1 files changed, 9 insertions, 2 deletions
diff --git a/activejob/test/cases/argument_serialization_test.rb b/activejob/test/cases/argument_serialization_test.rb
index e5f1f087fe..8b2981926f 100644
--- a/activejob/test/cases/argument_serialization_test.rb
+++ b/activejob/test/cases/argument_serialization_test.rb
@@ -73,6 +73,7 @@ class ArgumentSerializationTest < ActiveSupport::TestCase
     string_key = { "a" => 1, "_aj_symbol_keys" => [] }
     another_string_key = { "a" => 1 }
     indifferent_access = { "a" => 1, "_aj_hash_with_indifferent_access" => true }
+    indifferent_access_symbol_key = symbol_key.with_indifferent_access
 
     assert_equal(
       { a: 1 },
@@ -90,6 +91,10 @@ class ArgumentSerializationTest < ActiveSupport::TestCase
       { "a" => 1 },
       ActiveJob::Arguments.deserialize([indifferent_access]).first
     )
+    assert_equal(
+      { a: 1 },
+      ActiveJob::Arguments.deserialize([indifferent_access_symbol_key]).first
+    )
   end
 
   test "should maintain hash with indifferent access" do
@@ -121,8 +126,10 @@ class ArgumentSerializationTest < ActiveSupport::TestCase
   end
 
   test "should not allow reserved hash keys" do
-    ["_aj_globalid", :_aj_globalid, "_aj_symbol_keys", :_aj_symbol_keys,
-     "_aj_hash_with_indifferent_access", :_aj_hash_with_indifferent_access].each do |key|
+    ["_aj_globalid", :_aj_globalid,
+     "_aj_symbol_keys", :_aj_symbol_keys,
+     "_aj_hash_with_indifferent_access", :_aj_hash_with_indifferent_access,
+     "_aj_serialized", :_aj_serialized].each do |key|
       assert_raises ActiveJob::SerializationError do
         ActiveJob::Arguments.serialize [key => 1]
       end