From cf1b60e0cfa7d1a8f4a80d686649cc12e73a634e Mon Sep 17 00:00:00 2001
From: hukl <contact@smyck.org>
Date: Fri, 24 Apr 2009 11:43:08 +0200
Subject: Integrated basic Asset upload functionality. You can upload files now
 and use their url in pages.

---
 vendor/plugins/paperclip/test/attachment_test.rb | 742 +++++++++++++++++++++++
 1 file changed, 742 insertions(+)
 create mode 100644 vendor/plugins/paperclip/test/attachment_test.rb

(limited to 'vendor/plugins/paperclip/test/attachment_test.rb')

diff --git a/vendor/plugins/paperclip/test/attachment_test.rb b/vendor/plugins/paperclip/test/attachment_test.rb
new file mode 100644
index 00000000..61ab2a22
--- /dev/null
+++ b/vendor/plugins/paperclip/test/attachment_test.rb
@@ -0,0 +1,742 @@
+require 'test/helper'
+
+class Dummy
+  # This is a dummy class
+end
+
+class AttachmentTest < Test::Unit::TestCase
+  context "Attachment default_options" do
+    setup do
+      rebuild_model
+      @old_default_options = Paperclip::Attachment.default_options.dup
+      @new_default_options = @old_default_options.merge({
+        :path => "argle/bargle",
+        :url => "fooferon",
+        :default_url => "not here.png"
+      })
+    end
+
+    teardown do
+      Paperclip::Attachment.default_options.merge! @old_default_options
+    end
+
+    should "be overrideable" do
+      Paperclip::Attachment.default_options.merge!(@new_default_options)
+      @new_default_options.keys.each do |key|
+        assert_equal @new_default_options[key],
+                     Paperclip::Attachment.default_options[key]
+      end
+    end
+
+    context "without an Attachment" do
+      setup do
+        @dummy = Dummy.new
+      end
+      
+      should "return false when asked exists?" do
+        assert !@dummy.avatar.exists?
+      end
+    end
+
+    context "on an Attachment" do
+      setup do
+        @dummy = Dummy.new
+        @attachment = @dummy.avatar
+      end
+
+      Paperclip::Attachment.default_options.keys.each do |key|
+        should "be the default_options for #{key}" do
+          assert_equal @old_default_options[key], 
+                       @attachment.instance_variable_get("@#{key}"),
+                       key
+        end
+      end
+
+      context "when redefined" do
+        setup do
+          Paperclip::Attachment.default_options.merge!(@new_default_options)
+          @dummy = Dummy.new
+          @attachment = @dummy.avatar
+        end
+
+        Paperclip::Attachment.default_options.keys.each do |key|
+          should "be the new default_options for #{key}" do
+            assert_equal @new_default_options[key],
+                         @attachment.instance_variable_get("@#{key}"),
+                         key
+          end
+        end
+      end
+    end
+  end
+
+  context "An attachment with similarly named interpolations" do
+    setup do
+      rebuild_model :path => ":id.omg/:id-bbq/:idwhat/:id_partition.wtf"
+      @dummy = Dummy.new
+      @dummy.stubs(:id).returns(1024)
+      @file = File.new(File.join(File.dirname(__FILE__),
+                                 "fixtures",
+                                 "5k.png"), 'rb')
+      @dummy.avatar = @file
+    end
+
+    teardown { @file.close }
+
+    should "make sure that they are interpolated correctly" do
+      assert_equal "1024.omg/1024-bbq/1024what/000/001/024.wtf", @dummy.avatar.path
+    end
+  end
+
+  context "An attachment with a :rails_env interpolation" do
+    setup do
+      @rails_env = "blah"
+      @id = 1024
+      rebuild_model :path => ":rails_env/:id.png"
+      @dummy = Dummy.new
+      @dummy.stubs(:id).returns(@id)
+      @file = StringIO.new(".")
