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nixos/switch-test: Test the unit file parser and reloads

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This commit is contained in:
Janne Heß 2022-01-29 23:01:48 +01:00
parent b5b3ee4f78
commit 1c1f8c59e1
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1 changed files with 241 additions and 6 deletions
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247
nixos/tests/switch-test.nix
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@ -18,6 +18,7 @@ import ./make-test-python.nix ({ pkgs, ...} : {
Type = "oneshot";
RemainAfterExit = true;
ExecStart = "${pkgs.coreutils}/bin/true";
ExecReload = "${pkgs.coreutils}/bin/true";
};
};
};
@ -70,6 +71,80 @@ import ./make-test-python.nix ({ pkgs, ...} : {
};
};
simpleServiceWithExtraSection.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.packages = [ (pkgs.writeTextFile {
name = "systemd-extra-section";
destination = "/etc/systemd/system/test.service";
text = ''
[X-Test]
X-Test-Value=a
'';
}) ];
};
simpleServiceWithExtraSectionOtherName.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.packages = [ (pkgs.writeTextFile {
name = "systemd-extra-section";
destination = "/etc/systemd/system/test.service";
text = ''
[X-Test2]
X-Test-Value=a
'';
}) ];
};
simpleServiceWithInstallSection.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.packages = [ (pkgs.writeTextFile {
name = "systemd-extra-section";
destination = "/etc/systemd/system/test.service";
text = ''
[Install]
WantedBy=multi-user.target
'';
}) ];
};
simpleServiceWithExtraKey.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.services.test.serviceConfig."X-Test" = "test";
};
simpleServiceWithExtraKeyOtherValue.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.services.test.serviceConfig."X-Test" = "test2";
};
simpleServiceWithExtraKeyOtherName.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.services.test.serviceConfig."X-Test2" = "test";
};
simpleServiceReloadTrigger.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.services.test.reloadTriggers = [ "/dev/null" ];
};
simpleServiceReloadTriggerModified.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.services.test.reloadTriggers = [ "/dev/zero" ];
};
simpleServiceReloadTriggerModifiedAndSomethingElse.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.services.test = {
reloadTriggers = [ "/dev/zero" ];
serviceConfig."X-Test" = "test";
};
};
simpleServiceReloadTriggerModifiedSomethingElse.configuration = {
imports = [ simpleServiceNostop.configuration ];
systemd.services.test.serviceConfig."X-Test" = "test";
};
restart-and-reload-by-activation-script.configuration = {
systemd.services = rec {
simple-service = {
@ -93,6 +168,17 @@ import ./make-test-python.nix ({ pkgs, ...} : {
no-restart-service = simple-service // {
restartIfChanged = false;
};
reload-triggers = simple-service // {
wantedBy = [ "multi-user.target" ];
};
reload-triggers-and-restart-by-as = simple-service;
reload-triggers-and-restart = simple-service // {
stopIfChanged = false; # easier to check for this
wantedBy = [ "multi-user.target" ];
};
};
system.activationScripts.restart-and-reload-test = {
@ -101,19 +187,33 @@ import ./make-test-python.nix ({ pkgs, ...} : {
text = ''
if [ "$NIXOS_ACTION" = dry-activate ]; then
f=/run/nixos/dry-activation-restart-list
g=/run/nixos/dry-activation-reload-list
else
f=/run/nixos/activation-restart-list
g=/run/nixos/activation-reload-list
fi
cat <<EOF >> "$f"
simple-service.service
simple-restart-service.service
simple-reload-service.service
no-restart-service.service
reload-triggers-and-restart-by-as.service
EOF
cat <<EOF >> "$g"
reload-triggers.service
reload-triggers-and-restart-by-as.service
reload-triggers-and-restart.service
EOF
'';
};
};
restart-and-reload-by-activation-script-modified.configuration = {
imports = [ restart-and-reload-by-activation-script.configuration ];
systemd.services.reload-triggers-and-restart.serviceConfig.X-Modified = "test";
};
mount.configuration = {
systemd.mounts = [
{
@ -241,6 +341,8 @@ import ./make-test-python.nix ({ pkgs, ...} : {
raise Exception(f"Unexpected string '{needle}' was found")
machine.wait_for_unit("multi-user.target")
machine.succeed(
"${stderrRunner} ${originalSystem}/bin/switch-to-configuration test"
)
@ -379,6 +481,130 @@ import ./make-test-python.nix ({ pkgs, ...} : {
assert_contains(out, "Main PID:") # output of systemctl
assert_lacks(out, "as well:")
with subtest("unit file parser"):
# Switch to a well-known state
switch_to_specialisation("${machine}", "simpleServiceNostop")
# Add a section
out = switch_to_specialisation("${machine}", "simpleServiceWithExtraSection")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_contains(out, "\nrestarting the following units: test.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Rename it
out = switch_to_specialisation("${machine}", "simpleServiceWithExtraSectionOtherName")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_contains(out, "\nrestarting the following units: test.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Remove it
out = switch_to_specialisation("${machine}", "simpleServiceNostop")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_contains(out, "\nrestarting the following units: test.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# [Install] section is ignored
out = switch_to_specialisation("${machine}", "simpleServiceWithInstallSection")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_lacks(out, "\nrestarting the following units:")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Add a key
