diff --git a/.rubocop.yml b/.rubocop.yml
index c6c409b1..73bc4a5a 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -40,3 +40,6 @@ Style/AutoResourceCleanup:
 
 Style/Documentation:
   Enabled: false
+
+Style/ExpandPathArguments:
+  Enabled: false
diff --git a/docs/index.rst b/docs/index.rst
index 35cdf0b8..82d7c42b 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -27,9 +27,12 @@ This plugin is the successor of `Redmine Tweaks <https://github.com/alphanodes/r
    :target: https://additionals.readthedocs.io/en/latest/?badge=latest
    :alt: Documentation Status
 
-.. image:: https://img.shields.io/codeclimate/github/AlphaNodes/additionals.svg?style=flat
-   :target: https://codeclimate.com/github/AlphaNodes/additionals
-   :alt: Code Climate
+.. image:: https://api.codeclimate.com/v1/badges/d92c0bda57f80e7c76b7/maintainability
+   :target: https://codeclimate.com/github/AlphaNodes/additionals/maintainability
+   :alt: Maintainability
+
+.. image:: https://travis-ci.org/AlphaNodes/additionals.svg?branch=master
+   :target: https://travis-ci.org/AlphaNodes/additionals
 
 .. image:: https://img.shields.io/badge/rate%20at-redmine.org-blue.svg?style=flat
    :target: https://www.redmine.org/plugins/additionals
diff --git a/test/functional/account_controller_test.rb b/test/functional/account_controller_test.rb
index 6ee1e39e..e32287b8 100644
--- a/test/functional/account_controller_test.rb
+++ b/test/functional/account_controller_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class AccountControllerTest < Redmine::ControllerTest
   fixtures :users, :email_addresses, :roles
diff --git a/test/functional/additionals_assign_to_me_controller_test.rb b/test/functional/additionals_assign_to_me_controller_test.rb
index d4f74b2d..b1d427e4 100644
--- a/test/functional/additionals_assign_to_me_controller_test.rb
+++ b/test/functional/additionals_assign_to_me_controller_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class AdditionalsAssignToMeControllerTest < Redmine::ControllerTest
   fixtures :projects,
diff --git a/test/functional/additionals_change_status_controller_test.rb b/test/functional/additionals_change_status_controller_test.rb
index 8396b85d..5ede2cf3 100644
--- a/test/functional/additionals_change_status_controller_test.rb
+++ b/test/functional/additionals_change_status_controller_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class AdditionalsChangeStatusControllerTest < Redmine::ControllerTest
   fixtures :projects,
diff --git a/test/functional/issues_controller_test.rb b/test/functional/issues_controller_test.rb
index f5b5c604..fc07faac 100644
--- a/test/functional/issues_controller_test.rb
+++ b/test/functional/issues_controller_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class IssuesControllerTest < Redmine::ControllerTest
   fixtures :projects,
diff --git a/test/functional/projects_controller_test.rb b/test/functional/projects_controller_test.rb
index 8ad62a60..923287a2 100644
--- a/test/functional/projects_controller_test.rb
+++ b/test/functional/projects_controller_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class ProjectsControllerTest < Redmine::ControllerTest
   fixtures :projects,
diff --git a/test/functional/users_controller_test.rb b/test/functional/users_controller_test.rb
index 2c791baf..4123a2ba 100644
--- a/test/functional/users_controller_test.rb
+++ b/test/functional/users_controller_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class UsersControllerTest < Redmine::ControllerTest
   fixtures :projects,
diff --git a/test/functional/welcome_controller_test.rb b/test/functional/welcome_controller_test.rb
index 5820437e..ae187515 100644
--- a/test/functional/welcome_controller_test.rb
+++ b/test/functional/welcome_controller_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class WelcomeControllerTest < Redmine::ControllerTest
   fixtures :projects, :news, :users, :members
diff --git a/test/functional/wiki_controller_test.rb b/test/functional/wiki_controller_test.rb
index 968c3e84..b0ad2764 100644
--- a/test/functional/wiki_controller_test.rb
+++ b/test/functional/wiki_controller_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class WikiControllerTest < Redmine::ControllerTest
   fixtures :projects,
diff --git a/test/integration/common_views_test.rb b/test/integration/common_views_test.rb
index 1e0cb523..32d9d1a7 100644
--- a/test/integration/common_views_test.rb
+++ b/test/integration/common_views_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 # Additionals integration tests
 class CommonViewsTest < Redmine::IntegrationTest
diff --git a/test/integration/library_test.rb b/test/integration/library_test.rb
index 4c9e7d9e..1b2ac90a 100644
--- a/test/integration/library_test.rb
+++ b/test/integration/library_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class JavascriptLibraryTest < Redmine::IntegrationTest
   def test_loaded_css_libraries
diff --git a/test/integration/routing_test.rb b/test/integration/routing_test.rb
index 9869c4cb..a804efe1 100644
--- a/test/integration/routing_test.rb
+++ b/test/integration/routing_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class RoutingTest < Redmine::RoutingTest
   def test_issue_assign_to_me
diff --git a/test/unit/additionals_fontawesome_test.rb b/test/unit/additionals_fontawesome_test.rb
index 4c6bf8dc..f4b6e720 100644
--- a/test/unit/additionals_fontawesome_test.rb
+++ b/test/unit/additionals_fontawesome_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class AdditionalsFontAwesomeTest < Redmine::HelperTest
   fixtures :projects, :users, :members, :member_roles, :roles,
diff --git a/test/unit/i18n_test.rb b/test/unit/i18n_test.rb
index df2b990f..7a3992e3 100644
--- a/test/unit/i18n_test.rb
+++ b/test/unit/i18n_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 module Redmine
   class I18nTest < Redmine::HelperTest
diff --git a/test/unit/issue_test.rb b/test/unit/issue_test.rb
index 6f762783..528581a3 100644
--- a/test/unit/issue_test.rb
+++ b/test/unit/issue_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class IssueTest < Redmine::HelperTest
   fixtures :projects, :users, :members, :member_roles, :roles,
diff --git a/test/unit/time_entry_test.rb b/test/unit/time_entry_test.rb
index dcd99c34..0a518edd 100644
--- a/test/unit/time_entry_test.rb
+++ b/test/unit/time_entry_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class TimeEntryTest < Redmine::HelperTest
   fixtures :issues, :projects, :users, :time_entries,
diff --git a/test/unit/watcher_test.rb b/test/unit/watcher_test.rb
index 58e7d50c..83ba03a1 100644
--- a/test/unit/watcher_test.rb
+++ b/test/unit/watcher_test.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../test_helper', __dir__)
+require File.expand_path('../../test_helper', __FILE__)
 
 class WatcherTest < Redmine::HelperTest
   fixtures :projects, :users, :email_addresses, :members, :member_roles, :roles, :enabled_modules,