1 files changed, 25 insertions, 0 deletions
diff --git a/spec/ruby/core/range/fixtures/classes.rb b/spec/ruby/core/range/fixtures/classes.rb
index de46d7d4a9..3a1df010b2 100644
--- a/spec/ruby/core/range/fixtures/classes.rb
+++ b/spec/ruby/core/range/fixtures/classes.rb
@@ -40,6 +40,28 @@ module RangeSpecs
     end
   end
 
+  class WithoutSucc
+    include Comparable
+    attr_reader :n
+
+    def initialize(n)
+      @n = n
+    end
+
+    def eql?(other)
+      inspect.eql? other.inspect
+    end
+    alias :== :eql?
+
+    def inspect
+      "WithoutSucc(#{@n})"
+    end
+
+    def <=>(other)
+      @n <=> other.n
+    end
+  end
+
   class Xs < Custom # represent a string of 'x's
     def succ
       Xs.new(@length + 1)
@@ -62,4 +84,7 @@ module RangeSpecs
 
   class MyRange < Range
   end
+
+  class ComparisonError < RuntimeError
+  end
 end