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Merged
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Aug 8, 2025
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[Backport staging] Support for creator power level #4954

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164 changes: 19 additions & 145 deletions spec/unit/room-member.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -20,8 +20,8 @@ import * as utils from "../test-utils/test-utils";
import { RoomMember, RoomMemberEvent } from "../../src/models/room-member";
import {
createClient,
EventType,
type MatrixClient,
MatrixEvent,
type RoomState,
UNSTABLE_MSC2666_MUTUAL_ROOMS,
UNSTABLE_MSC2666_QUERY_MUTUAL_ROOMS,
Expand Down Expand Up @@ -101,158 +101,32 @@ describe("RoomMember", function () {
});
});

describe("setPowerLevelEvent", function () {
it("should set 'powerLevel' and 'powerLevelNorm'.", function () {
const event = utils.mkEvent({
type: "m.room.power_levels",
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@bertha:bar": 200,
"@invalid:user": 10, // shouldn't barf on this.
},
},
event: true,
});
member.setPowerLevelEvent(event);
expect(member.powerLevel).toEqual(20);
expect(member.powerLevelNorm).toEqual(10);

const memberB = new RoomMember(roomId, userB);
memberB.setPowerLevelEvent(event);
expect(memberB.powerLevel).toEqual(200);
expect(memberB.powerLevelNorm).toEqual(100);
describe("setPowerLevel", function () {
it("should set 'powerLevel'.", function () {
member.setPowerLevel(0, new MatrixEvent());
expect(member.powerLevel).toEqual(0);
member.setPowerLevel(200, new MatrixEvent());
expect(member.powerLevel).toEqual(200);
});

it("should emit 'RoomMember.powerLevel' if the power level changes.", function () {
const event = utils.mkEvent({
type: "m.room.power_levels",
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@bertha:bar": 200,
"@invalid:user": 10, // shouldn't barf on this.
},
},
event: true,
});
let emitCount = 0;
it("should emit when power level set", function () {
const onEmit = jest.fn();
member.on(RoomMemberEvent.PowerLevel, onEmit);

member.on(RoomMemberEvent.PowerLevel, function (emitEvent, emitMember) {
emitCount += 1;
expect(emitMember).toEqual(member);
expect(emitEvent).toEqual(event);
});
const aMatrixEvent = new MatrixEvent();
member.setPowerLevel(10, aMatrixEvent);

member.setPowerLevelEvent(event);
expect(emitCount).toEqual(1);
member.setPowerLevelEvent(event); // no-op
expect(emitCount).toEqual(1);
expect(onEmit).toHaveBeenCalledWith(aMatrixEvent, member);
});

it("should honour power levels of zero.", function () {
const event = utils.mkEvent({
type: "m.room.power_levels",
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@alice:bar": 0,
},
},
event: true,
});
let emitCount = 0;

// set the power level to something other than zero or we
// won't get an event
member.powerLevel = 1;
member.on(RoomMemberEvent.PowerLevel, function (emitEvent, emitMember) {
emitCount += 1;
expect(emitMember.userId).toEqual("@alice:bar");
expect(emitMember.powerLevel).toEqual(0);
expect(emitEvent).toEqual(event);
});

member.setPowerLevelEvent(event);
expect(member.powerLevel).toEqual(0);
expect(emitCount).toEqual(1);
});

it("should not honor string power levels.", function () {
const event = utils.mkEvent({
type: "m.room.power_levels",
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@alice:bar": "5",
},
},
event: true,
});
let emitCount = 0;
it("should not emit if new power level is the same", function () {
const onEmit = jest.fn();
member.on(RoomMemberEvent.PowerLevel, onEmit);

member.on(RoomMemberEvent.PowerLevel, function (emitEvent, emitMember) {
emitCount += 1;
expect(emitMember.userId).toEqual("@alice:bar");
expect(emitMember.powerLevel).toEqual(20);
expect(emitEvent).toEqual(event);
});

member.setPowerLevelEvent(event);
expect(member.powerLevel).toEqual(20);
expect(emitCount).toEqual(1);
});
const aMatrixEvent = new MatrixEvent();
member.setPowerLevel(0, aMatrixEvent);

it("should no-op if given a non-state or unrelated event", () => {
const fn = jest.spyOn(member, "emit");
expect(fn).not.toHaveBeenCalledWith(RoomMemberEvent.PowerLevel);
member.setPowerLevelEvent(
utils.mkEvent({
type: EventType.RoomPowerLevels,
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@alice:bar": "5",
},
},
skey: "invalid",
event: true,
}),
);
const nonStateEv = utils.mkEvent({
type: EventType.RoomPowerLevels,
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@alice:bar": "5",
},
},
event: true,
});
delete nonStateEv.event.state_key;
member.setPowerLevelEvent(nonStateEv);
member.setPowerLevelEvent(
utils.mkEvent({
type: EventType.Sticker,
room: roomId,
user: userA,
content: {},
event: true,
}),
);
expect(fn).not.toHaveBeenCalledWith(RoomMemberEvent.PowerLevel);
expect(onEmit).not.toHaveBeenCalled();
});
});