+      @dummy.avatar = @file
+    end
+
+    should "return the proper path" do
+      temporary_rails_env(@rails_env) {
+        assert_equal "#{@rails_env}/#{@id}.png", @dummy.avatar.path
+      }
+    end
+  end
+
+  context "An attachment with :convert_options" do
+    setup do
+      rebuild_model :styles => {
+                      :thumb => "100x100",
+                      :large => "400x400"
+                    },
+                    :convert_options => {
+                      :all => "-do_stuff",
+                      :thumb => "-thumbnailize"
+                    }
+      @dummy = Dummy.new
+      @dummy.avatar
+    end
+
+    should "report the correct options when sent #extra_options_for(:thumb)" do
+      assert_equal "-thumbnailize -do_stuff", @dummy.avatar.send(:extra_options_for, :thumb), @dummy.avatar.convert_options.inspect
+    end
+
+    should "report the correct options when sent #extra_options_for(:large)" do
+      assert_equal "-do_stuff", @dummy.avatar.send(:extra_options_for, :large)
+    end
+
+    before_should "call extra_options_for(:thumb/:large)" do
+      Paperclip::Attachment.any_instance.expects(:extra_options_for).with(:thumb)
+      Paperclip::Attachment.any_instance.expects(:extra_options_for).with(:large)
+    end
+  end
+
+  context "An attachment with :convert_options that is a proc" do
+    setup do
+      rebuild_model :styles => {
+                      :thumb => "100x100",
+                      :large => "400x400"
+                    },
+                    :convert_options => {
+                      :all => lambda{|i| i.all },
+                      :thumb => lambda{|i| i.thumb }
+                    }
+      Dummy.class_eval do
+        def all;   "-all";   end
+        def thumb; "-thumb"; end
+      end
+      @dummy = Dummy.new
+      @dummy.avatar
+    end
+
+    should "report the correct options when sent #extra_options_for(:thumb)" do
+      assert_equal "-thumb -all", @dummy.avatar.send(:extra_options_for, :thumb), @dummy.avatar.convert_options.inspect
+    end
+
+    should "report the correct options when sent #extra_options_for(:large)" do
+      assert_equal "-all", @dummy.avatar.send(:extra_options_for, :large)
+    end
+
+    before_should "call extra_options_for(:thumb/:large)" do
+      Paperclip::Attachment.any_instance.expects(:extra_options_for).with(:thumb)
+      Paperclip::Attachment.any_instance.expects(:extra_options_for).with(:large)
+    end
+  end
+  
+  context "An attachment with :path that is a proc" do
+    setup do
+      rebuild_model :path => lambda{ |attachment| "path/#{attachment.instance.other}.:extension" }
+      
+      @file = File.new(File.join(File.dirname(__FILE__),
+                                 "fixtures",
+                                 "5k.png"), 'rb')
+      @dummyA = Dummy.new(:other => 'a')
+      @dummyA.avatar = @file
+      @dummyB = Dummy.new(:other => 'b')
+      @dummyB.avatar = @file
+    end
+    
+    teardown { @file.close }
+    
+    should "return correct path" do
+      assert_equal "path/a.png", @dummyA.avatar.path
+      assert_equal "path/b.png", @dummyB.avatar.path
+    end
+  end
+  
+  context "An attachment with :styles that is a proc" do
+    setup do
+      rebuild_model :styles => lambda{ |attachment| {:thumb => "50x50#", :large => "400x400"} }
+      
+      @attachment = Dummy.new.avatar
+    end
+    
+    should "have the correct geometry" do
+      assert_equal "50x50#", @attachment.styles[:thumb][:geometry]
+    end
+  end
+  
+  context "An attachment with :url that is a proc" do
+    setup do
+      rebuild_model :url => lambda{ |attachment| "path/#{attachment.instance.other}.:extension" }
+      
+      @file = File.new(File.join(File.dirname(__FILE__),
+                                 "fixtures",
+                                 "5k.png"), 'rb')
+      @dummyA = Dummy.new(:other => 'a')
+      @dummyA.avatar = @file
+      @dummyB = Dummy.new(:other => 'b')
+      @dummyB.avatar = @file
+    end
+    
+    teardown { @file.close }
+    
+    should "return correct url" do
+      assert_equal "path/a.png", @dummyA.avatar.url(:original, false)
+      assert_equal "path/b.png", @dummyB.avatar.url(:original, false)
+    end
+  end
+
+  geometry_specs = [ 
+    [ lambda{|z| "50x50#" }, :png ],
+    lambda{|z| "50x50#" },
+    { :geometry => lambda{|z| "50x50#" } }
+  ]
+  geometry_specs.each do |geometry_spec|
+    context "An attachment geometry like #{geometry_spec}" do
+      setup do
+        rebuild_model :styles => { :normal => geometry_spec }
+        @attachment = Dummy.new.avatar
+      end
+
+      should "not run the procs immediately" do
+        assert_kind_of Proc, @attachment.styles[:normal][:geometry]
+      end
+
+      context "when assigned" do
+        setup do
+          @file = StringIO.new(".")
