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diff --git a/test/pleroma/stats_test.exs b/test/pleroma/stats_test.exs
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.StatsTest do
+  use Pleroma.DataCase, async: true
+
+  import Pleroma.Factory
+
+  alias Pleroma.Stats
+  alias Pleroma.Web.CommonAPI
+
+  describe "user count" do
+    test "it ignores internal users" do
+      _user = insert(:user, local: true)
+      _internal = insert(:user, local: true, nickname: nil)
+      _internal = Pleroma.Web.ActivityPub.Relay.get_actor()
+
+      assert match?(%{stats: %{user_count: 1}}, Stats.calculate_stat_data())
+    end
+  end
+
+  describe "status visibility sum count" do
+    test "on new status" do
+      instance2 = "instance2.tld"
+      user = insert(:user)
+      other_user = insert(:user, %{ap_id: "https://#{instance2}/@actor"})
+
+      CommonAPI.post(user, %{visibility: "public", status: "hey"})
+
+      Enum.each(0..1, fn _ ->
+        CommonAPI.post(user, %{
+          visibility: "unlisted",
+          status: "hey"
+        })
+      end)
+
+      Enum.each(0..2, fn _ ->
+        CommonAPI.post(user, %{
+          visibility: "direct",
+          status: "hey @#{other_user.nickname}"
+        })
+      end)
+
+      Enum.each(0..3, fn _ ->
+        CommonAPI.post(user, %{
+          visibility: "private",
+          status: "hey"
+        })
+      end)
+
+      assert %{"direct" => 3, "private" => 4, "public" => 1, "unlisted" => 2} =
+               Stats.get_status_visibility_count()
+    end
+
+    test "on status delete" do
+      user = insert(:user)
+      {:ok, activity} = CommonAPI.post(user, %{visibility: "public", status: "hey"})
+      assert %{"public" => 1} = Stats.get_status_visibility_count()
+      CommonAPI.delete(activity.id, user)
+      assert %{"public" => 0} = Stats.get_status_visibility_count()
+    end
+
+    test "on status visibility update" do
+      user = insert(:user)
+      {:ok, activity} = CommonAPI.post(user, %{visibility: "public", status: "hey"})
+      assert %{"public" => 1, "private" => 0} = Stats.get_status_visibility_count()
+      {:ok, _} = CommonAPI.update_activity_scope(activity.id, %{visibility: "private"})
+      assert %{"public" => 0, "private" => 1} = Stats.get_status_visibility_count()
+    end
+
+    test "doesn't count unrelated activities" do
+      user = insert(:user)
+      other_user = insert(:user)
+      {:ok, activity} = CommonAPI.post(user, %{visibility: "public", status: "hey"})
+      _ = CommonAPI.follow(user, other_user)
+      CommonAPI.favorite(other_user, activity.id)
+      CommonAPI.repeat(activity.id, other_user)
+
+      assert %{"direct" => 0, "private" => 0, "public" => 1, "unlisted" => 0} =
+               Stats.get_status_visibility_count()
+    end
+  end
+
+  describe "status visibility by instance count" do
+    test "single instance" do
+      local_instance = Pleroma.Web.Endpoint.url() |> String.split("//") |> Enum.at(1)
+      instance2 = "instance2.tld"
+      user1 = insert(:user)
+      user2 = insert(:user, %{ap_id: "https://#{instance2}/@actor"})
+
+      CommonAPI.post(user1, %{visibility: "public", status: "hey"})
+
+      Enum.each(1..5, fn _ ->
+        CommonAPI.post(user1, %{
+          visibility: "unlisted",
+          status: "hey"
+        })
+      end)
+
+      Enum.each(1..10, fn _ ->
+        CommonAPI.post(user1, %{
+          visibility: "direct",
+          status: "hey @#{user2.nickname}"
+        })
+      end)
+
+      Enum.each(1..20, fn _ ->
+        CommonAPI.post(user2, %{
+          visibility: "private",
+          status: "hey"
+        })
+      end)
+
+      assert %{"direct" => 10, "private" => 0, "public" => 1, "unlisted" => 5} =
+               Stats.get_status_visibility_count(local_instance)
+
+      assert %{"direct" => 0, "private" => 20, "public" => 0, "unlisted" => 0} =
+               Stats.get_status_visibility_count(instance2)
+    end
+  end
+end