random.c: private rand

* random.c (rb_random_ulong_limited): do not call private method
  rand.  [ruby-dev:49892] [Misc #13003]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56984 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb
index bdb603bec5..24a8eae346 100644
--- a/test/ruby/test_array.rb
+++ b/test/ruby/test_array.rb
@@ -2337,6 +2337,13 @@ class TestArray < Test::Unit::TestCase
     end
     ary = (0...10000).to_a
     assert_equal(ary.rotate, ary.shuffle(random: gen_to_int))
+
+    assert_raise(NoMethodError) {
+      ary.shuffle(random: Object.new)
+    }
+    assert_raise(NoMethodError) {
+      ary.shuffle!(random: Object.new)
+    }
   end
 
   def test_sample
@@ -2437,6 +2444,10 @@ class TestArray < Test::Unit::TestCase
     end
     ary = (0...10000).to_a
     assert_equal(5000, ary.sample(random: gen_to_int))
+
+    assert_raise(NoMethodError) {
+      ary.sample(random: Object.new)
+    }
   end
 
   def test_cycle