nixos/tests: add osrm-backend test

nixos/tests/all-tests.nix

@@ -158,6 +158,7 @@ in
   opensmtpd = handleTest ./opensmtpd.nix {};
   openssh = handleTest ./openssh.nix {};
   osquery = handleTest ./osquery.nix {};
+  osrm-backend = handleTest ./osrm-backend.nix {};
   ostree = handleTest ./ostree.nix {};
   pam-oath-login = handleTest ./pam-oath-login.nix {};
   peerflix = handleTest ./peerflix.nix {};

nixos/tests/osrm-backend.nix

@@ -0,0 +1,53 @@
+import ./make-test.nix ({ pkgs, lib, ... }:
+let
+  port = 5000;
+in {
+  name = "osrm-backend";
+  meta.maintainers = [ lib.maintainers.erictapen ];
+
+  machine = { config, pkgs, ... }:{
+
+    services.osrm = {
+      enable = true;
+      inherit port;
+      dataFile = let
+        filename = "monaco";
+        osrm-data = pkgs.stdenv.mkDerivation {
+          name = "osrm-data";
+
+          buildInputs = [ pkgs.osrm-backend ];
+
+          # This is a pbf file of monaco, downloaded at 2019-01-04 from
+          # http://download.geofabrik.de/europe/monaco-latest.osm.pbf
+          # as apparently no provider of OSM files guarantees immutability,
+          # this is hosted as a gist on GitHub.
+          src = pkgs.fetchgit {
+            url = "https://gist.github.com/erictapen/01e39f73a6c856eac53ba809a94cdb83";
+            rev = "9b1ff0f24deb40e5cf7df51f843dbe860637b8ce";
+            sha256 = "1scqhmrfnpwsy5i2a9jpggqnvfgj4hv9p4qyvc79321pzkbv59nx";
+          };
+
+          buildCommand = ''
+            cp $src/${filename}.osm.pbf .
+            ${pkgs.osrm-backend}/bin/osrm-extract -p ${pkgs.osrm-backend}/share/osrm/profiles/car.lua ${filename}.osm.pbf
+            ${pkgs.osrm-backend}/bin/osrm-partition ${filename}.osrm
+            ${pkgs.osrm-backend}/bin/osrm-customize ${filename}.osrm
+            mkdir -p $out
+            cp ${filename}* $out/
+          '';
+        };
+      in "${osrm-data}/${filename}.osrm";
+    };
+
+    environment.systemPackages = [ pkgs.jq ];
+  };
+
+  testScript = let
+    query = "http://localhost:${toString port}/route/v1/driving/7.41720,43.73304;7.42463,43.73886?steps=true";
+  in ''
+    $machine->waitForUnit("osrm.service");
+    $machine->waitForOpenPort(${toString port});
+    $machine->succeed("curl --silent '${query}' | jq .waypoints[0].name | grep -F 'Boulevard Rainier III'");
+    $machine->succeed("curl --silent '${query}' | jq .waypoints[1].name | grep -F 'Avenue de la Costa'");
+  '';
+})