2 files changed, 25 insertions, 0 deletions
diff --git a/test/ruby/test_rand.rb b/test/ruby/test_rand.rb
index d4258a7f1c..c24d6cd1ff 100644
--- a/test/ruby/test_rand.rb
+++ b/test/ruby/test_rand.rb
@@ -526,6 +526,17 @@ END
     assert_equal(2, gen.limit, bug7935)
   end
 
+  def test_random_ulong_limited_no_rand
+    c = Class.new do
+      undef rand
+      def bytes(n)
+        "\0"*n
+      end
+    end
+    gen = c.new.extend(Random::Formatter)
+    assert_equal(1, [1, 2].sample(random: gen))
+  end
+
   def test_default_seed
     assert_separately([], <<-End)
       seed = Random::DEFAULT::seed
diff --git a/test/test_securerandom.rb b/test/test_securerandom.rb
index 515d05e6b2..cd5cb1dee2 100644
--- a/test/test_securerandom.rb
+++ b/test/test_securerandom.rb
@@ -157,6 +157,20 @@ end
     end
   end
 
+  def test_s_random_number_not_default
+    msg = "SecureRandom#random_number should not be affected by srand"
+    seed = srand(0)
+    x = @it.random_number(1000)
+    10.times do|i|
+      srand(0)
+      return unless @it.random_number(1000) == x
+    end
+    srand(0)
+    assert_not_equal(x, @it.random_number(1000), msg)
+  ensure
+    srand(seed) if seed
+  end
+
   def test_uuid
     uuid = @it.uuid
     assert_equal(36, uuid.size)