1 files changed, 15 insertions, 10 deletions
diff --git a/spec/ruby/core/kernel/fixtures/classes.rb b/spec/ruby/core/kernel/fixtures/classes.rb
index 1f45bbb083..2909a621a9 100644
--- a/spec/ruby/core/kernel/fixtures/classes.rb
+++ b/spec/ruby/core/kernel/fixtures/classes.rb
@@ -328,7 +328,7 @@ module KernelSpecs
     def inner
       b = mp { return :good }
 
-      pr = lambda { |x| x.call }
+      pr = -> x { x.call }
 
       pr.call(b)
 
@@ -424,6 +424,20 @@ module KernelSpecs
     def f2_call_lineno; method(:f3).source_location[1] + 1; end
     def f3_call_lineno; method(:f4).source_location[1] + 1; end
   end
+
+  CustomRangeInteger = Struct.new(:value) do
+    def to_int; value; end
+    def <=>(other); to_int <=> other.to_int; end
+    def -(other); self.class.new(to_int - other.to_int); end
+    def +(other); self.class.new(to_int + other.to_int); end
+  end
+
+  CustomRangeFloat = Struct.new(:value) do
+    def to_f; value; end
+    def <=>(other); to_f <=> other.to_f; end
+    def -(other); to_f - other.to_f; end
+    def +(other); self.class.new(to_f + other.to_f); end
+  end
 end
 
 class EvalSpecs
@@ -454,12 +468,3 @@ class EvalSpecs
     return f
   end
 end
-
-# for Kernel#sleep to have Channel in it's specs
-# TODO: switch directly to queue for both Kernel#sleep and Thread specs?
-unless defined? Channel
-  require 'thread'
-  class Channel < Queue
-    alias receive shift
-  end
-end