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diff --git a/test/web/mastodon_api/controllers/instance_controller_test.exs b/test/web/mastodon_api/controllers/instance_controller_test.exs
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+++ b/test/web/mastodon_api/controllers/instance_controller_test.exs
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.MastodonAPI.InstanceControllerTest do
+  use Pleroma.Web.ConnCase
+
+  alias Pleroma.User
+  import Pleroma.Factory
+
+  test "get instance information", %{conn: conn} do
+    conn = get(conn, "/api/v1/instance")
+    assert result = json_response(conn, 200)
+
+    email = Pleroma.Config.get([:instance, :email])
+    # Note: not checking for "max_toot_chars" since it's optional
+    assert %{
+             "uri" => _,
+             "title" => _,
+             "description" => _,
+             "version" => _,
+             "email" => from_config_email,
+             "urls" => %{
+               "streaming_api" => _
+             },
+             "stats" => _,
+             "thumbnail" => _,
+             "languages" => _,
+             "registrations" => _,
+             "poll_limits" => _,
+             "upload_limit" => _,
+             "avatar_upload_limit" => _,
+             "background_upload_limit" => _,
+             "banner_upload_limit" => _
+           } = result
+
+    assert email == from_config_email
+  end
+
+  test "get instance stats", %{conn: conn} do
+    user = insert(:user, %{local: true})
+
+    user2 = insert(:user, %{local: true})
+    {:ok, _user2} = User.deactivate(user2, !user2.info.deactivated)
+
+    insert(:user, %{local: false, nickname: "u@peer1.com"})
+    insert(:user, %{local: false, nickname: "u@peer2.com"})
+
+    {:ok, _} = Pleroma.Web.CommonAPI.post(user, %{"status" => "cofe"})
+
+    # Stats should count users with missing or nil `info.deactivated` value
+
+    {:ok, _user} =
+      user.id
+      |> User.get_cached_by_id()
+      |> User.update_info(&Ecto.Changeset.change(&1, %{deactivated: nil}))
+
+    Pleroma.Stats.force_update()
+
+    conn = get(conn, "/api/v1/instance")
+
+    assert result = json_response(conn, 200)
+
+    stats = result["stats"]
+
+    assert stats
+    assert stats["user_count"] == 1
+    assert stats["status_count"] == 1
+    assert stats["domain_count"] == 2
+  end
+
+  test "get peers", %{conn: conn} do
+    insert(:user, %{local: false, nickname: "u@peer1.com"})
+    insert(:user, %{local: false, nickname: "u@peer2.com"})
+
+    Pleroma.Stats.force_update()
+
+    conn = get(conn, "/api/v1/instance/peers")
+
+    assert result = json_response(conn, 200)
+
+    assert ["peer1.com", "peer2.com"] == Enum.sort(result)
+  end
+end