element-web/test/modules/ModuleRunner-test.ts

/*
Copyright 2022 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import { RoomPreviewOpts, RoomViewLifecycle } from "@matrix-org/react-sdk-module-api/lib/lifecycles/RoomViewLifecycle";

import {
    MockModule,
    registerMockModule,
    registerMockModuleWithCryptoSetupExtension,
    registerMockModuleWithExperimentalExtension,
} from "./MockModule";
import { ModuleRunner } from "../../src/modules/ModuleRunner";

describe("ModuleRunner", () => {
    afterEach(() => {
        ModuleRunner.instance.reset();
    });

    // Translations implicitly tested by ProxiedModuleApi integration tests.

    describe("invoke", () => {
        it("should invoke to every registered module", async () => {
            const module1 = registerMockModule();
            const module2 = registerMockModule();

            const wrapEmit = (module: MockModule) =>
                new Promise((resolve) => {
                    module.on(RoomViewLifecycle.PreviewRoomNotLoggedIn, (val1, val2) => {
                        resolve([val1, val2]);
                    });
                });
            const promises = Promise.all([wrapEmit(module1), wrapEmit(module2)]);

            const roomId = "!room:example.org";
            const opts: RoomPreviewOpts = { canJoin: false };
            ModuleRunner.instance.invoke(RoomViewLifecycle.PreviewRoomNotLoggedIn, opts, roomId);
            const results = await promises;
            expect(results).toEqual([
                [opts, roomId], // module 1
                [opts, roomId], // module 2
            ]);
        });
    });

    describe("extensions", () => {
        it("should return default values when no crypto-setup extensions are provided by a registered module", async () => {
            registerMockModule();
            const result = ModuleRunner.instance.extensions.cryptoSetup.getSecretStorageKey();
            expect(result).toBeNull();
        });

        it("should return default values when no experimental extensions are provided by a registered module", async () => {
            registerMockModule();
            const result = ModuleRunner.instance.extensions?.experimental.experimentalMethod();
            expect(result).toBeNull();
        });

        it("should return value from crypto-setup-extensions provided by a registered module", async () => {
            registerMockModuleWithCryptoSetupExtension();
            const result = ModuleRunner.instance.extensions.cryptoSetup.getSecretStorageKey();
            expect(result).toEqual(Uint8Array.from([0x11, 0x22, 0x99]));
        });

        it("should return value from experimental-extensions provided by a registered module", async () => {
            registerMockModuleWithExperimentalExtension();
            const result = ModuleRunner.instance.extensions.experimental.experimentalMethod();
            expect(result).toEqual(Uint8Array.from([0x22, 0x44, 0x88]));
        });

        it("must not allow multiple modules to provide cryptoSetup extension", async () => {
            registerMockModuleWithCryptoSetupExtension();
            const t = () => registerMockModuleWithCryptoSetupExtension();
            expect(t).toThrow(Error);
            expect(t).toThrow(
                "adding cryptoSetup extension implementation from module MockModuleWithCryptoSetupExtension but an implementation was already provided",
            );
        });

        it("must not allow multiple modules to provide experimental extension", async () => {
            registerMockModuleWithExperimentalExtension();
            const t = () => registerMockModuleWithExperimentalExtension();
            expect(t).toThrow(Error);
            expect(t).toThrow(
                "adding experimental extension implementation from module MockModuleWithExperimentalExtension but an implementation was already provided",
            );
        });
    });
});