56 lines
1.7 KiB
TypeScript
56 lines
1.7 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import EventEmitter from "events";
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import { MethodKeysOf, mocked, MockedObject } from "jest-mock";
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import { MatrixClient } from "matrix-js-sdk/src/matrix";
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import { MatrixClientPeg } from "../../src/MatrixClientPeg";
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/**
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* Mock client with real event emitter
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* useful for testing code that listens
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* to MatrixClient events
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*/
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export class MockClientWithEventEmitter extends EventEmitter {
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constructor(mockProperties: Partial<Record<MethodKeysOf<MatrixClient>, unknown>> = {}) {
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super();
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Object.assign(this, mockProperties);
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}
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}
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/**
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* - make a mock client
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* - cast the type to mocked(MatrixClient)
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* - spy on MatrixClientPeg.get to return the mock
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* eg
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* ```
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* const mockClient = getMockClientWithEventEmitter({
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getUserId: jest.fn().mockReturnValue(aliceId),
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});
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* ```
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*/
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export const getMockClientWithEventEmitter = (
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mockProperties: Partial<Record<MethodKeysOf<MatrixClient>, unknown>>,
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): MockedObject<MatrixClient> => {
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const mock = mocked(new MockClientWithEventEmitter(mockProperties) as unknown as MatrixClient);
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jest.spyOn(MatrixClientPeg, 'get').mockReturnValue(mock);
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return mock;
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};
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