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@ -80,6 +80,94 @@ vows.describe('log4js').addBatch({
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}
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},
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'fileAppender - with rolling based on size and number of files to keep': {
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topic: function() {
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var watchCb,
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filesOpened = [],
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filesClosed = [],
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filesRenamed = [],
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newFilenames = [],
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existingFiles = ['tests.log'],
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log4js = require('../lib/log4js')({
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watchFile: function(file, options, callback) {
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assert.equal(file, 'tests.log');
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assert.deepEqual(options, { persistent: true, interval: 30000 });
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assert.isFunction(callback);
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watchCb = callback;
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},
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openSync: function(file) {
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assert.equal(file, 'tests.log');
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filesOpened.push(file);
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return file;
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},
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statSync: function(file) {
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if (existingFiles.indexOf(file) < 0) {
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throw new Error("this file doesn't exist");
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} else {
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return true;
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}
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},
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renameSync: function(oldFile, newFile) {
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filesRenamed.push(oldFile);
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existingFiles.push(newFile);
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},
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closeSync: function(file) {
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//it should always be closing tests.log
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assert.equal(file, 'tests.log');
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filesClosed.push(file);
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}
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});
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var appender = log4js.fileAppender('tests.log', log4js.messagePassThroughLayout, 1024, 2, 30);
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return [watchCb, filesOpened, filesClosed, filesRenamed, existingFiles];
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},
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'should close current log file, rename all old ones, open new one on rollover': function(args) {
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var watchCb = args[0], filesOpened = args[1], filesClosed = args[2], filesRenamed = args[3], existingFiles = args[4];
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assert.isFunction(watchCb);
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//tell the watchCb that the file is below the threshold
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watchCb({ size: 891 }, { size: 0 });
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//filesOpened should still be the first one.
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assert.length(filesOpened, 1);
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//tell the watchCb that the file is now over the threshold
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watchCb({ size: 1053 }, { size: 891 });
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//it should have closed the first log file.
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assert.length(filesClosed, 1);
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//it should have renamed the previous log file
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assert.length(filesRenamed, 1);
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//and we should have two files now
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assert.length(existingFiles, 2);
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assert.deepEqual(existingFiles, ['tests.log', 'tests.log.1']);
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//and opened a new log file.
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assert.length(filesOpened, 2);
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//now tell the watchCb that we've flipped over the threshold again
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watchCb({ size: 1025 }, { size: 123 });
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//it should have closed the old file
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assert.length(filesClosed, 2);
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//it should have renamed both the old log file, and the previous '.1' file
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assert.length(filesRenamed, 3);
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assert.deepEqual(filesRenamed, ['tests.log', 'tests.log', 'tests.log.1' ]);
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//it should have renamed 2 more file
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assert.length(existingFiles, 2);
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assert.deepEqual(existingFiles, ['tests.log', 'tests.log.2', 'tests.log.1']);
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//and opened a new log file
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assert.length(filesOpened, 3);
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//tell the watchCb we've flipped again.
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watchCb({ size: 1024 }, { size: 234 });
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//close the old one again.
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assert.length(filesClosed, 3);
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//it should have renamed the old log file and the 2 backups, with the last one being overwritten.
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assert.length(filesRenamed, 5);
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assert.deepEqual(filesRenamed, ['tests.log', 'tests.log', 'tests.log.1', 'tests.log', 'tests.log.1' ]);
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//it should have renamed 2 more files
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assert.length(existingFiles, 5);
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assert.deepEqual(existingFiles, ['tests.log', 'tests.log.2', 'tests.log.1', 'tests.log.2', 'tests.log.1']);
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//and opened a new log file
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assert.length(filesOpened, 4);
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}
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},
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'configure' : {
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topic: function() {
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var messages = {}, fakeFS = {
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@ -90,7 +178,7 @@ vows.describe('log4js').addBatch({
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if (!messages.hasOwnProperty(file)) {
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messages[file] = [];
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}
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messages[file].push(message);
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messages[file].push(message);
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},
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readFileSync: function(file, encoding) {
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return require('fs').readFileSync(file, encoding);
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