1 files changed, 8 insertions, 6 deletions
diff --git a/spec/ruby/core/integer/uminus_spec.rb b/spec/ruby/core/integer/uminus_spec.rb
index 56c5f7a085..7a9cfe89bf 100644
--- a/spec/ruby/core/integer/uminus_spec.rb
+++ b/spec/ruby/core/integer/uminus_spec.rb
@@ -11,18 +11,20 @@ describe "Integer#-@" do
     end
 
     it "negates self at Fixnum/Bignum boundaries" do
-      fixnum_max.send(:-@).should == (0 - fixnum_max)
-      fixnum_min.send(:-@).should == (0 - fixnum_min)
+      (-fixnum_max).should == (0 - fixnum_max)
+      (-fixnum_max).should < 0
+      (-fixnum_min).should == (0 - fixnum_min)
+      (-fixnum_min).should > 0
     end
   end
 
   context "bignum" do
     it "returns self as a negative value" do
-      bignum_value.send(:-@).should == -9223372036854775808
-      (-bignum_value).send(:-@).should == 9223372036854775808
+      bignum_value.send(:-@).should == -18446744073709551616
+      (-bignum_value).send(:-@).should == 18446744073709551616
 
-      bignum_value(921).send(:-@).should == -9223372036854776729
-      (-bignum_value(921).send(:-@)).should == 9223372036854776729
+      bignum_value(921).send(:-@).should == -18446744073709552537
+      (-bignum_value(921).send(:-@)).should == 18446744073709552537
     end
   end
 end