diff --git a/db/schema.rb b/db/schema.rb
index de6655544..f8d638a5f 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -438,13 +438,6 @@ ActiveRecord::Schema.define(:version => 20150514133640) do
 
   add_index "delayed_jobs", ["priority", "run_at"], :name => "delayed_jobs_priority"
 
-  create_table "discuss_demos", :force => true do |t|
-    t.string   "title"
-    t.text     "body"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
   create_table "documents", :force => true do |t|
     t.integer  "project_id",                :default => 0,  :null => false
     t.integer  "category_id",               :default => 0,  :null => false
diff --git a/test/test_helper.rb b/test/test_helper.rb
index b7d786704..4e75da59b 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,521 +1,521 @@
-require 'rubygems'
-# require 'spork'
-#uncomment the following line to use spork with the debugger
-#require 'spork/ext/ruby-debug'
-
-# Spork.prefork do
-#   # Loading more in this block will cause your tests to run faster. However,
-#   # if you change any configuration or code from libraries loaded here, you'll
-#   # need to restart spork for it take effect.
-# 	ENV["RAILS_ENV"] = "test"
-# 	require File.expand_path('../../config/environment', __FILE__)
-# 	require 'rails/test_help'
-#
-# end
-#
-# Spork.each_run do
-#   # This code will be run each time you run your specs.
-#
-# end
-
-# --- Instructions ---
-# Sort the contents of this file into a Spork.prefork and a Spork.each_run
-# block.
-#
-# The Spork.prefork block is run only once when the spork server is started.
-# You typically want to place most of your (slow) initializer code in here, in
-# particular, require'ing any 3rd-party gems that you don't normally modify
-# during development.
-#
-# The Spork.each_run block is run each time you run your specs.  In case you
-# need to load files that tend to change during development, require them here.
-# With Rails, your application modules are loaded automatically, so sometimes
-# this block can remain empty.
-#
-# Note: You can modify files loaded *from* the Spork.each_run block without
-# restarting the spork server.  However, this file itself will not be reloaded,
-# so if you change any of the code inside the each_run block, you still need to
-# restart the server.  In general, if you have non-trivial code in this file,
-# it's advisable to move it into a separate file so you can easily edit it
-# without restarting spork.  (For example, with RSpec, you could move
-# non-trivial code into a file spec/support/my_helper.rb, making sure that the
-# spec/support/* files are require'd from inside the each_run block.)
-#
-# Any code that is left outside the two blocks will be run during preforking
-# *and* during each_run -- that's probably not what you want.
-#
-# These instructions should self-destruct in 10 seconds.  If they don't, feel
-# free to delete them.
-
-
-
-
-# Redmine - project management software
-# Copyright (C) 2006-2013  Jean-Philippe Lang
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-
-#require 'shoulda'
-ENV["RAILS_ENV"] = "test"
-require File.expand_path(File.dirname(__FILE__) + "/../config/environment")
-require 'rails/test_help'
-require Rails.root.join('test', 'mocks', 'open_id_authentication_mock.rb').to_s
-
-require File.expand_path(File.dirname(__FILE__) + '/object_helpers')
-include ObjectHelpers
-
-class ActiveSupport::TestCase
-  include ActionDispatch::TestProcess
-
-  self.use_transactional_fixtures = true
-  self.use_instantiated_fixtures  = false
-
-  def log_user(login, password)
-    User.anonymous
-    get "/login"
-    assert_equal nil, session[:user_id]
-    puts response.response_code()
-    assert_response :success
-    assert_template "account/login"
-    post "/login", :username => login, :password => password
-    assert_equal login, User.find(session[:user_id]).login
-  end
-
-  def uploaded_test_file(name, mime)
-    fixture_file_upload("files/#{name}", mime, true)
-  end
-
-  def credentials(user, password=nil)
-    {'HTTP_AUTHORIZATION' => ActionController::HttpAuthentication::Basic.encode_credentials(user, password || user)}
-  end
-
-  # Mock out a file
-  def self.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
-
-  def mock_file
-    self.class.mock_file
-  end
-
-  def mock_file_with_options(options={})
-    file = ''
-    file.stubs(:size).returns(32)
-    original_filename = options[:original_filename] || nil
-    file.stubs(:original_filename).returns(original_filename)
