1 files changed, 11 insertions, 1 deletions
diff --git a/test/openssl/test_hmac.rb b/test/openssl/test_hmac.rb
index 831a5b6b37..9cb3c5a864 100644
--- a/test/openssl/test_hmac.rb
+++ b/test/openssl/test_hmac.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 require_relative 'utils'
 
 if defined?(OpenSSL)
@@ -39,6 +39,16 @@ class OpenSSL::TestHMAC < OpenSSL::TestCase
     second = h1.update("test").hexdigest
     assert_equal first, second
   end
+
+  def test_eq
+    h1 = OpenSSL::HMAC.new("KEY", "MD5")
+    h2 = OpenSSL::HMAC.new("KEY", OpenSSL::Digest.new("MD5"))
+    h3 = OpenSSL::HMAC.new("FOO", "MD5")
+
+    assert_equal h1, h2
+    refute_equal h1, h2.digest
+    refute_equal h1, h3
+  end
 end
 
 end