log4js-node/test/log4js-test.js

424 lines
12 KiB
JavaScript

"use strict";
var should = require('should')
, fs = require('fs')
, sandbox = require('sandboxed-module')
, log4js = require('../lib/log4js');
describe('../lib/log4js', function() {
describe('#getLogger', function() {
it('should return a Logger', function() {
log4js.getLogger().should.have.property('debug').be.a('function');
log4js.getLogger().should.have.property('info').be.a('function');
log4js.getLogger().should.have.property('error').be.a('function');
});
});
describe('#configure', function() {
it('should require an object or a filename', function() {
[
undefined,
null,
true,
42,
function() {}
].forEach(function(arg) {
(function() { log4js.configure(arg); }).should.throw(
"You must specify configuration as an object or a filename."
);
});
});
it('should complain if the file cannot be found', function() {
(function() { log4js.configure("pants"); }).should.throw(
"ENOENT, no such file or directory 'pants'"
);
});
it('should pick up the configuration filename from env.LOG4JS_CONFIG', function() {
process.env.LOG4JS_CONFIG = 'made-up-file';
(function() { log4js.configure(); }).should.throw(
"ENOENT, no such file or directory 'made-up-file'"
);
delete process.env.LOG4JS_CONFIG;
});
it('should complain if the config does not specify any appenders', function() {
(function() { log4js.configure({}); }).should.throw(
"You must specify at least one appender."
);
(function() { log4js.configure({ appenders: {} }); }).should.throw(
"You must specify at least one appender."
);
});
it(
'should complain if the config does not specify an appender for the default category',
function() {
(function() {
log4js.configure(
{
appenders: {
"console": { type: "console" }
},
categories: {}
}
);
}).should.throw(
"You must specify an appender for the default category"
);
(function() {
log4js.configure({
appenders: {
"console": { type: "console" }
},
categories: {
"cheese": { level: "DEBUG", appenders: [ "console" ] }
}
});
}).should.throw(
"You must specify an appender for the default category"
);
}
);
it('should complain if a category does not specify level or appenders', function() {
(function() {
log4js.configure(
{
appenders: { "console": { type: "console" } },
categories: {
"default": { thing: "thing" }
}
}
);
}).should.throw(
"You must specify a level for category 'default'."
);
(function() {
log4js.configure(
{
appenders: { "console": { type: "console" } },
categories: {
"default": { level: "DEBUG" }
}
}
);
}).should.throw(
"You must specify an appender for category 'default'."
);
});
it('should complain if a category specifies a level that does not exist', function() {
(function() {
log4js.configure(
{
appenders: { "console": { type: "console" }},
categories: {
"default": { level: "PICKLES" }
}
}
);
}).should.throw(
"Level 'PICKLES' is not valid for category 'default'. " +
"Acceptable values are: OFF, TRACE, DEBUG, INFO, WARN, ERROR, FATAL."
);
});
it('should complain if a category specifies an appender that does not exist', function() {
(function() {
log4js.configure(
{
appenders: { "console": { type: "console" }},
categories: {
"default": { level: "DEBUG", appenders: [ "cheese" ] }
}
}
);
}).should.throw(
"Appender 'cheese' for category 'default' does not exist. Known appenders are: console."
