1 files changed, 18 insertions, 0 deletions
diff --git a/test/openssl/test_pkey.rb b/test/openssl/test_pkey.rb
index 5307fe5b..0a516f98 100644
--- a/test/openssl/test_pkey.rb
+++ b/test/openssl/test_pkey.rb
@@ -151,4 +151,22 @@ class OpenSSL::TestPKey < OpenSSL::PKeyTestCase
     assert_equal bob_pem, bob.public_to_pem
     assert_equal [shared_secret].pack("H*"), alice.derive(bob)
   end
+
+  def test_compare?
+    key1 = Fixtures.pkey("rsa1024")
+    key2 = Fixtures.pkey("rsa1024")
+    key3 = Fixtures.pkey("rsa2048")
+    key4 = Fixtures.pkey("dh-1")
+
+    assert_equal(true, key1.compare?(key2))
+    assert_equal(true, key1.public_key.compare?(key2))
+    assert_equal(true, key2.compare?(key1))
+    assert_equal(true, key2.public_key.compare?(key1))
+
+    assert_equal(false, key1.compare?(key3))
+
+    assert_raise(TypeError) do
+      key1.compare?(key4)
+    end
+  end
 end