Files
element-call-Github/src/state/CallViewModel/remoteMembers/ConnectionManager.test.ts

339 lines
11 KiB
TypeScript

/*
Copyright 2025 Element Creations Ltd.
SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
Please see LICENSE in the repository root for full details.
*/
import { afterEach, beforeEach, describe, expect, test, vi } from "vitest";
import { BehaviorSubject } from "rxjs";
import { type LivekitTransport } from "matrix-js-sdk/lib/matrixrtc";
import { type Participant as LivekitParticipant } from "livekit-client";
import { logger } from "matrix-js-sdk/lib/logger";
import { Epoch, mapEpoch, ObservableScope } from "../../ObservableScope.ts";
import {
createConnectionManager$,
type ConnectionManagerData,
} from "./ConnectionManager.ts";
import { type ConnectionFactory } from "./ConnectionFactory.ts";
import { type Connection } from "./Connection.ts";
import { withTestScheduler } from "../../../utils/test.ts";
import { areLivekitTransportsEqual } from "./MatrixLivekitMembers.ts";
import { type Behavior } from "../../Behavior.ts";
// Some test constants
const TRANSPORT_1: LivekitTransport = {
type: "livekit",
livekit_service_url: "https://lk.example.org",
livekit_alias: "!alias:example.org",
};
const TRANSPORT_2: LivekitTransport = {
type: "livekit",
livekit_service_url: "https://lk.sample.com",
livekit_alias: "!alias:sample.com",
};
let fakeConnectionFactory: ConnectionFactory;
let testScope: ObservableScope;
// Can be useful to track all created connections in tests, even the disposed ones
let allCreatedConnections: Connection[];
beforeEach(() => {
testScope = new ObservableScope();
allCreatedConnections = [];
fakeConnectionFactory = {} as unknown as ConnectionFactory;
vi.mocked(fakeConnectionFactory).createConnection = vi
.fn()
.mockImplementation(
(transport: LivekitTransport, scope: ObservableScope) => {
const mockConnection = {
transport,
remoteParticipantsWithTracks$: new BehaviorSubject([]),
} as unknown as Connection;
vi.mocked(mockConnection).start = vi.fn();
vi.mocked(mockConnection).stop = vi.fn();
// Tie the connection's lifecycle to the scope to test scope lifecycle management
scope.onEnd(() => {
void mockConnection.stop();
});
allCreatedConnections.push(mockConnection);
return mockConnection;
},
);
});
afterEach(() => {
testScope.end();
});
describe("connections$ stream", () => {
test("Should create and start new connections for each transports", () => {
withTestScheduler(({ behavior, expectObservable }) => {
const { connectionManagerData$ } = createConnectionManager$({
scope: testScope,
connectionFactory: fakeConnectionFactory,
inputTransports$: behavior("a", {
a: new Epoch([TRANSPORT_1, TRANSPORT_2], 0),
}),
logger: logger,
});
expectObservable(
connectionManagerData$.pipe(mapEpoch((d) => d.getConnections())),
).toBe("a", {
a: expect.toSatisfy((e: Epoch<Connection[]>) => {
const connections = e.value;
expect(connections.length).toBe(2);
expect(
vi.mocked(fakeConnectionFactory).createConnection,
).toHaveBeenCalledTimes(2);
const conn1 = connections.find((c) =>
areLivekitTransportsEqual(c.transport, TRANSPORT_1),
);
expect(conn1).toBeDefined();
expect(conn1!.start).toHaveBeenCalled();
const conn2 = connections.find((c) =>
areLivekitTransportsEqual(c.transport, TRANSPORT_2),
);
expect(conn2).toBeDefined();
expect(conn2!.start).toHaveBeenCalled();
return true;
}),
});
});
});
test("Should start connection only once", () => {
withTestScheduler(({ behavior, expectObservable }) => {
const { connectionManagerData$ } = createConnectionManager$({
scope: testScope,
connectionFactory: fakeConnectionFactory,
inputTransports$: behavior("abcdef", {
a: new Epoch([TRANSPORT_1], 0),
b: new Epoch([TRANSPORT_1], 1),
c: new Epoch([TRANSPORT_1], 2),
d: new Epoch([TRANSPORT_1], 3),
e: new Epoch([TRANSPORT_1], 4),
f: new Epoch([TRANSPORT_1, TRANSPORT_2], 5),
}),
logger: logger,
});
expectObservable(
connectionManagerData$.pipe(mapEpoch((d) => d.getConnections())),
).toBe("xxxxxa", {
x: expect.anything(),
a: expect.toSatisfy((e: Epoch<Connection[]>) => {
const connections = e.value;
expect(connections.length).toBe(2);
expect(
vi.mocked(fakeConnectionFactory).createConnection,
).toHaveBeenCalledTimes(2);
const conn2 = connections.find((c) =>
areLivekitTransportsEqual(c.transport, TRANSPORT_2),
);
expect(conn2).toBeDefined();
const conn1 = connections.find((c) =>
areLivekitTransportsEqual(c.transport, TRANSPORT_1),
);
expect(conn1).toBeDefined();
expect(conn1!.start).toHaveBeenCalledOnce();
return true;
}),
});
});
});
test("Should cleanup connections when not needed anymore", () => {
withTestScheduler(({ behavior, expectObservable }) => {
const { connectionManagerData$ } = createConnectionManager$({
scope: testScope,
connectionFactory: fakeConnectionFactory,
inputTransports$: behavior("abc", {
a: new Epoch([TRANSPORT_1], 0),
b: new Epoch([TRANSPORT_1, TRANSPORT_2], 1),
c: new Epoch([TRANSPORT_1], 2),
}),
logger: logger,
});
expectObservable(
connectionManagerData$.pipe(mapEpoch((d) => d.getConnections())),
).toBe("xab", {
x: expect.anything(),
a: expect.toSatisfy((e: Epoch<Connection[]>) => {
const connections = e.value;
expect(connections.length).toBe(2);
return true;
}),
b: expect.toSatisfy((e: Epoch<Connection[]>) => {
const connections = e.value;
expect(connections.length).toBe(1);
// The second connection should have been stopped has it is no longer needed.