+          @attachment.assign(@file)
+        end
+
+        should "have the correct geometry" do
+          assert_equal "50x50#", @attachment.styles[:normal][:geometry]
+        end
+      end
+    end
+  end
+
+  context "An attachment with both 'normal' and hash-style styles" do
+    setup do
+      rebuild_model :styles => {
+                      :normal => ["50x50#", :png],
+                      :hash => { :geometry => "50x50#", :format => :png }
+                    }
+      @dummy = Dummy.new
+      @attachment = @dummy.avatar
+    end
+
+    [:processors, :whiny, :convert_options, :geometry, :format].each do |field|
+      should "have the same #{field} field" do
+        assert_equal @attachment.styles[:normal][field], @attachment.styles[:hash][field]
+      end
+    end
+  end
+
+  context "An attachment with :processors that is a proc" do
+    setup do
+      rebuild_model :styles => { :normal => '' }, :processors => lambda { |a| [ :test ] }
+      @attachment = Dummy.new.avatar
+    end
+
+    should "not run the proc immediately" do
+      assert_kind_of Proc, @attachment.styles[:normal][:processors]
+    end
+
+    context "when assigned" do
+      setup do
+        @attachment.assign(StringIO.new("."))
+      end
+
+      should "have the correct processors" do
+        assert_equal [ :test ], @attachment.styles[:normal][:processors]
+      end
+    end
+  end
+
+  context "An attachment with erroring processor" do
+    setup do
+      rebuild_model :processor => [:thumbnail], :styles => { :small => '' }, :whiny_thumbnails => true
+      @dummy = Dummy.new
+      Paperclip::Thumbnail.expects(:make).raises(Paperclip::PaperclipError, "cannot be processed.")
+      @file = StringIO.new("...")
+      @file.stubs(:to_tempfile).returns(@file)
+      @dummy.avatar = @file
+    end
+
+    should "correctly forward processing error message to the instance" do
+      @dummy.valid?
+      assert_contains @dummy.errors.full_messages, "Avatar cannot be processed."
+    end
+  end
+
+  context "An attachment with multiple processors" do
+    setup do
+      class Paperclip::Test < Paperclip::Processor; end
+      @style_params = { :once => {:one => 1, :two => 2} }
+      rebuild_model :processors => [:thumbnail, :test], :styles => @style_params
+      @dummy = Dummy.new
+      @file = StringIO.new("...")