-    content_type = options[:content_type] || nil
-    file.stubs(:content_type).returns(content_type)
-    file.stubs(:read).returns(false)
-    file
-  end
-
-  # Use a temporary directory for attachment related tests
-  def set_tmp_attachments_directory
-    Dir.mkdir "#{Rails.root}/tmp/test" unless File.directory?("#{Rails.root}/tmp/test")
-    unless File.directory?("#{Rails.root}/tmp/test/attachments")
-      Dir.mkdir "#{Rails.root}/tmp/test/attachments"
-    end
-    Attachment.storage_path = "#{Rails.root}/tmp/test/attachments"
-  end
-
-  def set_fixtures_attachments_directory
-    Attachment.storage_path = "#{Rails.root}/test/fixtures/files"
-  end
-
-  def with_settings(options, &block)
-    saved_settings = options.keys.inject({}) do |h, k|
-      h[k] = case Setting[k]
-        when Symbol, false, true, nil
-          Setting[k]
-        else
-          Setting[k].dup
-        end
-      h
-    end
-    options.each {|k, v| Setting[k] = v}
-    yield
-  ensure
-    saved_settings.each {|k, v| Setting[k] = v} if saved_settings
-  end
-
-  # Yields the block with user as the current user
-  def with_current_user(user, &block)
-    saved_user = User.current
-    User.current = user
-    yield
-  ensure
-    User.current = saved_user
-  end
-
-  def change_user_password(login, new_password)
-    user = User.first(:conditions => {:login => login})
-    user.password, user.password_confirmation = new_password, new_password
-    user.save!
-  end
-
-  def self.ldap_configured?
-    @test_ldap = Net::LDAP.new(:host => '127.0.0.1', :port => 389)
-    return @test_ldap.bind
-  rescue Exception => e
-    # LDAP is not listening
-    return nil
-  end
-
-  def self.convert_installed?
-    Redmine::Thumbnail.convert_available?
-  end
-
-  # Returns the path to the test +vendor+ repository
-  def self.repository_path(vendor)
-    Rails.root.join("tmp/test/#{vendor.downcase}_repository").to_s
-  end
-
-  # Returns the url of the subversion test repository
-  def self.subversion_repository_url
-    path = repository_path('subversion')
-    path = '/' + path unless path.starts_with?('/')
-    "file://#{path}"
-  end
-
-  # Returns true if the +vendor+ test repository is configured
-  def self.repository_configured?(vendor)
-    File.directory?(repository_path(vendor))
-  end
-
-  def repository_path_hash(arr)
-    hs = {}
-    hs[:path]  = arr.join("/")
-    hs[:param] = arr.join("/")
-    hs
-  end
-
-  def assert_save(object)
-    saved = object.save
-    message = "#{object.class} could not be saved"
-    errors = object.errors.full_messages.map {|m| "- #{m}"}
-    message << ":\n#{errors.join("\n")}" if errors.any?
-    assert_equal true, saved, message
-  end
-
-  def assert_error_tag(options={})
-    assert_tag({:attributes => { :id => 'errorExplanation' }}.merge(options))
-  end
-
-  def assert_include(expected, s, message=nil)
-    assert s.include?(expected), (message || "\"#{expected}\" not found in \"#{s}\"")
-  end
-
-  def assert_not_include(expected, s)
-    assert !s.include?(expected), "\"#{expected}\" found in \"#{s}\""
-  end
-
-  def assert_select_in(text, *args, &block)
-    d = HTML::Document.new(CGI::unescapeHTML(String.new(text))).root
-    assert_select(d, *args, &block)
-  end
-
-  def assert_mail_body_match(expected, mail)
-    if expected.is_a?(String)
-      assert_include expected, mail_body(mail)
-    else
-      assert_match expected, mail_body(mail)
-    end
-  end
-
-  def assert_mail_body_no_match(expected, mail)
-    if expected.is_a?(String)
-      assert_not_include expected, mail_body(mail)
-    else
-      assert_no_match expected, mail_body(mail)
-    end
-  end
-
-  def mail_body(mail)
-    mail.parts.first.body.encoded
-  end
-end
-
-module Redmine
-  module ApiTest
-    # Base class for API tests
-    class Base < ActionDispatch::IntegrationTest
-      # Test that a request allows the three types of API authentication
-      #
-      # * HTTP Basic with username and password
-      # * HTTP Basic with an api key for the username
-      # * Key based with the key=X parameter
-      #
-      # @param [Symbol] http_method the HTTP method for request (:get, :post, :put, :delete)
-      # @param [String] url the request url
-      # @param [optional, Hash] parameters additional request parameters
-      # @param [optional, Hash] options additional options
-      # @option options [Symbol] :success_code Successful response code (:success)
