Files
factorio-clusterio/test/host/Instance.js
T
bbassieandClaude Opus 5 96362a2835 Wait for transitory instance statuses to settle
The config changed handler ran updateFactorioSettings and
updateFactorioWhitelist as soon as the field changed. While the instance
is starting, stopping, creating_save or exporting_data the server is not
ready for RCON, so the update threw and was only logged. The three list
update events pushed from the controller had the same problem, except
Link._processEvent swallowed the rejection and the update was lost
without a trace.

Add _waitForSettledStatus, which resolves once notifyStatus lands on
running or stopped. notifyStatus is the only place _status changes and
notifyExit always ends on stopped, so a waiter cannot hang. The settings,
whitelist and list updates now go through it.

Nothing is applied when the instance settles on stopped, because there is
no server to apply it to. factorio.settings is written to
server-settings.json and the lists to the list files on the next start,
and enableWhitelist is read from the config when the next Instance is
constructed.

The plugin hook now runs immediately for the two config fields instead of
being chained onto the update. Every other field already invokes it right
away, and waiting for the instance to settle would hold the notification
back for the whole startup.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-13 13:20:52 +00:00

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import assert from "node:assert/strict";
import path from "node:path";
import * as lib from "@clusterio/lib";
import { PlayerStats, wait } from "@clusterio/lib";
import Instance from "@clusterio/host/dist/node/src/Instance.js";
import { MockConnector, MockLogger, MockServer } from "../mock.js";
const addr = lib.Address.fromShorthand;
describe("class Instance", function() {
let src;
let dst = addr({ hostId: 1 });
let instance;
let connector;
beforeEach(function() {
let instanceConfig = new lib.InstanceConfig("host");
instanceConfig.set("instance.name", "foo");
src = addr({ instanceId: instanceConfig.get("instance.id") });
connector = new MockConnector(src, dst);
instance = new Instance({ assignGamePort: () => 1 }, connector, "dir", "factorioDir", instanceConfig);
instance.server = new MockServer();
});
describe(".name", function() {
it("should give the name of the instance", function() {
assert.equal(instance.name, "foo");
});
});
describe(".path()", function() {
it("should give the path when called without arguments", function() {
assert.equal(instance.path(), "dir");
});
it("should join path with arguments", function() {
assert.equal(instance.path("bar"), path.join("dir", "bar"));
});
});
describe("config fieldChanged", function() {
let errors;
let rejections;
let hookInvoked;
function onRejection(err) { rejections.push(err); }
beforeEach(function() {
errors = [];
rejections = [];
instance.logger = new MockLogger();
instance.logger.error = message => errors.push(message);
instance.server.exampleSettings = async () => ({});
instance.notifyStatus("running");
hookInvoked = new Promise(resolve => {
instance.hooks.instanceConfigFieldChanged.attach("test", field => resolve(field));
});
process.on("unhandledRejection", onRejection);
});
afterEach(function() {
process.off("unhandledRejection", onRejection);
});
it("should log whitelist update errors and invoke the hook", async function() {
instance.server.sendRcon = async () => { throw new Error("Expected state running,stopping"); };
instance.config.set("factorio.enable_whitelist", true);
assert.equal(await hookInvoked, "factorio.enable_whitelist");
await wait(10);
assert.deepEqual(rejections, []);
assert.equal(errors.length, 1);
assert.match(errors[0], /^Error updating whitelist:\nError: Expected state running,stopping/);
});
it("should log server settings update errors and invoke the hook", async function() {
