1 files changed, 16 insertions, 1 deletions
diff --git a/test/openssl/test_cipher.rb b/test/openssl/test_cipher.rb
index d83fa4ec3d..f6ec498087 100644
--- a/test/openssl/test_cipher.rb
+++ b/test/openssl/test_cipher.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 require_relative 'utils'
 
 if defined?(OpenSSL)
@@ -305,6 +305,21 @@ class OpenSSL::TestCipher < OpenSSL::TestCase
     }
   end
 
+  def test_crypt_after_key
+    key = ["2b7e151628aed2a6abf7158809cf4f3c"].pack("H*")
+    %w'ecb cbc cfb ctr gcm'.each do |c|
+      cipher = OpenSSL::Cipher.new("aes-128-#{c}")
+      cipher.key = key
+      cipher.encrypt
+      assert_raise(OpenSSL::Cipher::CipherError) { cipher.update("") }
+
+      cipher = OpenSSL::Cipher.new("aes-128-#{c}")
+      cipher.key = key
+      cipher.decrypt
+      assert_raise(OpenSSL::Cipher::CipherError) { cipher.update("") }
+    end
+  end
+
   private
 
   def new_encryptor(algo, **kwargs)