-      # @option options [Symbol] :failure_code Failure response code (:unauthorized)
-      def self.should_allow_api_authentication(http_method, url, parameters={}, options={})
-        should_allow_http_basic_auth_with_username_and_password(http_method, url, parameters, options)
-        should_allow_http_basic_auth_with_key(http_method, url, parameters, options)
-        should_allow_key_based_auth(http_method, url, parameters, options)
-      end
-    
-      # Test that a request allows the username and password for HTTP BASIC
-      #
-      # @param [Symbol] http_method the HTTP method for request (:get, :post, :put, :delete)
-      # @param [String] url the request url
-      # @param [optional, Hash] parameters additional request parameters
-      # @param [optional, Hash] options additional options
-      # @option options [Symbol] :success_code Successful response code (:success)
-      # @option options [Symbol] :failure_code Failure response code (:unauthorized)
-      def self.should_allow_http_basic_auth_with_username_and_password(http_method, url, parameters={}, options={})
-        success_code = options[:success_code] || :success
-        failure_code = options[:failure_code] || :unauthorized
-    
-        context "should allow http basic auth using a username and password for #{http_method} #{url}" do
-          context "with a valid HTTP authentication" do
-            setup do
-              @user = User.generate! do |user|
-                user.admin = true
-                user.password = 'my_password'
-              end
-              send(http_method, url, parameters, credentials(@user.login, 'my_password'))
-            end
-    
-            should_respond_with success_code
-            should_respond_with_content_type_based_on_url(url)
-            should "login as the user" do
-              assert_equal @user, User.current
-            end
-          end
-    
-          context "with an invalid HTTP authentication" do
-            setup do
-              @user = User.generate!
-              send(http_method, url, parameters, credentials(@user.login, 'wrong_password'))
-            end
-    
-            should_respond_with failure_code
-            should_respond_with_content_type_based_on_url(url)
-            should "not login as the user" do
-              assert_equal User.anonymous, User.current
-            end
-          end
-    
-          context "without credentials" do
-            setup do
-              send(http_method, url, parameters)
-            end
-    
-            should_respond_with failure_code
-            should_respond_with_content_type_based_on_url(url)
-            should "include_www_authenticate_header" do
-              assert @controller.response.headers.has_key?('WWW-Authenticate')
-            end
-          end
-        end
-      end
-    
-      # Test that a request allows the API key with HTTP BASIC
-      #
-      # @param [Symbol] http_method the HTTP method for request (:get, :post, :put, :delete)
-      # @param [String] url the request url
-      # @param [optional, Hash] parameters additional request parameters
-      # @param [optional, Hash] options additional options
-      # @option options [Symbol] :success_code Successful response code (:success)
-      # @option options [Symbol] :failure_code Failure response code (:unauthorized)
-      def self.should_allow_http_basic_auth_with_key(http_method, url, parameters={}, options={})
-        success_code = options[:success_code] || :success
-        failure_code = options[:failure_code] || :unauthorized
-    
-        context "should allow http basic auth with a key for #{http_method} #{url}" do
-          context "with a valid HTTP authentication using the API token" do
-            setup do
-              @user = User.generate! do |user|
-                user.admin = true
-              end
-              @token = Token.create!(:user => @user, :action => 'api')
-              send(http_method, url, parameters, credentials(@token.value, 'X'))
-            end
-            should_respond_with success_code
-            should_respond_with_content_type_based_on_url(url)
-            should_be_a_valid_response_string_based_on_url(url)
-            should "login as the user" do
-              assert_equal @user, User.current
-            end
-          end
-    
-          context "with an invalid HTTP authentication" do
-            setup do
-              @user = User.generate!