+      @file.stubs(:to_tempfile).returns(@file)
+      Paperclip::Test.stubs(:make).returns(@file)
+      Paperclip::Thumbnail.stubs(:make).returns(@file)
+    end
+
+    context "when assigned" do
+      setup { @dummy.avatar = @file }
+
+      before_should "call #make on all specified processors" do
+        expected_params = @style_params[:once].merge({:processors => [:thumbnail, :test], :whiny => nil, :convert_options => ""})
+        Paperclip::Thumbnail.expects(:make).with(@file, expected_params, @dummy.avatar).returns(@file)
+        Paperclip::Test.expects(:make).with(@file, expected_params, @dummy.avatar).returns(@file)
+      end
+      
+      before_should "call #make with attachment passed as third argument" do
+        expected_params = @style_params[:once].merge({:processors => [:thumbnail, :test], :whiny => nil, :convert_options => ""})
+        Paperclip::Test.expects(:make).with(@file, expected_params, @dummy.avatar).returns(@file)
+      end
+    end
+  end
+
+  context "An attachment with no processors defined" do
+    setup do
+      rebuild_model :processors => [], :styles => {:something => 1}
+      @dummy = Dummy.new
+      @file = StringIO.new("...")
+    end
+    should "raise when assigned to" do
+      assert_raises(RuntimeError){ @dummy.avatar = @file }
+    end
+  end
+
+  context "Assigning an attachment with post_process hooks" do
+    setup do
+      rebuild_model :styles => { :something => "100x100#" }
+      Dummy.class_eval do
+        before_avatar_post_process :do_before_avatar
+        after_avatar_post_process :do_after_avatar
+        before_post_process :do_before_all
+        after_post_process :do_after_all
+        def do_before_avatar; end
+        def do_after_avatar; end
+        def do_before_all; end
+        def do_after_all; end
+      end
+      @file  = StringIO.new(".")
+      @file.stubs(:to_tempfile).returns(@file)
+      @dummy = Dummy.new
+      Paperclip::Thumbnail.stubs(:make).returns(@file)
+      @attachment = @dummy.avatar
+    end
+
+    should "call the defined callbacks when assigned" do
+      @dummy.expects(:do_before_avatar).with()
+      @dummy.expects(:do_after_avatar).with()
+      @dummy.expects(:do_before_all).with()
+      @dummy.expects(:do_after_all).with()
+      Paperclip::Thumbnail.expects(:make).returns(@file)
+      @dummy.avatar = @file
+    end
+
+    should "not cancel the processing if a before_post_process returns nil" do
+      @dummy.expects(:do_before_avatar).with().returns(nil)
+      @dummy.expects(:do_after_avatar).with()
+      @dummy.expects(:do_before_all).with().returns(nil)
+      @dummy.expects(:do_after_all).with()
+      Paperclip::Thumbnail.expects(:make).returns(@file)
+      @dummy.avatar = @file
+    end
+
+    should "cancel the processing if a before_post_process returns false" do
+      @dummy.expects(:do_before_avatar).never
+      @dummy.expects(:do_after_avatar).never
+      @dummy.expects(:do_before_all).with().returns(false)
+      @dummy.expects(:do_after_all).never
+      Paperclip::Thumbnail.expects(:make).never
+      @dummy.avatar = @file
+    end
+
+    should "cancel the processing if a before_avatar_post_process returns false" do
+      @dummy.expects(:do_before_avatar).with().returns(false)
+      @dummy.expects(:do_after_avatar).never
+      @dummy.expects(:do_before_all).with().returns(true)
+      @dummy.expects(:do_after_all).never
+      Paperclip::Thumbnail.expects(:make).never
+      @dummy.avatar = @file
+    end
+  end
+
+  context "Assigning an attachment" do
+    setup do
+      rebuild_model :styles => { :something => "100x100#" }
+      @file  = StringIO.new(".")
