Working date rolling file stream

test/streams/DateRollingFileStream-test.js

@@ -1,14 +1,26 @@
 var vows = require('vows'),
     assert = require('assert'),
     fs = require('fs'),
-    DateRollingFileStream = require('../../lib/streams').DateRollingFileStream;
+    DateRollingFileStream = require('../../lib/streams').DateRollingFileStream,
+    testTime = new Date(2012, 8, 12, 10, 37, 11);
+
+function cleanUp(filename) {
+    return function() {
+        fs.unlink(filename);
+    };
+}
+
+function now() {
+    return testTime.getTime();
+}
 
 vows.describe('DateRollingFileStream').addBatch({
     'arguments': {
-        topic: new DateRollingFileStream('test-date-rolling-file-stream', 'yyyy-mm-dd.hh'),
+        topic: new DateRollingFileStream(__dirname + '/test-date-rolling-file-stream-1', 'yyyy-mm-dd.hh'),
+        teardown: cleanUp(__dirname + '/test-date-rolling-file-stream-1'),
 
         'should take a filename and a pattern and return a FileWriteStream': function(stream) {
-            assert.equal(stream.filename, 'test-date-rolling-file-stream');
+            assert.equal(stream.filename, __dirname + '/test-date-rolling-file-stream-1');
             assert.equal(stream.pattern, 'yyyy-mm-dd.hh');
             assert.instanceOf(stream, fs.FileWriteStream);
         },
@@ -20,15 +32,17 @@ vows.describe('DateRollingFileStream').addBatch({
     },
 
     'default arguments': {
-        topic: new DateRollingFileStream('test-date-rolling-file-stream'),
+        topic: new DateRollingFileStream(__dirname + '/test-date-rolling-file-stream-2'),
+        teardown: cleanUp(__dirname + '/test-date-rolling-file-stream-2'),
 
-        'pattern should be yyyy-mm-dd': function(stream) {
-            assert.equal(stream.pattern, 'yyyy-mm-dd');
+        'pattern should be .yyyy-MM-dd': function(stream) {
+            assert.equal(stream.pattern, '.yyyy-MM-dd');
         }
     },
 
     'with stream arguments': {
-        topic: new DateRollingFileStream('test-rolling-file-stream', 'yyyy-mm-dd', { mode: 0666 }),
+        topic: new DateRollingFileStream(__dirname + '/test-date-rolling-file-stream-3', 'yyyy-MM-dd', { mode: 0666 }),
+        teardown: cleanUp(__dirname + '/test-date-rolling-file-stream-3'),
 
         'should pass them to the underlying stream': function(stream) {
             assert.equal(stream.mode, 0666);
@@ -36,13 +50,73 @@ vows.describe('DateRollingFileStream').addBatch({
     },
 
     'with stream arguments but no pattern': {
-        topic: new DateRollingFileStream('test-rolling-file-stream', { mode: 0666 }),
+        topic: new DateRollingFileStream(__dirname + '/test-date-rolling-file-stream-4', { mode: 0666 }),
+        teardown: cleanUp(__dirname + '/test-date-rolling-file-stream-4'),
 
         'should pass them to the underlying stream': function(stream) {
             assert.equal(stream.mode, 0666);
         },
         'should use default pattern': function(stream) {
-            assert.equal(stream.pattern, 'yyyy-mm-dd');
+            assert.equal(stream.pattern, '.yyyy-MM-dd');
+        }
+    },
+
+    'with a pattern of .yyyy-MM-dd': {
+        topic: function() {
+            var that = this,
+                stream = new DateRollingFileStream(__dirname + '/test-date-rolling-file-stream-5', '.yyyy-MM-dd', null, now);
+            stream.on("open", function() {
+                stream.write("First message\n");
+                //wait for the file system to catch up with us
+                that.callback(null, stream);
+            });
+        },
+        teardown: cleanUp(__dirname + '/test-date-rolling-file-stream-5'),
+
+        'should create a file with the base name': {
+            topic: function(stream) {
+                fs.readFile(__dirname + '/test-date-rolling-file-stream-5', this.callback);
+            },
+            'file should contain first message': function(result) {
+                assert.equal(result.toString(), "First message\n");
+            }
+        },
+
+        'when the day changes': {
+            topic: function(stream) {
+                testTime = new Date(2012, 8, 13, 0, 10, 12);
+                stream.write("Second message\n");
+                setTimeout(this.callback, 100);
+            },
+            teardown: cleanUp(__dirname + '/test-date-rolling-file-stream-5.2012-09-12'),
+
+
+            'the number of files': {
+                topic: function() {
+                    fs.readdir(__dirname, this.callback);
+                },
+                'should be two': function(files) {
+                    assert.equal(files.filter(function(file) { return file.indexOf('test-date-rolling-file-stream-5') > -1; }).length, 2);
+                }
+            },
+
+            'the file without a date': {
+                topic: function() {
+                    fs.readFile(__dirname + '/test-date-rolling-file-stream-5', this.callback);
+                },
+                'should contain the second message': function(contents) {
+                    assert.equal(contents.toString(), "Second message\n");
+                }
+            },
+
+            'the file with the date': {
+                topic: function() {
+                    fs.readFile(__dirname + '/test-date-rolling-file-stream-5.2012-09-12', this.callback);
+                },
+                'should contain the first message': function(contents) {
+                    assert.equal(contents.toString(), "First message\n");
+                }
+            }
         }
     }