-              @token = Token.create!(:user => @user, :action => 'feeds')
-              send(http_method, url, parameters, credentials(@token.value, 'X'))
-            end
-            should_respond_with failure_code
-            should_respond_with_content_type_based_on_url(url)
-            should "not login as the user" do
-              assert_equal User.anonymous, User.current
-            end
-          end
-        end
-      end
-    
-      # Test that a request allows full key authentication
-      #
-      # @param [Symbol] http_method the HTTP method for request (:get, :post, :put, :delete)
-      # @param [String] url the request url, without the key=ZXY parameter
-      # @param [optional, Hash] parameters additional request parameters
-      # @param [optional, Hash] options additional options
-      # @option options [Symbol] :success_code Successful response code (:success)
-      # @option options [Symbol] :failure_code Failure response code (:unauthorized)
-      def self.should_allow_key_based_auth(http_method, url, parameters={}, options={})
-        success_code = options[:success_code] || :success
-        failure_code = options[:failure_code] || :unauthorized
-    
-        context "should allow key based auth using key=X for #{http_method} #{url}" do
-          context "with a valid api token" do
-            setup do
-              @user = User.generate! do |user|
-                user.admin = true
-              end
-              @token = Token.create!(:user => @user, :action => 'api')
-              # Simple url parse to add on ?key= or &key=
-              request_url = if url.match(/\?/)
-                              url + "&key=#{@token.value}"
-                            else
-                              url + "?key=#{@token.value}"
-                            end
-              send(http_method, request_url, parameters)
-            end
-            should_respond_with success_code
-            should_respond_with_content_type_based_on_url(url)
-            should_be_a_valid_response_string_based_on_url(url)
-            should "login as the user" do
-              assert_equal @user, User.current
-            end
-          end
-    
-          context "with an invalid api token" do
-            setup do
-              @user = User.generate! do |user|
-                user.admin = true
-              end
-              @token = Token.create!(:user => @user, :action => 'feeds')
-              # Simple url parse to add on ?key= or &key=
-              request_url = if url.match(/\?/)
-                              url + "&key=#{@token.value}"
-                            else
-                              url + "?key=#{@token.value}"
-                            end
-              send(http_method, request_url, parameters)
-            end
-            should_respond_with failure_code
-            should_respond_with_content_type_based_on_url(url)
-            should "not login as the user" do
-              assert_equal User.anonymous, User.current
-            end
-          end
-        end
-    
-        context "should allow key based auth using X-Redmine-API-Key header for #{http_method} #{url}" do
-          setup do
-            @user = User.generate! do |user|
-              user.admin = true
-            end
-            @token = Token.create!(:user => @user, :action => 'api')
-            send(http_method, url, parameters, {'X-Redmine-API-Key' => @token.value.to_s})
-          end
-          should_respond_with success_code
-          should_respond_with_content_type_based_on_url(url)
-          should_be_a_valid_response_string_based_on_url(url)
-          should "login as the user" do
-            assert_equal @user, User.current
-          end
-        end
-      end
-    
-      # Uses should_respond_with_content_type based on what's in the url:
-      #
-      # '/project/issues.xml' => should_respond_with_content_type :xml
-      # '/project/issues.json' => should_respond_with_content_type :json
-      #
-      # @param [String] url Request
-      def self.should_respond_with_content_type_based_on_url(url)
-        case
-        when url.match(/xml/i)
-          should "respond with XML" do
-            assert_equal 'application/xml', @response.content_type
-          end
-        when url.match(/json/i)
-          should "respond with JSON" do
-            assert_equal 'application/json', @response.content_type
-          end
-        else
-          raise "Unknown content type for should_respond_with_content_type_based_on_url: #{url}"
-        end
-      end
-    
-      # Uses the url to assert which format the response should be in
-      #
-      # '/project/issues.xml' => should_be_a_valid_xml_string
-      # '/project/issues.json' => should_be_a_valid_json_string
-      #
-      # @param [String] url Request
-      def self.should_be_a_valid_response_string_based_on_url(url)
-        case
-        when url.match(/xml/i)
-          should_be_a_valid_xml_string
-        when url.match(/json/i)
-          should_be_a_valid_json_string
-        else
-          raise "Unknown content type for should_be_a_valid_response_based_on_url: #{url}"
-        end
-      end
-    
-      # Checks that the response is a valid JSON string
-      def self.should_be_a_valid_json_string
-        should "be a valid JSON string (or empty)" do
-          assert(response.body.blank? || ActiveSupport::JSON.decode(response.body))
-        end
-      end
-    
-      # Checks that the response is a valid XML string
-      def self.should_be_a_valid_xml_string
-        should "be a valid XML string" do
-          assert REXML::Document.new(response.body)
-        end
-      end
-    
-      def self.should_respond_with(status)
-        should "respond with #{status}" do
-          assert_response status
-        end
-      end
-    end
-  end
-end
-
-# URL helpers do not work with config.threadsafe!