+      @file.expects(:original_filename).returns("5k.png\n\n")
+      @file.expects(:content_type).returns("image/png\n\n")
+      @file.stubs(:to_tempfile).returns(@file)
+      @dummy = Dummy.new
+      Paperclip::Thumbnail.expects(:make).returns(@file)
+      @dummy.expects(:run_callbacks).with(:before_avatar_post_process, {:original => @file})
+      @dummy.expects(:run_callbacks).with(:before_post_process, {:original => @file})
+      @dummy.expects(:run_callbacks).with(:after_avatar_post_process, {:original => @file, :something => @file})
+      @dummy.expects(:run_callbacks).with(:after_post_process, {:original => @file, :something => @file})
+      @attachment = @dummy.avatar
+      @dummy.avatar = @file
+    end
+
+    should "strip whitespace from original_filename field" do
+      assert_equal "5k.png", @dummy.avatar.original_filename
+    end
+
+    should "strip whitespace from content_type field" do
+      assert_equal "image/png", @dummy.avatar.instance.avatar_content_type
+    end
+  end
+
+  context "Attachment with strange letters" do
+    setup do
+      rebuild_model
+      
+      @not_file = mock
+      @tempfile = mock
+      @not_file.stubs(:nil?).returns(false)
+      @not_file.expects(:size).returns(10)
+      @tempfile.expects(:size).returns(10)
+      @not_file.expects(:to_tempfile).returns(@tempfile)
+      @not_file.expects(:original_filename).returns("sheep_say_bæ.png\r\n")
+      @not_file.expects(:content_type).returns("image/png\r\n")
+      
+      @dummy = Dummy.new
+      @attachment = @dummy.avatar
+      @attachment.expects(:valid_assignment?).with(@not_file).returns(true)
+      @attachment.expects(:queue_existing_for_delete)
+      @attachment.expects(:post_process)
+      @attachment.expects(:valid?).returns(true)
+      @attachment.expects(:validate)
+      @dummy.avatar = @not_file
+    end
+    
+    should "remove strange letters and replace with underscore (_)" do
+      assert_equal "sheep_say_b_.png", @dummy.avatar.original_filename
+    end
+    
+  end
+
+  context "An attachment" do
+    setup do
+      Paperclip::Attachment.default_options.merge!({
+        :path => ":rails_root/tmp/:attachment/:class/:style/:id/:basename.:extension"
+      })
+      FileUtils.rm_rf("tmp")
+      rebuild_model
+      @instance = Dummy.new
+      @attachment = Paperclip::Attachment.new(:avatar, @instance)
+      @file = File.new(File.join(File.dirname(__FILE__),
+                                 "fixtures",
+                                 "5k.png"), 'rb')
+    end
+
+    teardown { @file.close }
+
+    should "raise if there are not the correct columns when you try to assign" do
+      @other_attachment = Paperclip::Attachment.new(:not_here, @instance)
+      assert_raises(Paperclip::PaperclipError) do
+        @other_attachment.assign(@file)
+      end
+    end
+
+    should "return its default_url when no file assigned" do
+      assert @attachment.to_file.nil?
+      assert_equal "/avatars/original/missing.png", @attachment.url
+      assert_equal "/avatars/blah/missing.png", @attachment.url(:blah)
+    end
+    
+    should "return nil as path when no file assigned" do
+      assert @attachment.to_file.nil?
