mirror of
https://github.com/NixOS/nixpkgs.git
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4f0dadbf38
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.
Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.
A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.
This commit was automatically created and can be verified using
nix-build a08b3a4d19.tar.gz \
--argstr baseRev b32a094368
result/bin/apply-formatting $NIXPKGS_PATH
181 lines
7.2 KiB
Nix
181 lines
7.2 KiB
Nix
import ./make-test-python.nix (
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{ pkgs, lib, ... }:
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{
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name = "turbovnc-headless-server";
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meta = {
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maintainers = with lib.maintainers; [ nh2 ];
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};
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nodes.machine =
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{ pkgs, ... }:
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{
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environment.systemPackages = with pkgs; [
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mesa-demos
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procps # for `pkill`, `pidof` in the test
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scrot # for screenshotting Xorg
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turbovnc
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];
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programs.turbovnc.ensureHeadlessSoftwareOpenGL = true;
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networking.firewall = {
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# Reject instead of drop, for failures instead of hangs.
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rejectPackets = true;
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allowedTCPPorts = [
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5900 # VNC :0, for seeing what's going on in the server
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];
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};
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# So that we can ssh into the VM, see e.g.
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# https://nixos.org/manual/nixos/stable/#sec-nixos-test-port-forwarding
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services.openssh.enable = true;
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users.mutableUsers = false;
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# `test-instrumentation.nix` already sets an empty root password.
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# The following have to all be set to allow an empty SSH login password.
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services.openssh.settings.PermitRootLogin = "yes";
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services.openssh.settings.PermitEmptyPasswords = "yes";
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security.pam.services.sshd.allowNullPassword = true; # the default `UsePam yes` makes this necessary
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};
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testScript = ''
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def wait_until_terminated_or_succeeds(
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termination_check_shell_command,
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success_check_shell_command,
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get_detail_message_fn,
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retries=60,
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retry_sleep=0.5,
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):
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def check_success():
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command_exit_code, _output = machine.execute(success_check_shell_command)
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return command_exit_code == 0
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for _ in range(retries):
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exit_check_exit_code, _output = machine.execute(termination_check_shell_command)
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is_terminated = exit_check_exit_code != 0
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if is_terminated:
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if check_success():
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return
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else:
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details = get_detail_message_fn()
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raise Exception(
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f"termination check ({termination_check_shell_command}) triggered without command succeeding ({success_check_shell_command}); details: {details}"
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)
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else:
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if check_success():
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return
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import time
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time.sleep(retry_sleep)
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if not check_success():
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details = get_detail_message_fn()
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raise Exception(
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f"action timed out ({success_check_shell_command}); details: {details}"
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)
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# Below we use the pattern:
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# (cmd | tee stdout.log) 3>&1 1>&2 2>&3 | tee stderr.log
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# to capture both stderr and stdout while also teeing them, see:
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# https://unix.stackexchange.com/questions/6430/how-to-redirect-stderr-and-stdout-to-different-files-and-also-display-in-termina/6431#6431
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# Starts headless VNC server, backgrounding it.
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def start_xvnc():
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xvnc_command = " ".join(
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[
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"Xvnc",
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":0",
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"-iglx",
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"-auth /root/.Xauthority",
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"-geometry 1240x900",
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"-depth 24",
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"-rfbwait 5000",
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"-deferupdate 1",
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"-verbose",
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"-securitytypes none",
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# We don't enforce localhost listening such that we
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# can connect from outside the VM using
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# env QEMU_NET_OPTS=hostfwd=tcp::5900-:5900 $(nix-build nixos/tests/turbovnc-headless-server.nix -A driver)/bin/nixos-test-driver
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# for testing purposes, and so that we can in the future
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# add another test case that connects the TurboVNC client.
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# "-localhost",
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]
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)
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machine.execute(
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# Note trailing & for backgrounding.
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f"({xvnc_command} | tee /tmp/Xvnc.stdout) 3>&1 1>&2 2>&3 | tee /tmp/Xvnc.stderr >&2 &",
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)
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# Waits until the server log message that tells us that GLX is ready
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# (requires `-verbose` above), avoiding screenshoting racing below.
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def wait_until_xvnc_glx_ready():
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machine.wait_until_succeeds("test -f /tmp/Xvnc.stderr")
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wait_until_terminated_or_succeeds(
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termination_check_shell_command="pidof Xvnc",
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success_check_shell_command="grep 'GLX: Initialized DRISWRAST' /tmp/Xvnc.stderr",
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get_detail_message_fn=lambda: "Contents of /tmp/Xvnc.stderr:\n"
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+ machine.succeed("cat /tmp/Xvnc.stderr"),
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)
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# Checks that we detect glxgears failing when
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# `LIBGL_DRIVERS_PATH=/nonexistent` is set
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# (in which case software rendering should not work).
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def test_glxgears_failing_with_bad_driver_path():
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machine.execute(
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# Note trailing & for backgrounding.
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"(env DISPLAY=:0 LIBGL_DRIVERS_PATH=/nonexistent glxgears -info | tee /tmp/glxgears-should-fail.stdout) 3>&1 1>&2 2>&3 | tee /tmp/glxgears-should-fail.stderr >&2 &"
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)
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machine.wait_until_succeeds("test -f /tmp/glxgears-should-fail.stderr")
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wait_until_terminated_or_succeeds(
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termination_check_shell_command="pidof glxgears",
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success_check_shell_command="grep 'MESA-LOADER: failed to open swrast' /tmp/glxgears-should-fail.stderr",
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get_detail_message_fn=lambda: "Contents of /tmp/glxgears-should-fail.stderr:\n"
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+ machine.succeed("cat /tmp/glxgears-should-fail.stderr"),
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)
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machine.wait_until_fails("pidof glxgears")
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# Starts glxgears, backgrounding it. Waits until it prints the `GL_RENDERER`.
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# Does not quit glxgears.
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def test_glxgears_prints_renderer():
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machine.execute(
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# Note trailing & for backgrounding.
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"(env DISPLAY=:0 glxgears -info | tee /tmp/glxgears.stdout) 3>&1 1>&2 2>&3 | tee /tmp/glxgears.stderr >&2 &"
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)
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machine.wait_until_succeeds("test -f /tmp/glxgears.stderr")
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wait_until_terminated_or_succeeds(
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termination_check_shell_command="pidof glxgears",
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success_check_shell_command="grep 'GL_RENDERER' /tmp/glxgears.stdout",
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get_detail_message_fn=lambda: "Contents of /tmp/glxgears.stderr:\n"
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+ machine.succeed("cat /tmp/glxgears.stderr"),
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)
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with subtest("Start Xvnc"):
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start_xvnc()
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wait_until_xvnc_glx_ready()
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with subtest("Ensure bad driver path makes glxgears fail"):
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test_glxgears_failing_with_bad_driver_path()
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with subtest("Run 3D application (glxgears)"):
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test_glxgears_prints_renderer()
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# Take screenshot; should display the glxgears.
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machine.succeed("scrot --display :0 /tmp/glxgears.png")
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# Copy files down.
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machine.copy_from_vm("/tmp/glxgears.png")
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machine.copy_from_vm("/tmp/glxgears.stdout")
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machine.copy_from_vm("/tmp/glxgears-should-fail.stdout")
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machine.copy_from_vm("/tmp/glxgears-should-fail.stderr")
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machine.copy_from_vm("/tmp/Xvnc.stdout")
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machine.copy_from_vm("/tmp/Xvnc.stderr")
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'';
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}
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)
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