-# https://github.com/rspec/rspec-rails/issues/476#issuecomment-4705454
-ActionView::TestCase::TestController.instance_eval do
-  helper Rails.application.routes.url_helpers
-end
-ActionView::TestCase::TestController.class_eval do
-  def _routes
-    Rails.application.routes
-  end
-end
+require 'rubygems'
+# require 'spork'
+#uncomment the following line to use spork with the debugger
+#require 'spork/ext/ruby-debug'
+
+# Spork.prefork do
+#   # Loading more in this block will cause your tests to run faster. However,
+#   # if you change any configuration or code from libraries loaded here, you'll
+#   # need to restart spork for it take effect.
+# 	ENV["RAILS_ENV"] = "test"
+# 	require File.expand_path('../../config/environment', __FILE__)
+# 	require 'rails/test_help'
+#
+# end
+#
+# Spork.each_run do
+#   # This code will be run each time you run your specs.
+#
+# end
+
+# --- Instructions ---
+# Sort the contents of this file into a Spork.prefork and a Spork.each_run
+# block.
+#
+# The Spork.prefork block is run only once when the spork server is started.
+# You typically want to place most of your (slow) initializer code in here, in
+# particular, require'ing any 3rd-party gems that you don't normally modify
+# during development.
+#
+# The Spork.each_run block is run each time you run your specs.  In case you
+# need to load files that tend to change during development, require them here.
+# With Rails, your application modules are loaded automatically, so sometimes
+# this block can remain empty.
+#
+# Note: You can modify files loaded *from* the Spork.each_run block without
+# restarting the spork server.  However, this file itself will not be reloaded,
+# so if you change any of the code inside the each_run block, you still need to
+# restart the server.  In general, if you have non-trivial code in this file,
+# it's advisable to move it into a separate file so you can easily edit it
+# without restarting spork.  (For example, with RSpec, you could move
+# non-trivial code into a file spec/support/my_helper.rb, making sure that the
+# spec/support/* files are require'd from inside the each_run block.)
+#
+# Any code that is left outside the two blocks will be run during preforking
+# *and* during each_run -- that's probably not what you want.
+#
+# These instructions should self-destruct in 10 seconds.  If they don't, feel
+# free to delete them.
+
+
+
+
+# Redmine - project management software
+# Copyright (C) 2006-2013  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+#require 'shoulda'
+ENV["RAILS_ENV"] = "test"
+require File.expand_path(File.dirname(__FILE__) + "/../config/environment")
+require 'rails/test_help'
+require Rails.root.join('test', 'mocks', 'open_id_authentication_mock.rb').to_s
+
+require File.expand_path(File.dirname(__FILE__) + '/object_helpers')
+include ObjectHelpers
+
+class ActiveSupport::TestCase
+  include ActionDispatch::TestProcess
+
+  self.use_transactional_fixtures = true
+  self.use_instantiated_fixtures  = false
+
+  def log_user(login, password)
+    User.anonymous
+    get "/login"
+    assert_equal nil, session[:user_id]
+    puts response.response_code()
+    assert_response :success
+    assert_template "account/login"
+    post "/login", :username => login, :password => password
+    assert_equal login, User.find(session[:user_id]).login
+  end
+
+  def uploaded_test_file(name, mime)
+    fixture_file_upload("files/#{name}", mime, true)
+  end
+
+  def credentials(user, password=nil)
+    {'HTTP_AUTHORIZATION' => ActionController::HttpAuthentication::Basic.encode_credentials(user, password || user)}
+  end
+
+  # Mock out a file
+  def self.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
+
+  def mock_file
+    self.class.mock_file
+  end
+
+  def mock_file_with_options(options={})
+    file = ''
+    file.stubs(:size).returns(32)
+    original_filename = options[:original_filename] || nil
+    file.stubs(:original_filename).returns(original_filename)
+    content_type = options[:content_type] || nil
+    file.stubs(:content_type).returns(content_type)
+    file.stubs(:read).returns(false)
+    file
+  end
+
+  # Use a temporary directory for attachment related tests
+  def set_tmp_attachments_directory
+    Dir.mkdir "#{Rails.root}/tmp/test" unless File.directory?("#{Rails.root}/tmp/test")
+    unless File.directory?("#{Rails.root}/tmp/test/attachments")
+      Dir.mkdir "#{Rails.root}/tmp/test/attachments"
+    end
+    Attachment.storage_path = "#{Rails.root}/tmp/test/attachments"
+  end
+
+  def set_fixtures_attachments_directory
+    Attachment.storage_path = "#{Rails.root}/test/fixtures/files"
+  end
+
+  def with_settings(options, &block)
+    saved_settings = options.keys.inject({}) do |h, k|
+      h[k] = case Setting[k]
+        when Symbol, false, true, nil
+          Setting[k]
+        else
+          Setting[k].dup
+        end
+      h
+    end
+    options.each {|k, v| Setting[k] = v}
+    yield
+  ensure
+    saved_settings.each {|k, v| Setting[k] = v} if saved_settings
+  end
+
+  # Yields the block with user as the current user
+  def with_current_user(user, &block)
+    saved_user = User.current
+    User.current = user
+    yield
+  ensure
+    User.current = saved_user
+  end
+
+  def change_user_password(login, new_password)
+    user = User.first(:conditions => {:login => login})
+    user.password, user.password_confirmation = new_password, new_password
+    user.save!