instance.server.exampleSettings = async () => { throw new Error("no example settings"); };
instance.config.set("factorio.settings", { name: "bar" });
assert.equal(await hookInvoked, "factorio.settings");
await wait(10);
assert.deepEqual(rejections, []);
assert.equal(errors.length, 1);
assert.match(errors[0], /^Error updating server settings:\nError: no example settings/);
});
it("should apply tags with non-string elements", async function() {
instance.config.set("factorio.settings", { tags: [1, "a b"] });
await hookInvoked;
await wait(10);
assert.deepEqual(rejections, []);
assert.deepEqual(errors, []);
assert.deepEqual(instance.server.rconCommands, ["/config set tags 1 a b"]);
});
it("should defer changes made while starting until the instance is running", async function() {
instance.notifyStatus("starting");
instance.config.set("factorio.settings", { tags: ["a"] });
await wait(10);
assert.deepEqual(instance.server.rconCommands, [], "command sent while starting");
instance.notifyStatus("running");
await wait(10);
assert.deepEqual(instance.server.rconCommands, ["/config set tags a"]);
assert.deepEqual(errors, []);
assert.deepEqual(rejections, []);
});
it("should drop changes made while starting if the instance stops", async function() {
instance.notifyStatus("starting");
instance.config.set("factorio.settings", { tags: ["a"] });
await wait(10);
instance.notifyStatus("stopped");
await wait(10);
assert.deepEqual(instance.server.rconCommands, []);
assert.deepEqual(errors, []);
assert.deepEqual(rejections, []);
});
it("should do nothing for changes made while stopped", async function() {
instance.notifyStatus("stopped");
instance.config.set("factorio.settings", { tags: ["a"] });
await wait(10);
assert.deepEqual(instance.server.rconCommands, []);
assert.deepEqual(errors, []);
assert.deepEqual(rejections, []);
});
it("should invoke the hook while starting without waiting for the instance", async function() {
instance.notifyStatus("starting");
instance.config.set("factorio.settings", { tags: ["a"] });
assert.equal(await hookInvoked, "factorio.settings");
assert.deepEqual(instance.server.rconCommands, [], "command sent while starting");
instance.notifyStatus("stopped");
await wait(10);
});
});
describe("list update events", function() {
let errors;
beforeEach(function() {
errors = [];
instance.logger = new MockLogger();
instance.logger.error = message => errors.push(message);
});
it("should apply an update received while starting once running", async function() {
instance.notifyStatus("starting");
let handled = instance.handleInstanceAdminlistUpdateEvent(
new lib.InstanceAdminlistUpdateEvent("player", true)
);
await wait(10);
assert.deepEqual(instance.server.rconCommands, [], "command sent while starting");
instance.notifyStatus("running");
await handled;
assert.deepEqual(instance.server.rconCommands, ["/promote player"]);
assert.deepEqual(errors, []);
});
it("should drop an update received while starting if the instance stops", async function() {
instance.notifyStatus("starting");
let handled = instance.handleInstanceAdminlistUpdateEvent(
new lib.InstanceAdminlistUpdateEvent("player", true)
);
await wait(10);
instance.notifyStatus("stopped");
await handled;
assert.deepEqual(instance.server.rconCommands, []);
assert.deepEqual(errors, []);
});
});
describe(".checkModPackVersion()", function() {
function modPack(factorioVersion) {
return lib.ModPack.fromJSON({ name: "pack", factorio_version: factorioVersion });
}
it("should accept a mod pack for an older or equal Factorio version", function() {
instance.server.version = "1.1.91";
instance.checkModPackVersion(modPack("1.1"));
instance.checkModPackVersion(modPack("1.1.90"));
instance.checkModPackVersion(modPack("1.1.91"));
});
it("should reject a mod pack for a newer Factorio version", function() {
instance.server.version = "1.1.91";
assert.throws(
