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7ef8b417a8
feat: Add unit tests for disable return value fix: Correct spelling in test case description feat: Test that disable-string works with enable again Closes #523 docs: Add section about disable return value
124 lines
3.0 KiB
JavaScript
124 lines
3.0 KiB
JavaScript
/* eslint-env mocha */
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'use strict';
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let chai;
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let expect;
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let debug;
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if (typeof module !== 'undefined') {
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chai = require('chai');
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expect = chai.expect;
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debug = require('./src');
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}
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describe('debug', () => {
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it('passes a basic sanity check', () => {
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const log = debug('test');
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log.enabled = true;
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log.log = () => {};
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expect(() => log('hello world')).to.not.throw();
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});
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it('allows namespaces to be a non-string value', () => {
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const log = debug('test');
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log.enabled = true;
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log.log = () => {};
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expect(() => debug.enable(true)).to.not.throw();
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});
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it('honors global debug namespace enable calls', () => {
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expect(debug('test:12345').enabled).to.equal(false);
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expect(debug('test:67890').enabled).to.equal(false);
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debug.enable('test:12345');
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expect(debug('test:12345').enabled).to.equal(true);
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expect(debug('test:67890').enabled).to.equal(false);
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});
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it('uses custom log function', () => {
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const log = debug('test');
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log.enabled = true;
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const messages = [];
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log.log = (...args) => messages.push(args);
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log('using custom log function');
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log('using custom log function again');
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log('%O', 12345);
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expect(messages.length).to.equal(3);
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});
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describe('extend namespace', () => {
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it('should extend namespace', () => {
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const log = debug('foo');
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log.enabled = true;
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log.log = () => {};
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const logBar = log.extend('bar');
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expect(logBar.namespace).to.be.equal('foo:bar');
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});
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it('should extend namespace with custom delimiter', () => {
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const log = debug('foo');
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log.enabled = true;
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log.log = () => {};
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const logBar = log.extend('bar', '--');
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expect(logBar.namespace).to.be.equal('foo--bar');
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});
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it('should extend namespace with empty delimiter', () => {
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const log = debug('foo');
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log.enabled = true;
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log.log = () => {};
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const logBar = log.extend('bar', '');
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expect(logBar.namespace).to.be.equal('foobar');
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});
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});
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describe('rebuild namespaces string (disable)', () => {
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it('handle names, skips, and wildcards', () => {
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debug.enable('test,abc*,-abc');
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const namespaces = debug.disable();
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expect(namespaces).to.equal('test,abc*,-abc');
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});
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it('handles empty', () => {
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debug.enable('');
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const namespaces = debug.disable();
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expect(namespaces).to.equal('');
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expect(debug.names).to.deep.equal([]);
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expect(debug.skips).to.deep.equal([]);
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});
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it('handles all', () => {
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debug.enable('*');
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const namespaces = debug.disable();
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expect(namespaces).to.equal('*');
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});
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it('handles skip all', () => {
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debug.enable('-*');
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const namespaces = debug.disable();
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expect(namespaces).to.equal('-*');
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});
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it('names+skips same with new string', () => {
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debug.enable('test,abc*,-abc');
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const oldNames = [...debug.names];
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const oldSkips = [...debug.skips];
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const namespaces = debug.disable();
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expect(namespaces).to.equal('test,abc*,-abc');
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debug.enable(namespaces);
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expect(oldNames.map(String)).to.deep.equal(debug.names.map(String));
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expect(oldSkips.map(String)).to.deep.equal(debug.skips.map(String));
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});
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});
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});
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