diff --git a/test/helpers/application_helper_test.rb b/test/helpers/application_helper_test.rb
index 059aaca7d..87b57c7f2 100644
--- a/test/helpers/application_helper_test.rb
+++ b/test/helpers/application_helper_test.rb
@@ -22,7 +22,6 @@ require_relative '../test_helper'
 class ApplicationHelperTest < Redmine::HelperTest
   include ERB::Util
   include AvatarsHelper
-  include IconsHelper
 
   def setup
     super
@@ -2430,13 +2429,4 @@ class ApplicationHelperTest < Redmine::HelperTest
       assert_equal({}, list_autofill_data_attributes)
     end
   end
-
-  def pre_wrapper(text)
-    icon = sprite_icon('copy-pre-content', size: 18)
-    button_copy = l(:button_copy)
-    '<div class="pre-wrapper" data-controller="clipboard"><a class="copy-pre-content-link icon-only" title="' + button_copy + '" data-action="clipboard#copyPre">' +
-    icon + '</a>' +
-    text +
-    '</div>'
-  end
 end
diff --git a/test/test_helper.rb b/test/test_helper.rb
index a59f70c85..2c026ad11 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -342,12 +342,21 @@ module Redmine
   class HelperTest < ActionView::TestCase
     include Redmine::I18n
     include Propshaft::Helper
+    include IconsHelper
 
     def setup
       super
       User.current = nil
       ::I18n.locale = 'en'
     end
+
+    def pre_wrapper(text)
+      icon = sprite_icon('copy-pre-content', size: 18)
+      '<div class="pre-wrapper" data-controller="clipboard"><a class="copy-pre-content-link icon-only" title="Copy" data-action="clipboard#copyPre">' +
+      icon + '</a>' +
+      text +
+      '</div>'
+    end
   end
 
   class ControllerTest < ActionController::TestCase
diff --git a/test/unit/lib/redmine/wiki_formatting/macros_test.rb b/test/unit/lib/redmine/wiki_formatting/macros_test.rb
index 57c6417ef..8c3011575 100644
--- a/test/unit/lib/redmine/wiki_formatting/macros_test.rb
+++ b/test/unit/lib/redmine/wiki_formatting/macros_test.rb
@@ -23,7 +23,6 @@ class Redmine::WikiFormatting::MacrosTest < Redmine::HelperTest
   include ActionView::Helpers::TextHelper
   include ActionView::Helpers::SanitizeHelper
   include ERB::Util
-  include IconsHelper
   extend ActionView::Helpers::SanitizeHelper::ClassMethods
 
   def setup
@@ -627,15 +626,6 @@ class Redmine::WikiFormatting::MacrosTest < Redmine::HelperTest
     end
   end
 
-  def pre_wrapper(text)
-    icon = sprite_icon('copy-pre-content', size: 18)
-    button_copy = l(:button_copy)
-    '<div class="pre-wrapper" data-controller="clipboard"><a class="copy-pre-content-link icon-only" title="' + button_copy + '" data-action="clipboard#copyPre">' +
-    icon + '</a>' +
-    text +
-    '</div>'
-  end
-
   def test_recent_pages_macro_with_project_option_should_not_disclose_private_project
     project = Project.find(5) # Private project
 
diff --git a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
index d0e26dcb4..5678067dd 100644
--- a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
+++ b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
@@ -21,8 +21,6 @@
 require_relative '../../../../test_helper'
 
 class Redmine::WikiFormatting::TextileFormatterTest < Redmine::HelperTest
-  include IconsHelper
-
   def setup
     super
     @formatter = Redmine::WikiFormatting::Textile::Formatter
@@ -825,13 +823,4 @@ class Redmine::WikiFormatting::TextileFormatterTest < Redmine::HelperTest
     assert_equal expected, result.first, "section content did not match"
     assert_equal ActiveSupport::Digest.hexdigest(expected), result.last, "section hash did not match"
   end
-
-  def pre_wrapper(text)
-    icon = sprite_icon('copy-pre-content', size: 18)
-    button_copy = l(:button_copy)
-    '<div class="pre-wrapper" data-controller="clipboard"><a class="copy-pre-content-link icon-only" title="' + button_copy + '" data-action="clipboard#copyPre">' +
-    icon + '</a>' +
-    text +
-    '</div>'
-  end
 end