66 lines
1.9 KiB
JavaScript
66 lines
1.9 KiB
JavaScript
/**
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* Copyright 2020 Google Inc. All rights reserved.
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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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* http://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 { debug } from '../lib/esm/puppeteer/common/Debug.js';
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import expect from '../node_modules/expect/build-es5/index.js';
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describe('debug', () => {
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let originalLog;
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let logs;
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beforeEach(() => {
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originalLog = console.log;
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logs = [];
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console.log = (...args) => {
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logs.push(args);
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};
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});
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afterEach(() => {
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console.log = originalLog;
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});
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it('should return a function', async () => {
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expect(debug('foo')).toBeInstanceOf(Function);
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});
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it('does not log to the console if __PUPPETEER_DEBUG global is not set', async () => {
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const debugFn = debug('foo');
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debugFn('lorem', 'ipsum');
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expect(logs.length).toEqual(0);
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});
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it('logs to the console if __PUPPETEER_DEBUG global is set to *', async () => {
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globalThis.__PUPPETEER_DEBUG = '*';
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const debugFn = debug('foo');
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debugFn('lorem', 'ipsum');
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expect(logs.length).toEqual(1);
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expect(logs).toEqual([['foo:', 'lorem', 'ipsum']]);
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});
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it('logs only messages matching the __PUPPETEER_DEBUG prefix', async () => {
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globalThis.__PUPPETEER_DEBUG = 'foo';
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const debugFoo = debug('foo');
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const debugBar = debug('bar');
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debugFoo('a');
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debugBar('b');
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expect(logs.length).toEqual(1);
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expect(logs).toEqual([['foo:', 'a']]);
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});
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});
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