() => instance.checkModPackVersion(modPack("1.1.110")),
new lib.RequestError(
"Mod pack pack is for Factorio 1.1.110 which is newer than the Factorio 1.1.91 this instance runs"
)
);
assert.throws(() => instance.checkModPackVersion(modPack("2.0")), lib.RequestError);
});
it("should skip the check when the server version is unknown", function() {
instance.checkModPackVersion(modPack("2.0"));
});
});
describe("._recordPlayerJoin()", function() {
it("should add player to playersOnline", function() {
instance._recordPlayerJoin("player");
assert(instance.playersOnline.has("player"), "player was not added");
});
it("should create playerStats entry", function() {
assert(!instance.playerStats.has("player"));
instance._recordPlayerJoin("player");
assert(instance.playerStats.has("player"), "player was not added to stats");
});
it("should send player_event", function() {
instance._recordPlayerJoin("player");
let stats = instance.playerStats.get("player");
assert.deepEqual(
connector.sentMessages[0],
new lib.MessageEvent(
1, src, addr("controller"), "InstancePlayerUpdateEvent",
new lib.InstancePlayerUpdateEvent(
"join",
"player",
new PlayerStats({
join_count: 1,
last_join_at_ms: stats.lastJoinAt.getTime(),
})
)
),
);
});
it("should be idempotent", async function() {
instance._recordPlayerJoin("player");
await wait(10);
instance._recordPlayerJoin("player");
assert(instance.playersOnline.has("player"), "player was not added");
assert.equal(connector.sentMessages.length, 1);
});
});
describe("._recordPlayerLeave()", function() {
it("should remove player to playersOnline", async function() {
instance._recordPlayerJoin("player");
await wait(10);
instance._recordPlayerLeave("player");
assert(!instance.playersOnline.has("player"), "player was not removed");
});
it("should update playerStats", async function() {
instance._recordPlayerJoin("player");
await wait(10);
instance._recordPlayerLeave("player");
assert(instance.playerStats.has("player"), "playerStats record missing");
assert(instance.playerStats.get("player").onlineTimeMs > 0, "no onlineTimeMs recorded");
});
it("should send player_event", async function() {
instance._recordPlayerJoin("player");
await wait(10);
instance._recordPlayerLeave("player", "quit");
let stats = instance.playerStats.get("player");
assert.deepEqual(
connector.sentMessages[1],
new lib.MessageEvent(
2, src, addr("controller"), "InstancePlayerUpdateEvent",
new lib.InstancePlayerUpdateEvent(
"leave",
"player",
new PlayerStats({
join_count: 1,
online_time_ms: stats.onlineTimeMs,
last_join_at_ms: stats.lastJoinAt.getTime(),
last_leave_at_ms: stats.lastLeaveAt.getTime(),
last_leave_reason: "quit",
}),
"quit",
)
),
);
});
it("should be idempotent", async function() {
instance._recordPlayerJoin("player");
await wait(10);
instance._recordPlayerLeave("player", "quit");
await wait(10);
instance._recordPlayerLeave("player", "quit");
assert(!instance.playersOnline.has("player"), "player was not removed");
assert.equal(connector.sentMessages.length, 2);
});
});
describe("._checkOnlinePlayers()", function() {
it("should do nothing on empty server", async function() {
await instance._checkOnlinePlayers();
assert.equal(instance.server.rconCommands.length, 0, "commands were sent");
assert.equal(connector.sentMessages.length, 0, "messages were sent");
});
it("should do nothing on correct online presence", async function() {
instance.server.rconCommandResults.set("/players online", "Online Players (1):\n player (online)\n");
instance.playersOnline.add("player");
await instance._checkOnlinePlayers();
assert.equal(connector.sentMessages.length, 0, "messages were sent");
});
it("should add missing players", async function() {
instance.server.rconCommandResults.set(
"/players online", "Online Players (2):\n player (online)\n foo (online)\n"
);
instance._recordPlayerJoin("player");
await instance._checkOnlinePlayers();
