Implemented File.autoclose?, File.autoclose=, File.fdatasync and File.size which are new on ruby-1.9.2

Rakefile

@@ -1,3 +1,4 @@
+$LOAD_PATH.unshift File.join(File.dirname(__FILE__))
 $LOAD_PATH.unshift File.join(File.dirname(__FILE__), 'test')
 
 desc "Run tests"

lib/fakefs/file.rb

@@ -228,6 +228,7 @@ module FakeFS
       @path = path
       @mode = mode
       @file = FileSystem.find(path)
+      @autoclose = true
 
       check_modes!
 
@@ -310,7 +311,7 @@ module FakeFS
       self.class.mtime(@path)
     end
 
-    if RUBY_VERSION.to_f >= 1.9
+    if RUBY_VERSION >= "1.9"
       def binmode?
         raise NotImplementedError
       end
@@ -328,6 +329,20 @@ module FakeFS
       end
     end
 
+    if RUBY_VERSION >= "1.9.2"
+      attr_writer :autoclose
+
+      def autoclose?
+        @autoclose
+      end
+
+      alias_method :fdatasync, :flush
+
+      def size
+        File.size(@path)
+      end
+    end
+
   private
 
     def check_modes!

test/fakefs_test.rb

@@ -1459,4 +1459,30 @@ class FakeFSTest < Test::Unit::TestCase
   def here(fname)
     RealFile.expand_path(File.join(RealFile.dirname(__FILE__), fname))
   end
+
+  if RUBY_VERSION >= "1.9.2"
+    def test_file_size
+      File.open("foo", 'w') do |f|
+        f << 'Yada Yada'
+        assert_equal 9, f.size
+      end
+    end
+
+    def test_fdatasync
+      File.open("foo", 'w') do |f|
+        f << 'Yada Yada'
+        assert_nothing_raised do
+          f.fdatasync
+        end
+      end
+    end
+
+    def test_autoclose
+      File.open("foo", 'w') do |f|
+        assert_equal true, f.autoclose?
+        f.autoclose = false
+        assert_equal false, f.autoclose?
+      end
+    end
+  end
 end