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diff --git a/test/web/admin_api/controllers/chat_controller_test.exs b/test/web/admin_api/controllers/chat_controller_test.exs
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.ChatControllerTest do
+  use Pleroma.Web.ConnCase
+
+  import Pleroma.Factory
+
+  alias Pleroma.Chat
+  alias Pleroma.Chat.MessageReference
+  alias Pleroma.Config
+  alias Pleroma.ModerationLog
+  alias Pleroma.Object
+  alias Pleroma.Repo
+  alias Pleroma.Web.CommonAPI
+
+  defp admin_setup do
+    admin = insert(:user, is_admin: true)
+    token = insert(:oauth_admin_token, user: admin)
+
+    conn =
+      build_conn()
+      |> assign(:user, admin)
+      |> assign(:token, token)
+
+    {:ok, %{admin: admin, token: token, conn: conn}}
+  end
+
+  describe "DELETE /api/pleroma/admin/chats/:id/messages/:message_id" do
+    setup do: admin_setup()
+
+    test "it deletes a message from the chat", %{conn: conn, admin: admin} do
+      user = insert(:user)
+      recipient = insert(:user)
+
+      {:ok, message} =
+        CommonAPI.post_chat_message(user, recipient, "Hello darkness my old friend")
+
+      object = Object.normalize(message, false)
+
+      chat = Chat.get(user.id, recipient.ap_id)
+      recipient_chat = Chat.get(recipient.id, user.ap_id)
+
+      cm_ref = MessageReference.for_chat_and_object(chat, object)
+      recipient_cm_ref = MessageReference.for_chat_and_object(recipient_chat, object)
+
+      result =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> delete("/api/pleroma/admin/chats/#{chat.id}/messages/#{cm_ref.id}")
+        |> json_response_and_validate_schema(200)
+
+      log_entry = Repo.one(ModerationLog)
+
+      assert ModerationLog.get_log_entry_message(log_entry) ==
+               "@#{admin.nickname} deleted chat message ##{cm_ref.id}"
+
+      assert result["id"] == cm_ref.id
+      refute MessageReference.get_by_id(cm_ref.id)
+      refute MessageReference.get_by_id(recipient_cm_ref.id)
+      assert %{data: %{"type" => "Tombstone"}} = Object.get_by_id(object.id)
+    end
+  end
+
+  describe "GET /api/pleroma/admin/chats/:id/messages" do
+    setup do: admin_setup()
+
+    test "it paginates", %{conn: conn} do
+      user = insert(:user)
+      recipient = insert(:user)
+
+      Enum.each(1..30, fn _ ->
+        {:ok, _} = CommonAPI.post_chat_message(user, recipient, "hey")
+      end)
+
+      chat = Chat.get(user.id, recipient.ap_id)
+
+      result =
+        conn
+        |> get("/api/pleroma/admin/chats/#{chat.id}/messages")
+        |> json_response_and_validate_schema(200)
+
+      assert length(result) == 20
+
+      result =
+        conn
+        |> get("/api/pleroma/admin/chats/#{chat.id}/messages?max_id=#{List.last(result)["id"]}")
+        |> json_response_and_validate_schema(200)
+
+      assert length(result) == 10
+    end
+
+    test "it returns the messages for a given chat", %{conn: conn} do
+      user = insert(:user)
+      other_user = insert(:user)
+      third_user = insert(:user)
+
+      {:ok, _} = CommonAPI.post_chat_message(user, other_user, "hey")
+      {:ok, _} = CommonAPI.post_chat_message(user, third_user, "hey")
+      {:ok, _} = CommonAPI.post_chat_message(user, other_user, "how are you?")
+      {:ok, _} = CommonAPI.post_chat_message(other_user, user, "fine, how about you?")