let stats = instance.playerStats.get("foo");
assert.deepEqual(
connector.sentMessages[1],
new lib.MessageEvent(
2, src, addr("controller"), "InstancePlayerUpdateEvent",
new lib.InstancePlayerUpdateEvent(
"join",
"foo",
new PlayerStats({
join_count: 1,
last_join_at_ms: stats.lastJoinAt.getTime(),
})
)
)
);
});
it("should remove extra players", async function() {
instance.server.rconCommandResults.set("/players online", "Online Players (0):\n");
instance._recordPlayerJoin("player");
await wait(10);
await instance._checkOnlinePlayers();
let stats = instance.playerStats.get("player");
assert.deepEqual(
connector.sentMessages[1],
new lib.MessageEvent(
2, src, addr("controller"), "InstancePlayerUpdateEvent",
new lib.InstancePlayerUpdateEvent(
"leave",
"player",
new PlayerStats({
join_count: 1,
online_time_ms: stats.onlineTimeMs,
last_join_at_ms: stats.lastJoinAt.getTime(),
last_leave_at_ms: stats.lastLeaveAt.getTime(),
last_leave_reason: "quit",
}),
"quit",
)
)
);
});
});
describe("_recordUserUpdate()", function() {
beforeEach(function() {
instance.config.set("factorio.sync_banlist", "bidirectional");
instance.config.set("factorio.sync_adminlist", "bidirectional");
instance.config.set("factorio.sync_whitelist", "bidirectional");
});
it("should send InstanceBanlistUpdateEvent for bans", function() {
instance._recordUserUpdate("BAN", "player", "reason");
assert.deepEqual(
connector.sentMessages[0],
new lib.MessageEvent(
1, src, addr("allInstances"), "InstanceBanlistUpdateEvent",
new lib.InstanceBanlistUpdateEvent(
"player",
true,
"reason",
)
),
);
});
it("should send InstanceBanlistUpdateEvent for unbans", function() {
instance._recordUserUpdate("UNBANNED", "player");
assert.deepEqual(
connector.sentMessages[0],
new lib.MessageEvent(
1, src, addr("allInstances"), "InstanceBanlistUpdateEvent",
new lib.InstanceBanlistUpdateEvent(
"player",
false,
"",
)
),
);
});
it("should send InstanceAdminlistUpdateEvent for promotes", function() {
instance._recordUserUpdate("PROMOTE", "player");
assert.deepEqual(
connector.sentMessages[0],
new lib.MessageEvent(
1, src, addr("allInstances"), "InstanceAdminlistUpdateEvent",
new lib.InstanceAdminlistUpdateEvent(
"player",
true,
)
),
);
});
it("should send InstanceAdminlistUpdateEvent for demotes", function() {
instance._recordUserUpdate("DEMOTE", "player");
assert.deepEqual(
connector.sentMessages[0],
new lib.MessageEvent(
1, src, addr("allInstances"), "InstanceAdminlistUpdateEvent",
new lib.InstanceAdminlistUpdateEvent(
"player",
false,
)
),
);
});
it("should send InstanceWhitelistUpdateEvent for whitelist add", function() {
instance._recordUserUpdate("WHITELISTED", "player");
assert.deepEqual(
connector.sentMessages[0],
new lib.MessageEvent(
1, src, addr("allInstances"), "InstanceWhitelistUpdateEvent",
new lib.InstanceWhitelistUpdateEvent(
"player",
true,
)
),
);
});
it("should send InstanceWhitelistUpdateEvent for whitelist remove", function() {
instance._recordUserUpdate("UNWHITELISTED", "player");
assert.deepEqual(
connector.sentMessages[0],
new lib.MessageEvent(
1, src, addr("allInstances"), "InstanceWhitelistUpdateEvent",
new lib.InstanceWhitelistUpdateEvent(
"player",
false,
)
),
);
});
it("should throw for unknown event types", function() {
assert.throws(() => {
instance._recordUserUpdate("INVALID TYPE", "player");
});
});
it("should not send events when it is not bidirectional", function() {
for (const configValue of ["disabled", "enabled"]) { // Excludes Bidirectional
instance.config.set("factorio.sync_banlist", configValue);
instance.config.set("factorio.sync_adminlist", configValue);
instance.config.set("factorio.sync_whitelist", configValue);
for (const eventType of
["BAN", "UNBANNED", "PROMOTE", "DEMOTE", "WHITELISTED", "UNWHITELISTED"]
) {
instance._recordUserUpdate(eventType, "player");
assert.equal(connector.sentMessages[0], undefined);
}
}
});
});
});