260 lines
7.5 KiB
JavaScript
260 lines
7.5 KiB
JavaScript
var Log = require('../../src/lib/log');
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var _ = require('lodash');
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describe('Log class', function () {
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describe('::parseLevels', function () {
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it('accepts a string and returns it and the other levels below it', function () {
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Log.parseLevels('trace').should.eql([
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'error',
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'warning',
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'info',
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'debug',
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'trace'
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]);
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});
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it('accepts and validates an array of levels', function () {
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Log.parseLevels(['warning', 'info']).should.eql(['warning', 'info']);
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});
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it('throws an error when an invalid string is supplied', function () {
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(function () {
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Log.parseLevels('INVALID');
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}).should.throw(/invalid logging level/);
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});
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it('throws an error when an invalid string is supplied in side an array', function () {
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(function () {
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Log.parseLevels(['error', 'INVALID']);
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}).should.throw(/invalid logging level/);
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});
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});
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describe('#addOutput', function () {
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var log;
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Log.loggers.stub = function (log, config) {
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this.config = config;
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};
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beforeEach(function () {
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log = new Log();
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});
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it('returns the newly created logger', function () {
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log.addOutput({ type: 'stub' }).should.be.an.instanceOf(Log.loggers.stub);
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});
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it('Accepts a config object with `level: "{{level}}"`', function () {
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var logger = log.addOutput({
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type: 'stub',
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level: 'warning'
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});
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logger.config.should.include({
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levels: [
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'error', 'warning'
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]
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});
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});
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it('Accepts a config object with `level: ["{{level}}"]`', function () {
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var logger = log.addOutput({
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type: 'stub',
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level: ['warning']
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});
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logger.config.should.include({
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levels: [
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'warning'
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]
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});
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});
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it('Accepts a config object with `levels: "{{level}}"`', function () {
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var logger = log.addOutput({
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type: 'stub',
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levels: 'warning'
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});
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logger.config.should.include({
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levels: [
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'error', 'warning'
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]
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});
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});
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it('Accepts a config object with `levels: ["{{level}}"]`', function () {
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var logger = log.addOutput({
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type: 'stub',
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level: ['warning']
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});
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logger.config.should.include({
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levels: [
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'warning'
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]
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});
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});
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});
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describe('#join', function () {
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it('joins strings together with spaces', function () {
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Log.join(['foo', 'bar']).should.eql('foo bar');
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});
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it('stringifies objects', function () {
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Log.join([{ foo: 'bar' }]).should.eql('{ foo: \'bar\' }\n');
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});
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});
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describe('instance without any outputs', function () {
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var log;
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beforeEach(function () {
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log = new Log();
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});
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it('should not emit any events', function () {
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log.emit = function () {
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throw new Error('Emit should not be called');
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};
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log.error();
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log.info();
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log.warning();
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log.debug();
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log.trace();
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});
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});
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describe('instance without one output listening to all events', function () {
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var log, call;
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beforeEach(function () {
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call = void 0;
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log = new Log({
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log: [
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{
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type: function (log, config) {
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log.on('error', _.noop);
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log.on('warning', _.noop);
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log.on('info', _.noop);
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log.on('debug', _.noop);
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log.on('trace', _.noop);
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}
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}
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]
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});
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log.emit = function (eventName) {
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call = {
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event : eventName,
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args: Array.prototype.slice.call(arguments, 1)
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};
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};
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});
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it('should emit an "error" event with an Error object arg', function () {
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var err = new Error('error');
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log.error(err);
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call.event.should.eql('error');
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call.args[0].should.be.exactly(err);
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call = void 0;
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log.error('error');
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call.event.should.eql('error');
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call.args[0].should.be.an.instanceOf(Error);
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call.args[0].message.should.eql('error');
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});
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it('should emit a "warning" event with a single message arg for #warning calls', function () {
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log.warning('shit!');
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call.event.should.eql('warning');
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call.args.should.have.length(1);
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call.args[0].should.eql('shit!');
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});
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it('should emit a "info" event with a single message arg for #info calls', function () {
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log.info('look out!');
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call.event.should.eql('info');
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call.args.should.have.length(1);
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call.args[0].should.eql('look out!');
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});
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it('should emit a "debug" event with a single message arg for #debug calls', function () {
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log.debug('here');
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call.event.should.eql('debug');
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call.args.should.have.length(1);
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call.args[0].should.eql('here');
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});
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it('should emit a trace event for trace events, with message and curlCall args', function () {
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log.trace('GET', 'http://localhost:9200/_cluster/nodes', '', '', 200);
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call.event.should.eql('trace');
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call.args.should.have.length(2);
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call.args[0].should.match(/^<- 200/);
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call.args[1].should.match(/^curl /);
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});
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});
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describe('constructor', function () {
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it('looks for output config options at config.log', function () {
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var log = new Log({ log: { type: process.browser ? 'console' : 'stdio', level: 'error' } });
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log.listenerCount('error').should.eql(1);
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log.listenerCount('warning').should.eql(0);
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log.listenerCount('info').should.eql(0);
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log.listenerCount('debug').should.eql(0);
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log.listenerCount('trace').should.eql(0);
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});
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it('accepts a string and treat it as a log level', function () {
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var log = new Log({ log: 'error' });
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log.listenerCount('error').should.eql(1);
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log.listenerCount('warning').should.eql(0);
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log.listenerCount('info').should.eql(0);
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log.listenerCount('debug').should.eql(0);
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log.listenerCount('trace').should.eql(0);
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});
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it('accepts an array of strings and treat it as a log level config', function () {
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var log = new Log({ log: ['error', 'trace'] });
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log.listenerCount('error').should.eql(1);
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log.listenerCount('warning').should.eql(0);
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log.listenerCount('info').should.eql(0);
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log.listenerCount('debug').should.eql(0);
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log.listenerCount('trace').should.eql(1);
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});
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it('accepts an array of output config objects', function () {
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var log = new Log({ log: [{ level: 'error' }, { level: 'trace'}] });
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log.listenerCount('error').should.eql(2);
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log.listenerCount('warning').should.eql(1);
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log.listenerCount('info').should.eql(1);
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log.listenerCount('debug').should.eql(1);
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log.listenerCount('trace').should.eql(1);
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});
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it('rejects numbers and other truthy data-types', function () {
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(function () {
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var log = new Log({ log: 1515 });
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}).should.throw(/invalid logging output config/i);
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(function () {
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var log = new Log({ log: /regexp/ });
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}).should.throw(/invalid logging output config/i);
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(function () {
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var log = new Log({ log: new Date() });
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}).should.throw(/invalid logging output config/i);
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(function () {
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var log = new Log({ log: [1515] });
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}).should.throw(/invalid logging output config/i);
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(function () {
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var log = new Log({ log: [/regexp/] });
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}).should.throw(/invalid logging output config/i);
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(function () {
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var log = new Log({ log: [new Date()] });
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}).should.throw(/invalid logging output config/i);
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});
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});
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});
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