+
+      chat = Chat.get(user.id, other_user.ap_id)
+
+      result =
+        conn
+        |> get("/api/pleroma/admin/chats/#{chat.id}/messages")
+        |> json_response_and_validate_schema(200)
+
+      result
+      |> Enum.each(fn message ->
+        assert message["chat_id"] == chat.id |> to_string()
+      end)
+
+      assert length(result) == 3
+    end
+  end
+
+  describe "GET /api/pleroma/admin/chats/:id" do
+    setup do: admin_setup()
+
+    test "it returns a chat", %{conn: conn} do
+      user = insert(:user)
+      other_user = insert(:user)
+
+      {:ok, chat} = Chat.get_or_create(user.id, other_user.ap_id)
+
+      result =
+        conn
+        |> get("/api/pleroma/admin/chats/#{chat.id}")
+        |> json_response_and_validate_schema(200)
+
+      assert result["id"] == to_string(chat.id)
+      assert %{} = result["sender"]
+      assert %{} = result["receiver"]
+      refute result["account"]
+    end
+  end
+
+  describe "unauthorized chat moderation" do
+    setup do
+      user = insert(:user)
+      recipient = insert(:user)
+
+      {:ok, message} = CommonAPI.post_chat_message(user, recipient, "Yo")
+      object = Object.normalize(message, false)
+      chat = Chat.get(user.id, recipient.ap_id)
+      cm_ref = MessageReference.for_chat_and_object(chat, object)
+
+      %{conn: conn} = oauth_access(["read:chats", "write:chats"])
+      %{conn: conn, chat: chat, cm_ref: cm_ref}
+    end
+
+    test "DELETE /api/pleroma/admin/chats/:id/messages/:message_id", %{
+      conn: conn,
+      chat: chat,
+      cm_ref: cm_ref
+    } do
+      conn
+      |> put_req_header("content-type", "application/json")
+      |> delete("/api/pleroma/admin/chats/#{chat.id}/messages/#{cm_ref.id}")
+      |> json_response(403)
+
+      assert MessageReference.get_by_id(cm_ref.id) == cm_ref
+    end
+
+    test "GET /api/pleroma/admin/chats/:id/messages", %{conn: conn, chat: chat} do
+      conn
+      |> get("/api/pleroma/admin/chats/#{chat.id}/messages")
+      |> json_response(403)
+    end
+
+    test "GET /api/pleroma/admin/chats/:id", %{conn: conn, chat: chat} do
+      conn
+      |> get("/api/pleroma/admin/chats/#{chat.id}")
+      |> json_response(403)
+    end
+  end
+
+  describe "unauthenticated chat moderation" do
+    setup do
+      user = insert(:user)
+      recipient = insert(:user)
+
+      {:ok, message} = CommonAPI.post_chat_message(user, recipient, "Yo")
+      object = Object.normalize(message, false)
+      chat = Chat.get(user.id, recipient.ap_id)
+      cm_ref = MessageReference.for_chat_and_object(chat, object)
+
+      %{conn: build_conn(), chat: chat, cm_ref: cm_ref}
+    end
+
+    test "DELETE /api/pleroma/admin/chats/:id/messages/:message_id", %{
+      conn: conn,
+      chat: chat,
+      cm_ref: cm_ref
+    } do
+      conn
+      |> put_req_header("content-type", "application/json")
+      |> delete("/api/pleroma/admin/chats/#{chat.id}/messages/#{cm_ref.id}")
+      |> json_response(403)
+
+      assert MessageReference.get_by_id(cm_ref.id) == cm_ref
+    end
+
+    test "GET /api/pleroma/admin/chats/:id/messages", %{conn: conn, chat: chat} do
+      conn
+      |> get("/api/pleroma/admin/chats/#{chat.id}/messages")
+      |> json_response(403)
+    end
+
+    test "GET /api/pleroma/admin/chats/:id", %{conn: conn, chat: chat} do
+      conn
+      |> get("/api/pleroma/admin/chats/#{chat.id}")
+      |> json_response(403)
+    end
+  end
+end