+  end
+
+  def self.ldap_configured?
+    @test_ldap = Net::LDAP.new(:host => '127.0.0.1', :port => 389)
+    return @test_ldap.bind
+  rescue Exception => e
+    # LDAP is not listening
+    return nil
+  end
+
+  def self.convert_installed?
+    Redmine::Thumbnail.convert_available?
+  end
+
+  # Returns the path to the test +vendor+ repository
+  def self.repository_path(vendor)
+    Rails.root.join("tmp/test/#{vendor.downcase}_repository").to_s
+  end
+
+  # Returns the url of the subversion test repository
+  def self.subversion_repository_url
+    path = repository_path('subversion')
+    path = '/' + path unless path.starts_with?('/')
+    "file://#{path}"
+  end
+
+  # Returns true if the +vendor+ test repository is configured
+  def self.repository_configured?(vendor)
+    File.directory?(repository_path(vendor))
+  end
+
+  def repository_path_hash(arr)
+    hs = {}
+    hs[:path]  = arr.join("/")
+    hs[:param] = arr.join("/")
+    hs
+  end
+
+  def assert_save(object)
+    saved = object.save
+    message = "#{object.class} could not be saved"
+    errors = object.errors.full_messages.map {|m| "- #{m}"}
+    message << ":\n#{errors.join("\n")}" if errors.any?
+    assert_equal true, saved, message
+  end
+
+  def assert_error_tag(options={})
+    assert_tag({:attributes => { :id => 'errorExplanation' }}.merge(options))
+  end
+
+  def assert_include(expected, s, message=nil)
+    assert s.include?(expected), (message || "\"#{expected}\" not found in \"#{s}\"")
+  end
+
+  def assert_not_include(expected, s)
+    assert !s.include?(expected), "\"#{expected}\" found in \"#{s}\""
+  end
+
+  def assert_select_in(text, *args, &block)
+    d = HTML::Document.new(CGI::unescapeHTML(String.new(text))).root
+    assert_select(d, *args, &block)
+  end
+
+  def assert_mail_body_match(expected, mail)
+    if expected.is_a?(String)
+      assert_include expected, mail_body(mail)
+    else
+      assert_match expected, mail_body(mail)
+    end
+  end
+
+  def assert_mail_body_no_match(expected, mail)
+    if expected.is_a?(String)
+      assert_not_include expected, mail_body(mail)
+    else
+      assert_no_match expected, mail_body(mail)
+    end
+  end
+
+  def mail_body(mail)
+    mail.parts.first.body.encoded
+  end
+end
+
+module Redmine
+  module ApiTest
+    # Base class for API tests
+    class Base < ActionDispatch::IntegrationTest
+      # Test that a request allows the three types of API authentication
+      #
+      # * HTTP Basic with username and password
+      # * HTTP Basic with an api key for the username
+      # * Key based with the key=X parameter
+      #
+      # @param [Symbol] http_method the HTTP method for request (:get, :post, :put, :delete)
+      # @param [String] url the request url
+      # @param [optional, Hash] parameters additional request parameters
+      # @param [optional, Hash] options additional options
+      # @option options [Symbol] :success_code Successful response code (:success)
+      # @option options [Symbol] :failure_code Failure response code (:unauthorized)
+      def self.should_allow_api_authentication(http_method, url, parameters={}, options={})
+        should_allow_http_basic_auth_with_username_and_password(http_method, url, parameters, options)
+        should_allow_http_basic_auth_with_key(http_method, url, parameters, options)
+        should_allow_key_based_auth(http_method, url, parameters, options)
+      end
+    
+      # Test that a request allows the username and password for HTTP BASIC
+      #
+      # @param [Symbol] http_method the HTTP method for request (:get, :post, :put, :delete)
+      # @param [String] url the request url
+      # @param [optional, Hash] parameters additional request parameters
