Improved Fake::File inspect method to output more like a real File. A…

…dded File.open test

lib/fakefs/file.rb

@@ -268,6 +268,12 @@ def to_io
       self
     end
 
+    def inspect
+      # TODO should be a test to see if file is closed before
+      # adding (closed) to output
+      "#<File:#{@path.gsub("//", "/")} (closed)>"
+    end
+
     def write_nonblock(string)
       raise NotImplementedError
     end

test/passing_fs_tests.rb

@@ -47,6 +47,21 @@ def test_fileutils_copy
     end
   end
 
+  def test_file_open
+    compare_with_real do
+      check_value File.open(mp("test.txt"), "w") { |f| f.write("hello") }
+      check_filesystem
+      Dir.mkdir mp("Home")
+
+      file = File.open(mp("Home/comics.txt"), "a") do |f|                            
+        f << "Cat and Girl: http://catandgirl.com/\n"                      
+      end
+
+      check_value file.inspect
+      check_filesystem
+    end
+  end
+
 end