diff --git a/test/dateFileAppender-test.js b/test/dateFileAppender-test.js
index 01433e7..ae4f157 100644
--- a/test/dateFileAppender-test.js
+++ b/test/dateFileAppender-test.js
@@ -1,8 +1,9 @@
-var vows = require('vows'),
-    assert = require('assert'),
-    path = require('path'),
-    fs = require('fs'),
-    log4js = require('../lib/log4js');
+"use strict";
+var vows = require('vows')
+, assert = require('assert')
+, path = require('path')
+, fs = require('fs')
+, log4js = require('../lib/log4js');
 
 function removeFile(filename) {
   return function() {
@@ -15,119 +16,126 @@ function removeFile(filename) {
 }
 
 vows.describe('../lib/appenders/dateFile').addBatch({
-    'appender': {
-        'adding multiple dateFileAppenders': {
-            topic: function () {
-                var listenersCount = process.listeners('exit').length,
-                    dateFileAppender = require('../lib/appenders/dateFile'),
-                    count = 5,
-                    logfile;
-
-                while (count--) {
-                    logfile = path.join(__dirname, 'datefa-default-test' + count + '.log');
-                    log4js.addAppender(dateFileAppender.appender(logfile));
-                }
-
-                return listenersCount;
-            },
-            teardown: function() {
-                removeFile('datefa-default-test0.log')();
-                removeFile('datefa-default-test1.log')();
-                removeFile('datefa-default-test2.log')();
-                removeFile('datefa-default-test3.log')();
-                removeFile('datefa-default-test4.log')();
-            },
-
-            'should only add one `exit` listener': function (initialCount) {
-                assert.equal(process.listeners('exit').length, initialCount + 1);
-            }
-        },
-
-        'with default settings': {
-            topic: function() {
-                var that = this,
-                    testFile = path.join(__dirname, 'date-appender-default.log'),
-                    appender = require('../lib/appenders/dateFile').appender(testFile),
-                    logger = log4js.getLogger('default-settings');
-                log4js.clearAppenders();
-                log4js.addAppender(appender, 'default-settings');
-
-                logger.info("This should be in the file.");
-
-                setTimeout(function() {
-                    fs.readFile(testFile, "utf8", that.callback);
-                }, 100);
-
-            },
-            teardown: removeFile('date-appender-default.log'),
-
-            'should write to the file': function(contents) {
-                assert.include(contents, 'This should be in the file');
-            },
-
-            'should use the basic layout': function(contents) {
-                assert.match(contents, /\[\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}\.\d{3}\] \[INFO\] default-settings - /);
-            }
+  'appender': {
+    'adding multiple dateFileAppenders': {
+      topic: function () {
+        var listenersCount = process.listeners('exit').length,
+        dateFileAppender = require('../lib/appenders/dateFile'),
+        count = 5,
+        logfile;
+        
+        while (count--) {
+          logfile = path.join(__dirname, 'datefa-default-test' + count + '.log');
+          log4js.addAppender(dateFileAppender.appender(logfile));
         }
-
+        
+        return listenersCount;
+      },
+      teardown: function() {
+        removeFile('datefa-default-test0.log')();
+        removeFile('datefa-default-test1.log')();
+        removeFile('datefa-default-test2.log')();
+        removeFile('datefa-default-test3.log')();
+        removeFile('datefa-default-test4.log')();
+      },
+      
+      'should only add one `exit` listener': function (initialCount) {
+        assert.equal(process.listeners('exit').length, initialCount + 1);
+      }
+    },
+    
+    'with default settings': {
+      topic: function() {
+        var that = this,
+        testFile = path.join(__dirname, 'date-appender-default.log'),
+        appender = require('../lib/appenders/dateFile').appender(testFile),
+        logger = log4js.getLogger('default-settings');
+        log4js.clearAppenders();
+        log4js.addAppender(appender, 'default-settings');
+        
+        logger.info("This should be in the file.");
+        
+        setTimeout(function() {
+          fs.readFile(testFile, "utf8", that.callback);
+        }, 100);
+        
+      },
+      teardown: removeFile('date-appender-default.log'),
+      
+      'should write to the file': function(contents) {
+        assert.include(contents, 'This should be in the file');
+      },
+      
+      'should use the basic layout': function(contents) {
+        assert.match(
+          contents, 
+            /\[\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}\.\d{3}\] \[INFO\] default-settings - /
+        );
+      }
     }
+    
+  }
 }).addBatch({
   'configure': {
     'with dateFileAppender': {
-	    topic: function() {
-	      var log4js = require('../lib/log4js')
+      topic: function() {
+        var log4js = require('../lib/log4js')
         , logger;
-	      //this config file defines one file appender (to ./date-file-test.log)
-	      //and sets the log level for "tests" to WARN
+        //this config file defines one file appender (to ./date-file-test.log)
+        //and sets the log level for "tests" to WARN
         log4js.configure('test/with-dateFile.json');
         logger = log4js.getLogger('tests');
-	      logger.info('this should not be written to the file');
-	      logger.warn('this should be written to the file');
+        logger.info('this should not be written to the file');
+        logger.warn('this should be written to the file');
         