+      # @param [optional, Hash] options additional options
+      # @option options [Symbol] :success_code Successful response code (:success)
+      # @option options [Symbol] :failure_code Failure response code (:unauthorized)
+      def self.should_allow_http_basic_auth_with_username_and_password(http_method, url, parameters={}, options={})
+        success_code = options[:success_code] || :success
+        failure_code = options[:failure_code] || :unauthorized
+    
+        context "should allow http basic auth using a username and password for #{http_method} #{url}" do
+          context "with a valid HTTP authentication" do
+            setup do
+              @user = User.generate! do |user|
+                user.admin = true
+                user.password = 'my_password'
+              end
+              send(http_method, url, parameters, credentials(@user.login, 'my_password'))
+            end
+    
+            should_respond_with success_code
+            should_respond_with_content_type_based_on_url(url)
+            should "login as the user" do
+              assert_equal @user, User.current
+            end
+          end
+    
+          context "with an invalid HTTP authentication" do
+            setup do
+              @user = User.generate!
+              send(http_method, url, parameters, credentials(@user.login, 'wrong_password'))
+            end
+    
+            should_respond_with failure_code
+            should_respond_with_content_type_based_on_url(url)
+            should "not login as the user" do
+              assert_equal User.anonymous, User.current
+            end
+          end
+    
+          context "without credentials" do
+            setup do
+              send(http_method, url, parameters)
+            end
+    
+            should_respond_with failure_code
+            should_respond_with_content_type_based_on_url(url)
+            should "include_www_authenticate_header" do
+              assert @controller.response.headers.has_key?('WWW-Authenticate')
+            end
+          end
+        end
+      end
+    
+      # Test that a request allows the API key with HTTP BASIC
+      #
+      # @param [Symbol] http_method the HTTP method for request (:get, :post, :put, :delete)
+      # @param [String] url the request url
+      # @param [optional, Hash] parameters additional request parameters
+      # @param [optional, Hash] options additional options
+      # @option options [Symbol] :success_code Successful response code (:success)
+      # @option options [Symbol] :failure_code Failure response code (:unauthorized)
+      def self.should_allow_http_basic_auth_with_key(http_method, url, parameters={}, options={})
+        success_code = options[:success_code] || :success
+        failure_code = options[:failure_code] || :unauthorized
+    
+        context "should allow http basic auth with a key for #{http_method} #{url}" do
+          context "with a valid HTTP authentication using the API token" do
+            setup do
+              @user = User.generate! do |user|
+                user.admin = true
+              end
+              @token = Token.create!(:user => @user, :action => 'api')
+              send(http_method, url, parameters, credentials(@token.value, 'X'))
+            end
+            should_respond_with success_code
+            should_respond_with_content_type_based_on_url(url)
+            should_be_a_valid_response_string_based_on_url(url)
+            should "login as the user" do
+              assert_equal @user, User.current
+            end
+          end
+    
+          context "with an invalid HTTP authentication" do
+            setup do
+              @user = User.generate!
