From baea36c95500b128869690958262db9538c3162e Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Tue, 30 Jun 2020 14:27:13 +0900
Subject: [PATCH] [ruby/openssl] hmac: add a test case for OpenSSL::HMAC
 singleton methods

https://github.com/ruby/openssl/commit/8253d7c9ce
---
 test/openssl/test_hmac.rb | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/openssl/test_hmac.rb b/test/openssl/test_hmac.rb
index 9cb3c5a864..7202a5902f 100644
--- a/test/openssl/test_hmac.rb
+++ b/test/openssl/test_hmac.rb
@@ -49,6 +49,15 @@ class OpenSSL::TestHMAC < OpenSSL::TestCase
     refute_equal h1, h2.digest
     refute_equal h1, h3
   end
+
+  def test_singleton_methods
+    # RFC 2202 2. Test Cases for HMAC-MD5
+    key = ["0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b"].pack("H*")
+    digest = OpenSSL::HMAC.digest("MD5", key, "Hi There")
+    assert_equal ["9294727a3638bb1c13f48ef8158bfc9d"].pack("H*"), digest
+    hexdigest = OpenSSL::HMAC.hexdigest("MD5", key, "Hi There")
+    assert_equal "9294727a3638bb1c13f48ef8158bfc9d", hexdigest
+  end
 end
 
 end