pyrox.dev
1# Miscellaneous small tests that don't warrant their own VM run.
2
3{ lib, pkgs, ... }:
4let
5 foo = pkgs.writeText "foo" "Hello World";
6in
7{
8 name = "misc";
9 meta.maintainers = with lib.maintainers; [ eelco ];
10
11 nodes.machine =
12 { lib, ... }:
13 {
14 swapDevices = lib.mkOverride 0 [
15 {
16 device = "/root/swapfile";
17 size = 128;
18 }
19 ];
20 environment.variables.EDITOR = lib.mkOverride 0 "emacs";
21 systemd.tmpfiles.rules = [ "d /tmp 1777 root root 10d" ];
22 systemd.tmpfiles.settings."10-test"."/tmp/somefile".d = { };
23 virtualisation.fileSystems = {
24 "/tmp2" = {
25 fsType = "tmpfs";
26 options = [
27 "mode=1777"
28 "noauto"
29 ];
30 };
31 # Tests https://discourse.nixos.org/t/how-to-make-a-derivations-executables-have-the-s-permission/8555
32 "/user-mount/point" = {
33 device = "/user-mount/source";
34 fsType = "none";
35 options = [
36 "bind"
37 "rw"
38 "user"
39 "noauto"
40 ];
41 };
42 "/user-mount/denied-point" = {
43 device = "/user-mount/denied-source";
44 fsType = "none";
45 options = [
46 "bind"
47 "rw"
48 "noauto"
49 ];
50 };
51 };
52 systemd.automounts = lib.singleton {
53 wantedBy = [ "multi-user.target" ];
54 where = "/tmp2";
55 };
56 users.users.sybil = {
57 isNormalUser = true;
58 group = "wheel";
59 };
60 users.users.alice = {
61 isNormalUser = true;
62 };
63 security.sudo = {
64 enable = true;
65 wheelNeedsPassword = false;
66 };
67 boot.kernel.sysctl."vm.swappiness" = 1;
68 boot.kernelParams = [ "vsyscall=emulate" ];
69 system.extraDependencies = [ foo ];
70 };
71
72 testScript = ''
73 with subtest("nixos-version"):
74 machine.succeed("[ `nixos-version | wc -w` = 2 ]")
75
76 with subtest("nixos-rebuild"):
77 assert "NixOS module" in machine.succeed("nixos-rebuild --help")
78
79 with subtest("Sanity check for uid/gid assignment"):
80 assert "4" == machine.succeed("id -u messagebus").strip()
81 assert "4" == machine.succeed("id -g messagebus").strip()
82 assert "users:x:100:" == machine.succeed("getent group users").strip()
83
84 with subtest("Regression test for GMP aborts on QEMU."):
85 machine.succeed("expr 1 + 2")
86
87 with subtest("the swap file got created"):
88 machine.wait_for_unit("root-swapfile.swap")
89 machine.succeed("ls -l /root/swapfile | grep 134217728")
90
91 with subtest("whether kernel.poweroff_cmd is set"):
92 machine.succeed('[ -x "$(cat /proc/sys/kernel/poweroff_cmd)" ]')
93
94 with subtest("whether the io cgroupv2 controller is properly enabled"):
95 machine.succeed("grep -q '\\bio\\b' /sys/fs/cgroup/cgroup.controllers")
96
97 with subtest("whether we have a reboot record in wtmp"):
98 machine.shutdown
99 machine.wait_for_unit("multi-user.target")
100 machine.succeed("last | grep reboot >&2")
101
102 with subtest("whether we can override environment variables"):
103 machine.succeed('[ "$EDITOR" = emacs ]')
104
105 with subtest("whether hostname (and by extension nss_myhostname) works"):
106 assert "machine" == machine.succeed("hostname").strip()
107 assert "machine" == machine.succeed("hostname -s").strip()
108
109 with subtest("whether systemd-udevd automatically loads modules for our hardware"):
110 machine.succeed("systemctl start systemd-udev-settle.service")
111 machine.wait_for_unit("systemd-udev-settle.service")
112 assert "mousedev" in machine.succeed("lsmod")
113
114 with subtest("whether systemd-tmpfiles-clean works"):
115 machine.succeed(
116 "touch /tmp/foo", "systemctl start systemd-tmpfiles-clean", "[ -e /tmp/foo ]"
117 )
118 # move into the future
119 machine.succeed(
120 'date -s "@$(($(date +%s) + 1000000))"',
121 "systemctl start systemd-tmpfiles-clean",
122 )
123 machine.fail("[ -e /tmp/foo ]")
124
125 with subtest("whether systemd-tmpfiles settings works"):
126 machine.succeed("[ -e /tmp/somefile ]")
127
128 with subtest("/etc/mtab"):
129 assert "/proc/mounts" == machine.succeed("readlink --no-newline /etc/mtab")
130
131 with subtest("whether automounting works"):
132 machine.fail("grep '/tmp2 tmpfs' /proc/mounts")
133 machine.succeed("touch /tmp2/x")
134 machine.succeed("grep '/tmp2 tmpfs' /proc/mounts")
135
136 with subtest(
137 "Whether mounting by a user is possible with the `user` option in fstab (#95444)"
138 ):
139 machine.succeed("mkdir -p /user-mount/source")
140 machine.succeed("touch /user-mount/source/file")
141 machine.succeed("chmod -R a+Xr /user-mount/source")
142 machine.succeed("mkdir /user-mount/point")
143 machine.succeed("chown alice:users /user-mount/point")
144 machine.succeed("su - alice -c 'mount /user-mount/point'")
145 machine.succeed("su - alice -c 'ls /user-mount/point/file'")
146 with subtest(
147 "Whether mounting by a user is denied without the `user` option in fstab"
148 ):
149 machine.succeed("mkdir -p /user-mount/denied-source")
150 machine.succeed("touch /user-mount/denied-source/file")
151 machine.succeed("chmod -R a+Xr /user-mount/denied-source")
152 machine.succeed("mkdir /user-mount/denied-point")
153 machine.succeed("chown alice:users /user-mount/denied-point")
154 machine.fail("su - alice -c 'mount /user-mount/denied-point'")
155
156 with subtest("shell-vars"):
157 machine.succeed('[ -n "$NIX_PATH" ]')
158
159 with subtest("Test sysctl"):
160 machine.wait_for_unit("systemd-sysctl.service")
161 assert "1" == machine.succeed("sysctl -ne vm.swappiness").strip()
162 machine.execute("sysctl vm.swappiness=60")
163 assert "60" == machine.succeed("sysctl -ne vm.swappiness").strip()
164
165 with subtest("Test boot parameters"):
166 assert "vsyscall=emulate" in machine.succeed("cat /proc/cmdline")
167 '';
168}