 @@
   min-copy-closure =  import ./min-copy-closure/test.nix;
   fennel = import ./fennel/test.nix;
   tftpboot = import ./tftpboot/test.nix;
+  updown = import ./updown/test.nix;
 }

tests/updown/configuration.nix

@@ -0,0 +1,55 @@
+{ config, pkgs, lib, ... } :
+let
+  inherit (pkgs.liminix.services) bundle oneshot longrun;
+  inherit (pkgs) serviceFns;
+  # EDIT: you can pick your preferred RFC1918 address space
+  # for NATted connections, if you don't like this one.
+  ipv4LocalNet = "10.8.0";
+  svc = config.system.service;
+
+in rec {
+  imports = [
+    ../../modules/bridge
+    ../../modules/dhcp6c
+    ../../modules/dnsmasq
+    ../../modules/firewall
+    ../../modules/hostapd
+    ../../modules/network
+    ../../modules/ssh
+    ../../modules/vlan
+    ../../modules/wlan.nix
+  ];
+  rootfsType = "jffs2";
+  hostname = "updown";
+
+  services.int = svc.network.address.build {
+    interface = svc.bridge.primary.build { ifname = "int"; };
+    family = "inet"; address = "${ipv4LocalNet}.1"; prefixLength = 16;
+  };
+
+  services.bridge =  svc.bridge.members.build {
+    primary = services.int;
+    members = with config.hardware.networkInterfaces;
+      [ lan ];
+  };
+
+  services.sshd = svc.ssh.build { };
+
+  # users.root = {
+  #   # EDIT: choose a root password and then use
+  #   # "mkpasswd -m sha512crypt" to determine the hash.
+  #   # It should start wirh $6$.
+  #   passwd = "$6$6HG7WALLQQY1LQDE$428cnouMJ7wVmyK9.dF1uWs7t0z9ztgp3MHvN5bbeo0M4Kqg/u2ThjoSHIjCEJQlnVpDOaEKcOjXAlIClHWN21";
+  #   openssh.authorizedKeys.keys = [
+  #     # EDIT: you can add your ssh pubkey here
+  #     # "ssh-rsa AAAAB3NzaC1....H6hKd user@example.com";
+  #   ];
+  # };
+
+  defaultProfile.packages = with pkgs; [
+    min-collect-garbage
+#    strace
+    #    ethtool
+    tcpdump
+  ];
+}

tests/updown/script.expect

@@ -0,0 +1,29 @@
+set timeout 10
+
+spawn socat unix-connect:vm/monitor -
+set monitor_id $spawn_id
+
+expect "(qemu)"
+send "set_link virtio-net-pci.1 off\n"
+expect "(qemu)"
+send "set_link virtio-net-pci.0 off\n"
+expect "(qemu)"
+send "c\r\n"
+spawn socat unix-connect:vm/console -
+set console_id $spawn_id
+
+expect "BusyBox" 
+expect "#" { send "PS1=RE\\ADY_\\ \r" }
+expect "READY_" { send "sleep 3\r" }
+expect "READY_" { send "ip link\r" }
+expect "READY_" { send "cat /sys/class/net/lan/operstate\r" }
+expect {
+  "down" { }
+  "up" { exit 1 }
+}
+expect "READY_" { send "s6-rc -a -u change\r"  }
+expect {
+  "unable to take locks" { exit 1 }
+  "READY_" { send "hostname\r" }
+}
+expect "updown"

tests/updown/test.nix

@@ -0,0 +1,19 @@
+{
+  liminix
+, nixpkgs
+}:
+let img = (import liminix {
+      device = import "${liminix}/devices/qemu/";
+      liminix-config = ./configuration.nix;
+    }).outputs.vmroot;
+    pkgs = import <nixpkgs> { overlays = [(import ../../overlay.nix)]; };
+in pkgs.runCommand "check" {
+  nativeBuildInputs = with pkgs; [
+    expect
+    socat
+  ] ;
+} ''
+mkdir vm
+${img}/run.sh --flag -S --background ./vm
+expect ${./script.expect} | tee $out
+''