61 lines
1.9 KiB
TypeScript
61 lines
1.9 KiB
TypeScript
/*
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* Copyright The OpenTelemetry Authors
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*
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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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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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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 * as assert from 'assert';
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import * as sinon from 'sinon';
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import { BindOnceFuture } from '../../../src';
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import { assertRejects } from '../../test-utils';
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describe('callback', () => {
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describe('BindOnceFuture', () => {
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it('should call once', async () => {
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const stub = sinon.stub();
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const that = {};
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const future = new BindOnceFuture(stub, that);
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await Promise.all([future.call(1), future.call(2)]);
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await future.call(3);
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await future.promise;
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assert.strictEqual(stub.callCount, 1);
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assert.deepStrictEqual(stub.firstCall.args, [1]);
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assert.deepStrictEqual(stub.firstCall.thisValue, that);
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assert.ok(future.isCalled);
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});
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it('should handle thrown errors', async () => {
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const stub = sinon.stub();
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stub.throws(new Error('foo'));
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const future = new BindOnceFuture(stub, undefined);
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await assertRejects(future.call(), /foo/);
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await assertRejects(future.call(), /foo/);
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await assertRejects(future.promise, /foo/);
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});
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it('should handle rejections', async () => {
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const stub = sinon.stub();
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stub.rejects(new Error('foo'));
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const future = new BindOnceFuture(stub, undefined);
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await assertRejects(future.call(), /foo/);
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await assertRejects(future.call(), /foo/);
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await assertRejects(future.promise, /foo/);
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});
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});
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});
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