+      assert_equal nil, @attachment.path
+      assert_equal nil, @attachment.path(:blah)
+    end
+    
+    context "with a file assigned in the database" do
+      setup do
+        @attachment.stubs(:instance_read).with(:file_name).returns("5k.png")
+        @attachment.stubs(:instance_read).with(:content_type).returns("image/png")
+        @attachment.stubs(:instance_read).with(:file_size).returns(12345)
+        now = Time.now
+        Time.stubs(:now).returns(now)
+        @attachment.stubs(:instance_read).with(:updated_at).returns(Time.now)
+      end
+
+      should "return a correct url even if the file does not exist" do
+        assert_nil @attachment.to_file
+        assert_match %r{^/system/avatars/#{@instance.id}/blah/5k\.png}, @attachment.url(:blah)
+      end
+
+      should "make sure the updated_at mtime is in the url if it is defined" do
+        assert_match %r{#{Time.now.to_i}$}, @attachment.url(:blah)
+      end
+ 
+      should "make sure the updated_at mtime is NOT in the url if false is passed to the url method" do
+        assert_no_match %r{#{Time.now.to_i}$}, @attachment.url(:blah, false)
+      end
+
+      context "with the updated_at field removed" do
+        setup do
+          @attachment.stubs(:instance_read).with(:updated_at).returns(nil)
+        end
+
+        should "only return the url without the updated_at when sent #url" do
+          assert_match "/avatars/#{@instance.id}/blah/5k.png", @attachment.url(:blah)
+        end
+      end
+
+      should "return the proper path when filename has a single .'s" do
+        assert_equal "./test/../tmp/avatars/dummies/original/#{@instance.id}/5k.png", @attachment.path
+      end
+
+      should "return the proper path when filename has multiple .'s" do
+        @attachment.stubs(:instance_read).with(:file_name).returns("5k.old.png")      
+        assert_equal "./test/../tmp/avatars/dummies/original/#{@instance.id}/5k.old.png", @attachment.path
+      end
+
+      context "when expecting three styles" do
+        setup do
+          styles = {:styles => { :large  => ["400x400", :png],
+                                 :medium => ["100x100", :gif],
+                                 :small => ["32x32#", :jpg]}}
+          @attachment = Paperclip::Attachment.new(:avatar,
+                                                  @instance,
+                                                  styles)
+        end
+
+        context "and assigned a file" do
+          setup do
+            now = Time.now
+            Time.stubs(:now).returns(now)
+            @attachment.assign(@file)
+          end
+
+          should "be dirty" do
+            assert @attachment.dirty?
+          end
+
+          context "and saved" do
+            setup do
+              @attachment.save
+            end
+
+            should "return the real url" do
+              file = @attachment.to_file
+              assert file
+              assert_match %r{^/system/avatars/#{@instance.id}/original/5k\.png}, @attachment.url
+              assert_match %r{^/system/avatars/#{@instance.id}/small/5k\.jpg}, @attachment.url(:small)
+              file.close
+            end
+
+            should "commit the files to disk" do
+              [:large, :medium, :small].each do |style|
+                io = @attachment.to_io(style)
+                assert File.exists?(io)
+                assert ! io.is_a?(::Tempfile)
+                io.close
+              end
+            end
+
+            should "save the files as the right formats and sizes" do
+              [[:large, 400, 61, "PNG"],
+               [:medium, 100, 15, "GIF"],
+               [:small, 32, 32, "JPEG"]].each do |style|
+                cmd = %Q[identify -format "%w %h %b %m" "#{@attachment.path(style.first)}"]
+                out = `#{cmd}`
+                width, height, size, format = out.split(" ")
+                assert_equal style[1].to_s, width.to_s 
+                assert_equal style[2].to_s, height.to_s
+                assert_equal style[3].to_s, format.to_s
+              end
+            end
+
+            should "still have its #file attribute not be nil" do
+              assert ! (file = @attachment.to_file).nil?