const connection2 = allCreatedConnections.find((c) =>
areLivekitTransportsEqual(c.transport, TRANSPORT_2),
);
expect(connection2).toBeDefined();
expect(connection2!.stop).toHaveBeenCalled();
// The first connection should still be active
const conn1 = connections[0];
expect(conn1.stop).not.toHaveBeenCalledOnce();
return true;
}),
});
});
});
});
describe("connectionManagerData$ stream", () => {
// Used in test to control fake connections' remoteParticipantsWithTracks$ streams
let fakePublishingParticipantsStreams: Map<
string,
Behavior<LivekitParticipant[]>
>;
function keyForTransport(transport: LivekitTransport): string {
return `${transport.livekit_service_url}|${transport.livekit_alias}`;
}
beforeEach(() => {
fakePublishingParticipantsStreams = new Map();
function getPublishingParticipantsFor(
transport: LivekitTransport,
): Behavior<LivekitParticipant[]> {
return (
fakePublishingParticipantsStreams.get(keyForTransport(transport)) ??
new BehaviorSubject([])
);
}
// need a more advanced fake connection factory
vi.mocked(fakeConnectionFactory).createConnection = vi
.fn()
.mockImplementation(
(transport: LivekitTransport, scope: ObservableScope) => {
const fakePublishingParticipants$ = new BehaviorSubject<
LivekitParticipant[]
>([]);
const mockConnection = {
transport,
remoteParticipantsWithTracks$:
getPublishingParticipantsFor(transport),
} as unknown as Connection;
vi.mocked(mockConnection).start = vi.fn();
vi.mocked(mockConnection).stop = vi.fn();
// Tie the connection's lifecycle to the scope to test scope lifecycle management
scope.onEnd(() => {
void mockConnection.stop();
});
fakePublishingParticipantsStreams.set(
keyForTransport(transport),
fakePublishingParticipants$,
);
return mockConnection;
},
);
});
test("Should report connections with the publishing participants", () => {
withTestScheduler(({ expectObservable, schedule, behavior }) => {
// Setup the fake participants streams behavior
// ==============================
fakePublishingParticipantsStreams.set(
keyForTransport(TRANSPORT_1),
behavior("oa-b", {
o: [],
a: [{ identity: "user1A" } as LivekitParticipant],
b: [
{ identity: "user1A" } as LivekitParticipant,
{ identity: "user1B" } as LivekitParticipant,
],
}),
);
fakePublishingParticipantsStreams.set(
keyForTransport(TRANSPORT_2),
behavior("o-a", {
o: [],
a: [{ identity: "user2A" } as LivekitParticipant],
}),
);
// ==============================
const { connectionManagerData$ } = createConnectionManager$({
scope: testScope,
connectionFactory: fakeConnectionFactory,
inputTransports$: behavior("a", {
a: new Epoch([TRANSPORT_1, TRANSPORT_2], 0),
}),
logger,
});
expectObservable(connectionManagerData$).toBe("abcd", {
a: expect.toSatisfy((e) => {
const data: ConnectionManagerData = e.value;
expect(data.getConnections().length).toBe(2);
expect(data.getParticipantForTransport(TRANSPORT_1).length).toBe(0);
expect(data.getParticipantForTransport(TRANSPORT_2).length).toBe(0);
return true;
}),
b: expect.toSatisfy((e) => {
const data: ConnectionManagerData = e.value;
expect(data.getConnections().length).toBe(2);
expect(data.getParticipantForTransport(TRANSPORT_1).length).toBe(1);
expect(data.getParticipantForTransport(TRANSPORT_2).length).toBe(0);
expect(data.getParticipantForTransport(TRANSPORT_1)[0].identity).toBe(
"user1A",
);
return true;
}),
c: expect.toSatisfy((e) => {
const data: ConnectionManagerData = e.value;
expect(data.getConnections().length).toBe(2);
expect(data.getParticipantForTransport(TRANSPORT_1).length).toBe(1);
expect(data.getParticipantForTransport(TRANSPORT_2).length).toBe(1);
expect(data.getParticipantForTransport(TRANSPORT_1)[0].identity).toBe(
"user1A",
);
expect(data.getParticipantForTransport(TRANSPORT_2)[0].identity).toBe(
"user2A",
);
return true;
}),
d: expect.toSatisfy((e) => {
const data: ConnectionManagerData = e.value;
expect(data.getConnections().length).toBe(2);
expect(data.getParticipantForTransport(TRANSPORT_1).length).toBe(2);
expect(data.getParticipantForTransport(TRANSPORT_2).length).toBe(1);
expect(data.getParticipantForTransport(TRANSPORT_1)[0].identity).toBe(
"user1A",
);
expect(data.getParticipantForTransport(TRANSPORT_1)[1].identity).toBe(
"user1B",
);
expect(data.getParticipantForTransport(TRANSPORT_2)[0].identity).toBe(
"user2A",
);
return true;
}),
});
});
});
});