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diff --git a/test/pleroma/maps_test.exs b/test/pleroma/maps_test.exs
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+++ b/test/pleroma/maps_test.exs
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+# Pleroma: A lightweight social networking server
+# Copyright © 2024 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.MapsTest do
+  use Pleroma.DataCase, async: true
+
+  alias Pleroma.Maps
+
+  describe "filter_empty_values/1" do
+    assert %{"bar" => "b", "ray" => ["foo"], "objs" => %{"a" => "b"}} ==
+             Maps.filter_empty_values(%{
+               "foo" => nil,
+               "fooz" => "",
+               "bar" => "b",
+               "rei" => [],
+               "ray" => ["foo"],
+               "obj" => %{},
+               "objs" => %{"a" => "b"}
+             })
+  end
+end