+              file.close
+            end
+
+            context "and trying to delete" do
+              setup do
+                @existing_names = @attachment.styles.keys.collect do |style|
+                  @attachment.path(style)
+                end
+              end
+
+              should "delete the files after assigning nil" do
+                @attachment.expects(:instance_write).with(:file_name, nil)
+                @attachment.expects(:instance_write).with(:content_type, nil)
+                @attachment.expects(:instance_write).with(:file_size, nil)
+                @attachment.expects(:instance_write).with(:updated_at, nil)
+                @attachment.assign nil
+                @attachment.save
+                @existing_names.each{|f| assert ! File.exists?(f) }
+              end
+
+              should "delete the files when you call #clear and #save" do
+                @attachment.expects(:instance_write).with(:file_name, nil)
+                @attachment.expects(:instance_write).with(:content_type, nil)
+                @attachment.expects(:instance_write).with(:file_size, nil)
+                @attachment.expects(:instance_write).with(:updated_at, nil)
+                @attachment.clear
+                @attachment.save
+                @existing_names.each{|f| assert ! File.exists?(f) }
+              end
+
+              should "delete the files when you call #delete" do
+                @attachment.expects(:instance_write).with(:file_name, nil)
+                @attachment.expects(:instance_write).with(:content_type, nil)
+                @attachment.expects(:instance_write).with(:file_size, nil)
+                @attachment.expects(:instance_write).with(:updated_at, nil)
+                @attachment.destroy
+                @existing_names.each{|f| assert ! File.exists?(f) }
+              end
+            end
+          end
+        end
+      end
+
+    end
+
+    context "when trying a nonexistant storage type" do
+      setup do
+        rebuild_model :storage => :not_here
+      end
+
+      should "not be able to find the module" do
+        assert_raise(NameError){ Dummy.new.avatar }
+      end
+    end
+  end
+
+  context "An attachment with only a avatar_file_name column" do
+    setup do
+      ActiveRecord::Base.connection.create_table :dummies, :force => true do |table|
+        table.column :avatar_file_name, :string
+      end
+      rebuild_class
+      @dummy = Dummy.new
+      @file = File.new(File.join(File.dirname(__FILE__), "fixtures", "5k.png"), 'rb')
+    end
+
+    teardown { @file.close }
+
+    should "not error when assigned an attachment" do
+      assert_nothing_raised { @dummy.avatar = @file }
+    end
+
+    should "return the time when sent #avatar_updated_at" do
+      now = Time.now
+      Time.stubs(:now).returns(now)
+      @dummy.avatar = @file
+      assert now, @dummy.avatar.updated_at
+    end
+
+    should "return nil when reloaded and sent #avatar_updated_at" do
+      @dummy.save
+      @dummy.reload
+      assert_nil @dummy.avatar.updated_at
+    end
+
+    should "return the right value when sent #avatar_file_size" do
+      @dummy.avatar = @file
+      assert_equal @file.size, @dummy.avatar.size
+    end
+
+    context "and avatar_updated_at column" do
+      setup do
+        ActiveRecord::Base.connection.add_column :dummies, :avatar_updated_at, :timestamp
+        rebuild_class
+        @dummy = Dummy.new
+      end
+
+      should "not error when assigned an attachment" do
+        assert_nothing_raised { @dummy.avatar = @file }
+      end
+
+      should "return the right value when sent #avatar_updated_at" do
+        now = Time.now
+        Time.stubs(:now).returns(now)
+        @dummy.avatar = @file
+        assert_equal now.to_i, @dummy.avatar.updated_at
+      end
+    end
+
+    context "and avatar_content_type column" do
+      setup do
+        ActiveRecord::Base.connection.add_column :dummies, :avatar_content_type, :string
+        rebuild_class
+        @dummy = Dummy.new
+      end
+
+      should "not error when assigned an attachment" do
+        assert_nothing_raised { @dummy.avatar = @file }
+      end
+
+      should "return the right value when sent #avatar_content_type" do
+        @dummy.avatar = @file
+        assert_equal "image/png", @dummy.avatar.content_type
+      end
+    end
+
+    context "and avatar_file_size column" do
+      setup do
+        ActiveRecord::Base.connection.add_column :dummies, :avatar_file_size, :integer
+        rebuild_class
+        @dummy = Dummy.new
+      end
+
+      should "not error when assigned an attachment" do
+        assert_nothing_raised { @dummy.avatar = @file }
+      end
+
+      should "return the right value when sent #avatar_file_size" do
+        @dummy.avatar = @file
+        assert_equal @file.size, @dummy.avatar.size
+      end
+
+      should "return the right value when saved, reloaded, and sent #avatar_file_size" do
+        @dummy.avatar = @file
+        @dummy.save
+        @dummy = Dummy.find(@dummy.id)
+        assert_equal @file.size, @dummy.avatar.size
+      end
+    end
+  end
+end
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