nixos/tests/home-assistant.nix

   1 import ./make-test-python.nix ({ pkgs, ... }:
   2
   3 let
   4   configDir = "/var/lib/foobar";
   5   mqttUsername = "homeassistant";
   6   mqttPassword = "secret";
   7 in {
   8   name = "home-assistant";
   9   meta = with pkgs.stdenv.lib; {
  10     maintainers = with maintainers; [ dotlambda ];
  11   };
  12
  13   nodes.hass = { pkgs, ... }: {
  14     environment.systemPackages = with pkgs; [ mosquitto ];
  15     services.mosquitto = {
  16       enable = true;
  17       users = {
  18         "${mqttUsername}" = {
  19           acl = [ "pattern readwrite #" ];
  20           password = mqttPassword;
  21         };
  22       };
  23     };
  24     services.home-assistant = {
  25       inherit configDir;
  26       enable = true;
  27       config = {
  28         homeassistant = {
  29           name = "Home";
  30           time_zone = "UTC";
  31           latitude = "0.0";
  32           longitude = "0.0";
  33           elevation = 0;
  34         };
  35         frontend = {};
  36         mqtt = {
  37           broker = "127.0.0.1";
  38           username = mqttUsername;
  39           password = mqttPassword;
  40         };
  41         binary_sensor = [{
  42           platform = "mqtt";
  43           state_topic = "home-assistant/test";
  44           payload_on = "let_there_be_light";
  45           payload_off = "off";
  46         }];
  47         logger = {
  48           default = "info";
  49           logs."homeassistant.components.mqtt" = "debug";
  50         };
  51       };
  52       lovelaceConfig = {
  53         title = "My Awesome Home";
  54         views = [{
  55           title = "Example";
  56           cards = [{
  57             type = "markdown";
  58             title = "Lovelace";
  59             content = "Welcome to your **Lovelace UI**.";
  60           }];
  61         }];
  62       };
  63       lovelaceConfigWritable = true;
  64     };
  65   };
  66
  67   testScript = ''
  68     start_all()
  69     hass.wait_for_unit("home-assistant.service")
  70     with subtest("Check that YAML configuration file is in place"):
  71         hass.succeed("test -L ${configDir}/configuration.yaml")
  72     with subtest("lovelace config is copied because lovelaceConfigWritable = true"):
  73         hass.succeed("test -f ${configDir}/ui-lovelace.yaml")
  74     with subtest("Check that Home Assistant's web interface and API can be reached"):
  75         hass.wait_for_open_port(8123)
  76         hass.succeed("curl --fail http://localhost:8123/lovelace")
  77     with subtest("Toggle a binary sensor using MQTT"):
  78         # wait for broker to become available
  79         hass.wait_until_succeeds(
  80             "mosquitto_sub -V mqttv311 -t home-assistant/test -u ${mqttUsername} -P '${mqttPassword}' -W 1 -t '*'"
  81         )
  82         hass.succeed(
  83             "mosquitto_pub -V mqttv311 -t home-assistant/test -u ${mqttUsername} -P '${mqttPassword}' -m let_there_be_light"
  84         )
  85     with subtest("Print log to ease debugging"):
  86         output_log = hass.succeed("cat ${configDir}/home-assistant.log")
  87         print("\n### home-assistant.log ###\n")
  88         print(output_log + "\n")
  89
  90     with subtest("Check that no errors were logged"):
  91         assert "ERROR" not in output_log
  92
  93     # example line: 2020-06-20 10:01:32 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on home-assistant/test: b'let_there_be_light'
  94     with subtest("Check we received the mosquitto message"):
  95         assert "let_there_be_light" in output_log
  96   '';
  97 })