test/symmetric_encryption_test.rb in symmetric-encryption-3.0.2 vs test/symmetric_encryption_test.rb in symmetric-encryption-3.0.3

@@ -81,9 +81,25 @@
 
         should "decrypt string" do
           assert_equal @social_security_number, SymmetricEncryption.decrypt(@social_security_number_encrypted)
         end
 
+        should "return nil when encrypting nil" do
+          assert_equal nil, SymmetricEncryption.encrypt(nil)
+        end
+
+        should "return '' when encrypting ''" do
+          assert_equal '', SymmetricEncryption.encrypt('')
+        end
+
+        should "return nil when decrypting nil" do
+          assert_equal nil, SymmetricEncryption.decrypt(nil)
+        end
+
+        should "return '' when decrypting ''" do
+          assert_equal '', SymmetricEncryption.decrypt('')
+        end
+
         should "determine if string is encrypted" do
           assert_equal true, SymmetricEncryption.encrypted?(@social_security_number_encrypted)
           assert_equal false, SymmetricEncryption.encrypted?(@social_security_number)
         end
       end