1 files changed, 5 insertions, 0 deletions
diff --git a/test/openssl/test_bn.rb b/test/openssl/test_bn.rb
index 274afba3bb..0b5cd84241 100644
--- a/test/openssl/test_bn.rb
+++ b/test/openssl/test_bn.rb
@@ -272,6 +272,11 @@ class OpenSSL::TestBN < OpenSSL::TestCase
     assert_equal(0, @e1.ucmp(-999))
     assert_instance_of(String, @e1.hash.to_s)
   end
+
+  def test_type_error
+    bug15760 = '[ruby-core:92231] [Bug #15760]'
+    assert_raise(TypeError, bug15760) { OpenSSL::BN.new(nil, 2) }
+  end
 end
 
 end