1 files changed, 31 insertions, 0 deletions
diff --git a/spec/support/helpers/sorting_helper.rb b/spec/support/helpers/sorting_helper.rb
index 3801d25fb63..f19f8c12928 100644
--- a/spec/support/helpers/sorting_helper.rb
+++ b/spec/support/helpers/sorting_helper.rb
@@ -17,4 +17,35 @@ module SortingHelper
       click_link value
     end
   end
+
+  def nils_last(value)
+    NilsLast.new(value)
+  end
+
+  class NilsLast
+    include Comparable
+
+    attr_reader :value
+    delegate :==, :eql?, :hash, to: :value
+
+    def initialize(value)
+      @value = value
+      @reverse = false
+    end
+
+    def <=>(other)
+      return unless other.is_a?(self.class)
+      return 0 if value.nil? && other.value.nil?
+      return 1 if value.nil?
+      return -1 if other.value.nil?
+
+      int = value <=> other.value
+      @reverse ? -int : int
+    end
+
+    def -@
+      @reverse = true
+      self
+    end
+  end
 end