+              @token = Token.create!(:user => @user, :action => 'feeds')
+              send(http_method, url, parameters, credentials(@token.value, 'X'))
+            end
+            should_respond_with failure_code
+            should_respond_with_content_type_based_on_url(url)
+            should "not login as the user" do
+              assert_equal User.anonymous, User.current
+            end
+          end
+        end
+      end
+    
+      # Test that a request allows full key authentication
+      #
+      # @param [Symbol] http_method the HTTP method for request (:get, :post, :put, :delete)
+      # @param [String] url the request url, without the key=ZXY parameter
+      # @param [optional, Hash] parameters additional request parameters
+      # @param [optional, Hash] options additional options
+      # @option options [Symbol] :success_code Successful response code (:success)
+      # @option options [Symbol] :failure_code Failure response code (:unauthorized)
+      def self.should_allow_key_based_auth(http_method, url, parameters={}, options={})
+        success_code = options[:success_code] || :success
+        failure_code = options[:failure_code] || :unauthorized
+    
+        context "should allow key based auth using key=X for #{http_method} #{url}" do
+          context "with a valid api token" do
+            setup do
+              @user = User.generate! do |user|
+                user.admin = true
+              end
+              @token = Token.create!(:user => @user, :action => 'api')
+              # Simple url parse to add on ?key= or &key=
+              request_url = if url.match(/\?/)
+                              url + "&key=#{@token.value}"
+                            else
+                              url + "?key=#{@token.value}"
+                            end
+              send(http_method, request_url, parameters)
+            end
+            should_respond_with success_code
+            should_respond_with_content_type_based_on_url(url)
+            should_be_a_valid_response_string_based_on_url(url)
+            should "login as the user" do
+              assert_equal @user, User.current
+            end
+          end
+    
+          context "with an invalid api token" do
+            setup do
+              @user = User.generate! do |user|
+                user.admin = true
+              end
+              @token = Token.create!(:user => @user, :action => 'feeds')
+              # Simple url parse to add on ?key= or &key=
+              request_url = if url.match(/\?/)
+                              url + "&key=#{@token.value}"
+                            else
+                              url + "?key=#{@token.value}"
+                            end
+              send(http_method, request_url, parameters)
+            end
+            should_respond_with failure_code
+            should_respond_with_content_type_based_on_url(url)
+            should "not login as the user" do
+              assert_equal User.anonymous, User.current
+            end
+          end
+        end
+    
+        context "should allow key based auth using X-Redmine-API-Key header for #{http_method} #{url}" do
+          setup do
+            @user = User.generate! do |user|
+              user.admin = true
+            end
+            @token = Token.create!(:user => @user, :action => 'api')
+            send(http_method, url, parameters, {'X-Redmine-API-Key' => @token.value.to_s})
+          end
+          should_respond_with success_code
+          should_respond_with_content_type_based_on_url(url)
+          should_be_a_valid_response_string_based_on_url(url)
+          should "login as the user" do
+            assert_equal @user, User.current
+          end
+        end
+      end
+    
+      # Uses should_respond_with_content_type based on what's in the url:
+      #
+      # '/project/issues.xml' => should_respond_with_content_type :xml
+      # '/project/issues.json' => should_respond_with_content_type :json
+      #
+      # @param [String] url Request
+      def self.should_respond_with_content_type_based_on_url(url)
+        case
+        when url.match(/xml/i)
+          should "respond with XML" do
+            assert_equal 'application/xml', @response.content_type
+          end
+        when url.match(/json/i)
+          should "respond with JSON" do
+            assert_equal 'application/json', @response.content_type
+          end
+        else
+          raise "Unknown content type for should_respond_with_content_type_based_on_url: #{url}"
+        end
+      end
+    
+      # Uses the url to assert which format the response should be in
+      #
+      # '/project/issues.xml' => should_be_a_valid_xml_string
+      # '/project/issues.json' => should_be_a_valid_json_string
+      #
+      # @param [String] url Request
+      def self.should_be_a_valid_response_string_based_on_url(url)
+        case
+        when url.match(/xml/i)
+          should_be_a_valid_xml_string
+        when url.match(/json/i)
+          should_be_a_valid_json_string
+        else
+          raise "Unknown content type for should_be_a_valid_response_based_on_url: #{url}"
+        end
+      end
+    
+      # Checks that the response is a valid JSON string
+      def self.should_be_a_valid_json_string
+        should "be a valid JSON string (or empty)" do
+          assert(response.body.blank? || ActiveSupport::JSON.decode(response.body))
+        end
+      end
+    
+      # Checks that the response is a valid XML string
+      def self.should_be_a_valid_xml_string
+        should "be a valid XML string" do
+          assert REXML::Document.new(response.body)
+        end
+      end
+    
+      def self.should_respond_with(status)
+        should "respond with #{status}" do
+          assert_response status
+        end
+      end
+    end
+  end
+end
+
+# URL helpers do not work with config.threadsafe!
+# https://github.com/rspec/rspec-rails/issues/476#issuecomment-4705454
+ActionView::TestCase::TestController.instance_eval do
+  helper Rails.application.routes.url_helpers
+end
+ActionView::TestCase::TestController.class_eval do
+  def _routes
+    Rails.application.routes
+  end
+end