Helper tests has been added

.gitignore

@@ -1,5 +1,6 @@
 .DS_Store
 .buildpath
+coverage/
 .project
 .settings/
 docs/_build

test/unit/helpers/global_helper_test.rb

@@ -0,0 +1,55 @@
+require File.expand_path('../../../test_helper', __FILE__)
+
+class GlobalHelperTest < ActionView::TestCase
+  include ApplicationHelper
+  include Additionals::Helpers
+  include CustomFieldsHelper
+  include Redmine::I18n
+  include ERB::Util
+
+  fixtures :projects, :trackers, :issue_statuses, :issues,
+           :enumerations, :users, :issue_categories,
+           :projects_trackers,
+           :roles,
+           :member_roles,
+           :members,
+           :enabled_modules,
+           :custom_fields,
+           :attachments,
+           :versions
+
+  def setup
+    super
+    set_language_if_valid('en')
+    User.current = nil
+  end
+
+  def test_system_info
+    text = system_info
+
+    assert_not_equal '', text
+    assert_not_equal 'unknown', text
+  end
+
+  def test_windows_platform
+    assert_nil windows_platform?
+  end
+
+  def test_user_with_avatar
+    html = user_with_avatar(User.find(1))
+
+    assert_include '<img', html
+    assert_include 'Redmine Admin', html
+  end
+
+  def test_fa_icon
+    html = fa_icon('fa-car', class: 'test')
+    assert_include 'class="fa fa-car test"', html
+
+    html = fa_icon('fa-car', pre_text: 'Testing')
+    assert_include 'Testing <span', html
+
+    html = fa_icon('fa-car', post_text: 'Testing')
+    assert_include '</span> Testing', html
+  end
+end