);
});
before(function(done) {
fs.unlink("test.log", function (err) { done(); });
});
it('should set up the included appenders', function(done) {
log4js.configure({
appenders: {
"file": { type: "file", filename: "test.log" }
},
categories: {
default: { level: "DEBUG", appenders: [ "file" ] }
}
});
log4js.getLogger('test').debug("cheese");
setTimeout(function() {
fs.readFile("test.log", "utf-8", function(err, contents) {
contents.should.include("cheese");
done(err);
});
}, 50);
});
after(function(done) {
fs.unlink("test.log", function (err) { done(); });
});
it('should set up third-party appenders', function() {
var events = [], log4js_sandbox = sandbox.require(
'../lib/log4js',
{
requires: {
'cheese': function() {
return function() {
return function(evt) { events.push(evt); };
};
}
}
}
);
log4js_sandbox.configure({
appenders: {
"thing": { type: "cheese" }
},
categories: {
default: { level: "DEBUG", appenders: [ "thing" ] }
}
});
log4js_sandbox.getLogger().info("edam");
events.should.have.length(1);
events[0].data[0].should.eql("edam");
});
it('should only load third-party appenders once', function() {
var moduleCalled = 0
, log4js_sandbox = sandbox.require(
'../lib/log4js',
{
requires: {
'cheese': function() {
moduleCalled += 1;
return function() {
return function() {};
};
}
}
}
);
log4js_sandbox.configure({
appenders: {
"thing1": { type: "cheese" },
"thing2": { type: "cheese" }
},
categories: {
default: { level: "DEBUG", appenders: [ "thing1", "thing2" ] }
}
});
moduleCalled.should.eql(1);
});
it('should pass layouts and levels to appender modules', function() {
var layouts
, levels
, log4js_sandbox = sandbox.require(
'../lib/log4js',
{
requires: {
'cheese': function(arg1, arg2) {
layouts = arg1;
levels = arg2;
return function() {
return function() {};
};
}
}
}
);
log4js_sandbox.configure({
appenders: {
"thing": { type: "cheese" }
},
categories: {
"default": { level: "debug", appenders: [ "thing" ] }
}
});
layouts.should.have.property("basicLayout");
levels.should.have.property("toLevel");
});
it('should pass config and appenderByName to appender makers', function() {
var otherAppender = function() { /* I do nothing */ }
, config
, other
, log4js_sandbox = sandbox.require(
'../lib/log4js',
{
requires: {
'other': function() {
return function() {
return otherAppender;
};
},
'cheese': function() {
return function(arg1, arg2) {
config = arg1;
other = arg2("other");
return function() {};
};
}
}
}
);
log4js_sandbox.configure({
appenders: {
"other": { type: "other" },
"thing": { type: "cheese", something: "something" }
},
categories: {
default: { level: "debug", appenders: [ "other", "thing" ] }
}
});
other.should.equal(otherAppender);
config.should.have.property("something", "something");
});
it('should complain about unknown appenders', function() {
(function() {
log4js.configure({
appenders: {
"thing": { type: "madeupappender" }
},
categories: {
default: { level: "DEBUG", appenders: [ "thing" ] }
}
});
}).should.throw(
"Could not load appender of type 'madeupappender'."
);
});
it('should read config from a file', function() {
var events = [], log4js_sandbox = sandbox.require(
'../lib/log4js',
{
requires: {
'cheese': function() {
return function() {
return function(event) { events.push(event); };
};
}
}
}
);
log4js_sandbox.configure(__dirname + "/with-cheese.json");
log4js_sandbox.getLogger().debug("gouda");
events.should.have.length(1);
events[0].data[0].should.eql("gouda");
});
it('should set up log levels for categories', function() {
var events = []
, noisyLogger
, log4js_sandbox = sandbox.require(
'../lib/log4js',
{
requires: {
'cheese': function() {
return function() {
return function(event) { events.push(event); };
};
}
}
}
);
log4js_sandbox.configure(__dirname + "/with-cheese.json");
noisyLogger = log4js_sandbox.getLogger("noisy");
noisyLogger.debug("pow");
noisyLogger.info("crash");
noisyLogger.warn("bang");
noisyLogger.error("boom");
noisyLogger.fatal("aargh");
events.should.have.length(2);
events[0].data[0].should.eql("boom");
events[1].data[0].should.eql("aargh");
});
it('should have a default log level for all categories', function() {
var events = []
, log4js_sandbox = sandbox.require(
'../lib/log4js',
{
requires: {
'cheese': function() {
return function() {
return function(event) { events.push(event); };
};
}
}
}
);
//with-cheese.json only specifies categories noisy and default
//unspecified categories should use the default category config
log4js_sandbox.configure(__dirname + "/with-cheese.json");
log4js_sandbox.getLogger("surprise").trace("not seen");
log4js_sandbox.getLogger("surprise").info("should be seen");
events.should.have.length(1);
events[0].data[0].should.eql("should be seen");
});
});
describe('with no configuration', function() {
var events = []
, log4js_sandboxed = sandbox.require(
'../lib/log4js',
{
requires: {
'./appenders/console': function() {
return function() {
return function(event) { events.push(event); };
};
}
}
}
);
log4js_sandboxed.getLogger("blah").debug("goes to console");
log4js_sandboxed.getLogger("yawn").trace("does not go to console");
log4js_sandboxed.getLogger().error("also goes to console");
it('should log events of debug level and higher to console', function() {
events.should.have.length(2);
events[0].data[0].should.eql("goes to console");
events[0].category.should.eql("blah");
events[0].level.toString().should.eql("DEBUG");
events[1].data[0].should.eql("also goes to console");
events[1].category.should.eql("default");
events[1].level.toString().should.eql("ERROR");
});
});
});