Expand Down
161 changes: 156 additions & 5 deletions spec/unit/room-state.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ import * as utils from "../test-utils/test-utils";
import { makeBeaconEvent, makeBeaconInfoEvent } from "../test-utils/beacon";
import { filterEmitCallsByEventType } from "../test-utils/emitter";
import { RoomState, RoomStateEvent } from "../../src/models/room-state";
import { RoomMemberEvent } from "../../src/models/room-member";
import { type Beacon, BeaconEvent, getBeaconInfoIdentifier } from "../../src/models/beacon";
import { EventType, RelationType, UNSTABLE_MSC2716_MARKER } from "../../src/@types/event";
import { MatrixEvent, MatrixEventEvent } from "../../src/models/event";
Expand Down Expand Up @@ -259,7 +260,7 @@ describe("RoomState", function () {
expect(emitCount).toEqual(2);
});

it("should call setPowerLevelEvent on each RoomMember for m.room.power_levels", function () {
it("should call setPowerLevel on each RoomMember for m.room.power_levels", function () {
const powerLevelEvent = utils.mkEvent({
type: "m.room.power_levels",
room: roomId,
Expand All @@ -273,12 +274,12 @@ describe("RoomState", function () {
});

// spy on the room members
jest.spyOn(state.members[userA], "setPowerLevelEvent");
jest.spyOn(state.members[userB], "setPowerLevelEvent");
jest.spyOn(state.members[userA], "setPowerLevel");
jest.spyOn(state.members[userB], "setPowerLevel");
state.setStateEvents([powerLevelEvent]);

expect(state.members[userA].setPowerLevelEvent).toHaveBeenCalledWith(powerLevelEvent);
expect(state.members[userB].setPowerLevelEvent).toHaveBeenCalledWith(powerLevelEvent);
expect(state.members[userA].setPowerLevel).toHaveBeenCalledWith(10, powerLevelEvent);
expect(state.members[userB].setPowerLevel).toHaveBeenCalledWith(10, powerLevelEvent);
});

it("should call setPowerLevelEvent on a new RoomMember if power levels exist", function () {
Expand Down Expand Up @@ -310,6 +311,156 @@ describe("RoomState", function () {
expect(state.members[userC].powerLevel).toEqual(10);
});

it("should calculate power level correctly", function () {
const powerLevelEvent = utils.mkEvent({
type: "m.room.power_levels",
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
[userB]: 200,
"@invalid:user": 10, // shouldn't barf on this.
},
},
event: true,
});
state.setStateEvents([powerLevelEvent]);

expect(state.getMember(userA)?.powerLevel).toEqual(20);
expect(state.getMember(userB)?.powerLevel).toEqual(200);
});

it("should set 'powerLevel' with a v12 room.", function () {
const createEventV12 = utils.mkEvent({
type: "m.room.create",
room: roomId,
sender: userA,
content: { room_version: "12" },
event: true,
});
const powerLevelEvent = utils.mkEvent({
type: "m.room.power_levels",
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
[userB]: 200,
"@invalid:user": 10, // shouldn't barf on this.
},
},
event: true,
});
state.setStateEvents([createEventV12, powerLevelEvent]);
expect(state.getMember(userA)?.powerLevel).toEqual(Infinity);
});

it("should honour power levels of zero.", function () {
const powerLevelEvent = utils.mkEvent({
type: "m.room.power_levels",
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@alice:bar": 0,
},
},
event: true,
});
let emitCount = 0;

const memberA = state.getMember(userA)!;
// set the power level to something other than zero or we
// won't get an event
memberA.powerLevel = 1;
memberA.on(RoomMemberEvent.PowerLevel, function (emitEvent, emitMember) {
emitCount += 1;
expect(emitMember.userId).toEqual("@alice:bar");
expect(emitMember.powerLevel).toEqual(0);
expect(emitEvent).toEqual(powerLevelEvent);
});

state.setStateEvents([powerLevelEvent]);
expect(memberA.powerLevel).toEqual(0);
expect(emitCount).toEqual(1);
});

it("should not honor string power levels.", function () {
const powerLevelEvent = utils.mkEvent({
type: "m.room.power_levels",
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@alice:bar": "5",
},
},
event: true,
});
let emitCount = 0;

const memberA = state.getMember(userA)!;
memberA.on(RoomMemberEvent.PowerLevel, function (emitEvent, emitMember) {
emitCount += 1;
expect(emitMember.userId).toEqual("@alice:bar");
expect(emitMember.powerLevel).toEqual(20);
expect(emitEvent).toEqual(powerLevelEvent);
});

state.setStateEvents([powerLevelEvent]);
expect(memberA.powerLevel).toEqual(20);
expect(emitCount).toEqual(1);
});

it("should no-op if given a non-state or unrelated event", () => {
const memberA = state.getMember(userA)!;
const fn = jest.spyOn(memberA, "emit");
expect(fn).not.toHaveBeenCalledWith(RoomMemberEvent.PowerLevel);

const powerLevelEvent = utils.mkEvent({
type: EventType.RoomPowerLevels,
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@alice:bar": "5",
},
},
skey: "invalid",
event: true,
});

state.setStateEvents([powerLevelEvent]);
const nonStateEv = utils.mkEvent({
type: EventType.RoomPowerLevels,
room: roomId,
user: userA,
content: {
users_default: 20,
users: {
"@alice:bar": "5",
},
},
event: true,
});
delete nonStateEv.event.state_key;
state.setStateEvents([nonStateEv]);
state.setStateEvents([
utils.mkEvent({
type: EventType.Sticker,
room: roomId,
user: userA,
content: {},
event: true,
}),
]);
expect(fn).not.toHaveBeenCalledWith(RoomMemberEvent.PowerLevel);
});

it("should call setMembershipEvent on the right RoomMember", function () {
const memberEvent = utils.mkMembership({
user: userB,
Expand Down
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