out = switch_to_specialisation("${machine}", "simpleServiceWithExtraKey")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_contains(out, "\nrestarting the following units: test.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Change its value
out = switch_to_specialisation("${machine}", "simpleServiceWithExtraKeyOtherValue")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_contains(out, "\nrestarting the following units: test.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Rename it
out = switch_to_specialisation("${machine}", "simpleServiceWithExtraKeyOtherName")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_contains(out, "\nrestarting the following units: test.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Remove it
out = switch_to_specialisation("${machine}", "simpleServiceNostop")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_contains(out, "\nrestarting the following units: test.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Add a reload trigger
out = switch_to_specialisation("${machine}", "simpleServiceReloadTrigger")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_contains(out, "reloading the following units: test.service\n")
assert_lacks(out, "\nrestarting the following units:")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Modify the reload trigger
out = switch_to_specialisation("${machine}", "simpleServiceReloadTriggerModified")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_contains(out, "reloading the following units: test.service\n")
assert_lacks(out, "\nrestarting the following units:")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Modify the reload trigger and something else
out = switch_to_specialisation("${machine}", "simpleServiceReloadTriggerModifiedAndSomethingElse")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_contains(out, "\nrestarting the following units: test.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
# Remove the reload trigger
out = switch_to_specialisation("${machine}", "simpleServiceReloadTriggerModifiedSomethingElse")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_lacks(out, "\nrestarting the following units:")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "the following new units were started:")
assert_lacks(out, "as well:")
with subtest("restart and reload by activation script"):
switch_to_specialisation("${machine}", "simpleServiceNorestart")
out = switch_to_specialisation("${machine}", "restart-and-reload-by-activation-script")
@ -386,23 +612,32 @@ import ./make-test-python.nix ({ pkgs, ...} : {
assert_lacks(out, "NOT restarting the following changed units:")
assert_lacks(out, "reloading the following units:")
assert_lacks(out, "restarting the following units:")
assert_contains(out, "\nstarting the following units: no-restart-service.service, simple-reload-service.service, simple-restart-service.service, simple-service.service\n")
assert_contains(out, "\nstarting the following units: no-restart-service.service, reload-triggers-and-restart-by-as.service, simple-reload-service.service, simple-restart-service.service, simple-service.service\n")
assert_lacks(out, "as well:")
# Switch to the same system where the example services get restarted
# by the activation script
# and reloaded by the activation script
out = switch_to_specialisation("${machine}", "restart-and-reload-by-activation-script")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_contains(out, "reloading the following units: simple-reload-service.service\n")
assert_contains(out, "restarting the following units: simple-restart-service.service, simple-service.service\n")
assert_contains(out, "reloading the following units: reload-triggers-and-restart.service, reload-triggers.service, simple-reload-service.service\n")
assert_contains(out, "restarting the following units: reload-triggers-and-restart-by-as.service, simple-restart-service.service, simple-service.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "as well:")
# Switch to the same system and see if the service gets restarted when it's modified
# while the fact that it's supposed to be reloaded by the activation script is ignored.
out = switch_to_specialisation("${machine}", "restart-and-reload-by-activation-script-modified")
assert_lacks(out, "stopping the following units:")
assert_lacks(out, "NOT restarting the following changed units:")
assert_contains(out, "reloading the following units: reload-triggers.service, simple-reload-service.service\n")
assert_contains(out, "restarting the following units: reload-triggers-and-restart-by-as.service, reload-triggers-and-restart.service, simple-restart-service.service, simple-service.service\n")
assert_lacks(out, "\nstarting the following units:")
assert_lacks(out, "as well:")
# The same, but in dry mode
out = switch_to_specialisation("${machine}", "restart-and-reload-by-activation-script", action="dry-activate")
assert_lacks(out, "would stop the following units:")
assert_lacks(out, "would NOT stop the following changed units:")
assert_contains(out, "would reload the following units: simple-reload-service.service\n")
assert_contains(out, "would restart the following units: simple-restart-service.service, simple-service.service\n")
assert_contains(out, "would reload the following units: reload-triggers.service, simple-reload-service.service\n")
assert_contains(out, "would restart the following units: reload-triggers-and-restart-by-as.service, reload-triggers-and-restart.service, simple-restart-service.service, simple-service.service\n")
assert_lacks(out, "\nwould start the following units:")
assert_lacks(out, "as well:")