replace create_uploaded_file in specs

mock_uploaded_file creates a Rack::Test::UploadedFile, which should behave equally to a real uploaded file,
but is also treated correctly by Rack::Test

spec/controllers/attachments_controller_spec.rb

@@ -101,7 +101,7 @@ describe AttachmentsController, type: :controller do
   end
 
   describe '#show' do
-    let(:file) { OpenProject::Files.create_uploaded_file name: 'foobar.txt' }
+    let(:file) { OpenProject::Files.mock_uploaded_file name: 'foobar.txt' }
     let(:work_package) { FactoryGirl.create :work_package, project: project }
     let(:uploader) { nil }
 

spec/exemplars/attachment_exemplar.rb

@@ -41,6 +41,6 @@ class Attachment < ActiveRecord::Base
   end
 
   def self.generate_file
-    @file = Test::Files.create_uploaded_file
+    @file = Test::Files.mock_uploaded_file
   end
 end

spec/factories/attachment_factory.rb

@@ -37,7 +37,7 @@ FactoryGirl.define do
 
     content_type 'application/binary'
     sequence(:file) do |n|
-      OpenProject::Files.create_uploaded_file name: filename || "file-#{n}.test",
+      OpenProject::Files.mock_uploaded_file name: filename || "file-#{n}.test",
                                               content_type: content_type,
                                               binary: true
     end

spec/factories/file_factory.rb

@@ -50,7 +50,7 @@ FactoryGirl.define do
     binary        false
 
     initialize_with do
-      OpenProject::Files.create_uploaded_file(
+      OpenProject::Files.mock_uploaded_file(
         name:         name,
         content:      content,
         content_type: content_type,

spec/legacy/support/legacy_assertions.rb

@@ -49,7 +49,7 @@ module LegacyAssertionsAndHelpers
           a.file = uploaded_test_file a.disk_filename, a.attributes['content_type'],
                                       original_filename: a.attributes['filename']
         rescue # imaginary file: create it on-the-fly
-          a.file = create_uploaded_file name: a.attributes['filename'],
+          a.file = mock_uploaded_file name: a.attributes['filename'],
                                         content_type: a.attributes['content_type']
         end
 

spec/legacy/unit/attachment_spec.rb

@@ -69,8 +69,8 @@ describe Attachment, type: :model do
         @issue = WorkPackage.find(1)
         response = Attachment.attach_files(
           @issue,
-          '1' => { 'file' => create_uploaded_file, 'description' => 'test 1' },
-          '2' => { 'file' => create_uploaded_file, 'description' => 'test 2' })
+          '1' => { 'file' => mock_uploaded_file, 'description' => 'test 1' },
+          '2' => { 'file' => mock_uploaded_file, 'description' => 'test 2' })
 
         assert response[:unsaved].present?
         assert_equal 2, response[:unsaved].length

spec/legacy/unit/helpers/application_helper_spec.rb

@@ -47,7 +47,7 @@ describe ApplicationHelper, type: :helper do
 
     @issue = FactoryGirl.create :work_package, project: @project, author: @project_member, type: @project.types.first
 
-    file = create_uploaded_file name: 'logo.gif',
+    file = mock_uploaded_file name: 'logo.gif',
                                 content_type: 'image/gif',
                                 content: 'not actually a gif',
                                 binary: true