saving to DB only added by user settings

test/config/config_db_test.exs

@@ -15,8 +15,8 @@ defmodule Pleroma.ConfigDBTest do
   end
 
   test "create/1" do
-    {:ok, config} = ConfigDB.create(%{group: "pleroma", key: "some_key", value: "some_value"})
-    assert config == ConfigDB.get_by_params(%{group: "pleroma", key: "some_key"})
+    {:ok, config} = ConfigDB.create(%{group: ":pleroma", key: ":some_key", value: "some_value"})
+    assert config == ConfigDB.get_by_params(%{group: ":pleroma", key: ":some_key"})
   end
 
   test "update/1" do
@@ -26,6 +26,27 @@ defmodule Pleroma.ConfigDBTest do
     assert loaded == updated
   end
 
+  test "get_all_as_keyword/0" do
+    insert(:config)
+    insert(:config, group: ":quack", key: ":level", value: ConfigDB.to_binary(:info))
+    insert(:config, group: ":quack", key: ":meta", value: ConfigDB.to_binary([:none]))
+
+    insert(:config,
+      group: ":quack",
+      key: ":webhook_url",
+      value: ConfigDB.to_binary("https://hooks.slack.com/services/KEY/some_val")
+    )
+
+    assert [
+             pleroma: [{_, %{another: _, another_key: _}}],
+             quack: [
+               level: :info,
+               meta: [:none],
+               webhook_url: "https://hooks.slack.com/services/KEY/some_val"
+             ]
+           ] = ConfigDB.get_all_as_keyword()
+  end
+
   describe "update_or_create/1" do
     test "common" do
       config = insert(:config)

test/config/transfer_task_test.exs

@@ -47,6 +47,35 @@ defmodule Pleroma.Config.TransferTaskTest do
     end)
   end
 
+  test "transfer config values for 1 group and some keys" do
+    level = Application.get_env(:quack, :level)
+    meta = Application.get_env(:quack, :meta)
+
+    ConfigDB.create(%{
+      group: ":quack",
+      key: ":level",
+      value: :info
+    })
+
+    ConfigDB.create(%{
+      group: ":quack",
+      key: ":meta",
+      value: [:none]
+    })
+
+    Pleroma.Config.TransferTask.start_link([])
+
+    assert Application.get_env(:quack, :level) == :info
+    assert Application.get_env(:quack, :meta) == [:none]
+    default = Pleroma.Config.Holder.config(:quack, :webhook_url)
+    assert Application.get_env(:quack, :webhook_url) == default
+
+    on_exit(fn ->
+      Application.put_env(:quack, :level, level)
+      Application.put_env(:quack, :meta, meta)
+    end)
+  end
+
   test "non existing atom" do
     ConfigDB.create(%{
       group: ":pleroma",