         fs.readFile(path.join(__dirname, 'date-file-test.log'), 'utf8', this.callback);
-	    },
+      },
       teardown: removeFile('date-file-test.log'),
       
-	    'should load appender configuration from a json file': function(err, contents) {
-	      assert.include(contents, 'this should be written to the file' + require('os').EOL);
+      'should load appender configuration from a json file': function(err, contents) {
+        assert.include(contents, 'this should be written to the file' + require('os').EOL);
         assert.equal(contents.indexOf('this should not be written to the file'), -1);
-	    }
+      }
     },
-	  'with options.alwaysIncludePattern': {
-	    topic: function() {
-	      var log4js = require('../lib/log4js')
-	      , format = require('../lib/date_format')
-	      , logger
-	      , options = {
-		      "appenders": [
-		        {
-		          "category": "tests", 
-		          "type": "dateFile", 
-		          "filename": "test/date-file-test",
-		          "pattern": "-from-MM-dd.log",
-		          "alwaysIncludePattern": true,
-		          "layout": { 
-			          "type": "messagePassThrough" 
-		          }
-		        }
-		      ]
-		    }
-	      , thisTime = format.asString(options.appenders[0].pattern, new Date());
-	      fs.writeFileSync(path.join(__dirname, 'date-file-test' + thisTime), "this is existing data" + require('os').EOL, 'utf8');
-	      log4js.clearAppenders();
-	      log4js.configure(options);
-	      logger = log4js.getLogger('tests');
-	      logger.warn('this should be written to the file with the appended date');
+    'with options.alwaysIncludePattern': {
+      topic: function() {
+        var log4js = require('../lib/log4js')
+        , format = require('../lib/date_format')
+        , logger
+        , options = {
+          "appenders": [
+            {
+              "category": "tests", 
+              "type": "dateFile", 
+              "filename": "test/date-file-test",
+              "pattern": "-from-MM-dd.log",
+              "alwaysIncludePattern": true,
+              "layout": { 
+                "type": "messagePassThrough" 
+              }
+            }
+          ]
+        }
+        , thisTime = format.asString(options.appenders[0].pattern, new Date());
+        fs.writeFileSync(
+          path.join(__dirname, 'date-file-test' + thisTime), 
+          "this is existing data" + require('os').EOL, 
+          'utf8'
+        );
+        log4js.clearAppenders();
+        log4js.configure(options);
+        logger = log4js.getLogger('tests');
+        logger.warn('this should be written to the file with the appended date');
         this.teardown = removeFile('date-file-test' + thisTime);
-	      fs.readFile(path.join(__dirname, 'date-file-test' + thisTime), 'utf8', this.callback);
-	    },
-	    'should create file with the correct pattern': function(contents) {
-	      assert.include(contents, 'this should be written to the file with the appended date');
-	    },
-	    'should not overwrite the file on open (bug found in issue #132)': function(contents) {
-	      assert.include(contents, 'this is existing data');
-	    }
-	  }
+        fs.readFile(path.join(__dirname, 'date-file-test' + thisTime), 'utf8', this.callback);
+      },
+      'should create file with the correct pattern': function(contents) {
+        assert.include(contents, 'this should be written to the file with the appended date');
+      },
+      'should not overwrite the file on open (bug found in issue #132)': function(contents) {
+        assert.include(contents, 'this is existing data');
+      }
+    }
       
   }
 }).exportTo(module);