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