1 files changed, 15 insertions, 0 deletions
diff --git a/test/test_helper.rb b/test/test_helper.rb
index aeea0e216..07464b2ff 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -163,6 +163,21 @@ class ActiveSupport::TestCase
     File.directory?(repository_path(vendor))
   end
 
+  def self.is_mysql_utf8mb4
+    return false unless Redmine::Database::mysql?
+    character_sets = %w[
+      character_set_connection
+      character_set_database
+      character_set_results
+      character_set_server
+    ]
+    ActiveRecord::Base.connection.
+        select_rows('show variables like "character%"').each do |r|
+      return false if character_sets.include?(r[0]) && r[1] != "utf8mb4"
+    end
+    return true
+  end
+
   def repository_path_hash(arr)
     hs = {}
     hs[:path]  = arr.join("/")