logger-test.js
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"use strict";
var vows = require('vows')
, assert = require('assert')
, levels = require('../lib/levels')
, loggerModule = require('../lib/logger')
, Logger = loggerModule.Logger;
vows.describe('../lib/logger').addBatch({
'constructor with no parameters': {
topic: new Logger(),
'should use default category': function(logger) {
assert.equal(logger.category, Logger.DEFAULT_CATEGORY);
},
'should use TRACE log level': function(logger) {
assert.equal(logger.level, levels.TRACE);
}
},
'constructor with category': {
topic: new Logger('cheese'),
'should use category': function(logger) {
assert.equal(logger.category, 'cheese');
},
'should use TRACE log level': function(logger) {
assert.equal(logger.level, levels.TRACE);
}
},
'constructor with category and level': {
topic: new Logger('cheese', 'debug'),
'should use category': function(logger) {
assert.equal(logger.category, 'cheese');
},
'should use level': function(logger) {
assert.equal(logger.level, levels.DEBUG);
}
},
'isLevelEnabled': {
topic: new Logger('cheese', 'info'),
'should provide a level enabled function for all levels': function(logger) {
assert.isFunction(logger.isTraceEnabled);
assert.isFunction(logger.isDebugEnabled);
assert.isFunction(logger.isInfoEnabled);
assert.isFunction(logger.isWarnEnabled);
assert.isFunction(logger.isErrorEnabled);
assert.isFunction(logger.isFatalEnabled);
},
'should return the right values': function(logger) {
assert.isFalse(logger.isTraceEnabled());
assert.isFalse(logger.isDebugEnabled());
assert.isTrue(logger.isInfoEnabled());
assert.isTrue(logger.isWarnEnabled());
assert.isTrue(logger.isErrorEnabled());
assert.isTrue(logger.isFatalEnabled());
}
},
'should emit log events': {
topic: function() {
var events = [],
logger = new Logger();
logger.addListener('log', function (logEvent) { events.push(logEvent); });
logger.debug('Event 1');
loggerModule.disableAllLogWrites();
logger.debug('Event 2');
loggerModule.enableAllLogWrites();
logger.debug('Event 3');
return events;
},
'when log writes are enabled': function(events) {
assert.equal(events[0].data[0], 'Event 1');
},
'but not when log writes are disabled': function(events) {
assert.equal(events.length, 2);
assert.equal(events[1].data[0], 'Event 3');
}
}
}).exportTo(module);