diff --git a/test/exemplars/attachment_exemplar.rb b/test/exemplars/attachment_exemplar.rb
index e86c4d32..8100fe90 100644
--- a/test/exemplars/attachment_exemplar.rb
+++ b/test/exemplars/attachment_exemplar.rb
@@ -12,10 +12,6 @@ class Attachment < ActiveRecord::Base
   end
 
   def self.generate_file
-    @file = 'a_file.png'
-    @file.stubs(:original_filename).returns('a_file.png')
-    @file.stubs(:content_type).returns('image/png')
-    @file.stubs(:read).returns(false)
-    @file
+    @file = mock_file
   end
 end
diff --git a/test/test_helper.rb b/test/test_helper.rb
index cb043fa8..1f735f5f 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -61,6 +61,16 @@ class ActiveSupport::TestCase
   def uploaded_test_file(name, mime)
     ActionController::TestUploadedFile.new(ActiveSupport::TestCase.fixture_path + "/files/#{name}", mime)
   end
+
+  # Mock out a file
+  def mock_file
+    file = 'a_file.png'
+    file.stubs(:size).returns(32)
+    file.stubs(:original_filename).returns('a_file.png')
+    file.stubs(:content_type).returns('image/png')
+    file.stubs(:read).returns(false)
+    file
+  end
   
   # Use a temporary directory for attachment related tests
   def set_tmp_attachments_directory
diff --git a/test/unit/attachment_test.rb b/test/unit/attachment_test.rb
index f04aca4d..b9ebbb67 100644
--- a/test/unit/attachment_test.rb
+++ b/test/unit/attachment_test.rb
@@ -68,17 +68,10 @@ class AttachmentTest < ActiveSupport::TestCase
     should "add unsaved files to the object as unsaved attachments" do
       # Max size of 0 to force Attachment creation failures
       with_settings(:attachment_max_size => 0) do
-        # Mock out a file
-        @file = 'a_file.png'
-        @file.stubs(:size).returns(32)
-        @file.stubs(:original_filename).returns('a_file.png')
-        @file.stubs(:content_type).returns('image/png')
-        @file.stubs(:read).returns(false)
-        
         @project = Project.generate!
         response = Attachment.attach_files(@project, {
-                                             '1' => {'file' => @file, 'description' => 'test'},
-                                             '2' => {'file' => @file, 'description' => 'test'}
+                                             '1' => {'file' => mock_file, 'description' => 'test'},
+                                             '2' => {'file' => mock_file, 'description' => 'test'}
                                            })
 
         assert response[:unsaved].present?