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/** * Copyright (c) Microsoft Corporation. * * 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 { describe, it, expect } from 'vitest'; import { ManualPromise, LongStandingScope } from '../src/mcp/manualPromise.js'; describe('mcp/manualPromise', () => { describe('ManualPromise', () => { it('resolves and tracks completion', async () => { const p = new ManualPromise<number>(); p.resolve(42); await expect(p).resolves.toBe(42); expect(p.isDone()).toBe(true); }); it('rejects and tracks completion', async () => { const p = new ManualPromise<void>(); p.reject(new Error('boom')); await expect(p).rejects.toThrow('boom'); expect(p.isDone()).toBe(true); }); }); describe('LongStandingScope', () => { it('race resolves with underlying promise', async () => { const scope = new LongStandingScope(); const result = await scope.race(Promise.resolve('ok')); expect(result).toBe('ok'); }); it('race rejects when scope is rejected', async () => { const scope = new LongStandingScope(); scope.reject(new Error('terminated')); await expect(scope.race(new Promise(() => {}))).rejects.toThrow('terminated'); }); it('safeRace returns default value on close', async () => { const scope = new LongStandingScope(); const pending = new Promise<number>(() => {}); const raced = scope.safeRace(pending, 7); scope.close(new Error('closed')); await expect(raced).resolves.toBe(7); }); }); });