diff --git a/lib/pleroma/activity.ex b/lib/pleroma/activity.ex
index 2c04a26f9..c1065611b 100644
--- a/lib/pleroma/activity.ex
+++ b/lib/pleroma/activity.ex
@@ -137,11 +137,18 @@ def get_by_ap_id_with_object(ap_id) do
     |> Repo.one()
   end
 
+  @spec get_by_id(String.t()) :: Activity.t() | nil
   def get_by_id(id) do
-    Activity
-    |> where([a], a.id == ^id)
-    |> restrict_deactivated_users()
-    |> Repo.one()
+    case FlakeId.flake_id?(id) do
+      true ->
+        Activity
+        |> where([a], a.id == ^id)
+        |> restrict_deactivated_users()
+        |> Repo.one()
+
+      _ ->
+        nil
+    end
   end
 
   def get_by_id_with_object(id) do
diff --git a/lib/pleroma/object.ex b/lib/pleroma/object.ex
index 3fa407931..cdfbacb0e 100644
--- a/lib/pleroma/object.ex
+++ b/lib/pleroma/object.ex
@@ -248,4 +248,11 @@ def increase_vote_count(ap_id, name) do
       _ -> :noop
     end
   end
+
+  @doc "Updates data field of an object"
+  def update_data(%Object{data: data} = object, attrs \\ %{}) do
+    object
+    |> Object.change(%{data: Map.merge(data || %{}, attrs)})
+    |> Repo.update()
+  end
 end
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index f3dcf7ad4..4c1cdd042 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -505,6 +505,11 @@ def get_all_by_ap_id(ap_ids) do
     |> Repo.all()
   end
 
+  def get_all_by_ids(ids) do
+    from(u in __MODULE__, where: u.id in ^ids)
+    |> Repo.all()
+  end
+
   # This is mostly an SPC migration fix. This guesses the user nickname by taking the last part
   # of the ap_id and the domain and tries to get that user
   def get_by_guessed_nickname(ap_id) do
@@ -765,6 +770,19 @@ def update_note_count(%User{} = user) do
     update_info(user, &User.Info.set_note_count(&1, note_count))
   end
 
+  def update_mascot(user, url) do
+    info_changeset =
+      User.Info.mascot_update(
+        user.info,
+        url
+      )
+
+    user
+    |> change()
+    |> put_embed(:info, info_changeset)
+    |> update_and_set_cache()
+  end
+
   @spec maybe_fetch_follow_information(User.t()) :: User.t()
   def maybe_fetch_follow_information(user) do
     with {:ok, user} <- fetch_follow_information(user) do
diff --git a/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex b/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex
index a839a93c2..0878f7ba6 100644
--- a/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex
@@ -40,8 +40,6 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   alias Pleroma.Web.OAuth.Token
   alias Pleroma.Web.TwitterAPI.TwitterAPI
 
-  import Ecto.Query
-
   require Logger
   require Pleroma.Constants
 
@@ -393,9 +391,7 @@ def poll_vote(%{assigns: %{user: user}} = conn, %{"id" => id, "choices" => choic
   end
 
   def relationships(%{assigns: %{user: user}} = conn, %{"id" => id}) do
-    id = List.wrap(id)
-    q = from(u in User, where: u.id in ^id)
-    targets = Repo.all(q)
+    targets = User.get_all_by_ids(List.wrap(id))
 
     conn
     |> put_view(AccountView)
@@ -405,19 +401,15 @@ def relationships(%{assigns: %{user: user}} = conn, %{"id" => id}) do
   # Instead of returning a 400 when no "id" params is present, Mastodon returns an empty array.
   def relationships(%{assigns: %{user: _user}} = conn, _), do: json(conn, [])
 
-  def update_media(%{assigns: %{user: user}} = conn, data) do
-    with %Object{} = object <- Repo.get(Object, data["id"]),
+  def update_media(
+        %{assigns: %{user: user}} = conn,
+        %{"id" => id, "description" => description} = _
+      )
+      when is_binary(description) do
+    with %Object{} = object <- Repo.get(Object, id),
          true <- Object.authorize_mutation(object, user),
-         true <- is_binary(data["description"]),
-         description <- data["description"] do
-      new_data = %{object.data | "name" => description}
-
-      {:ok, _} =
-        object
-        |> Object.change(%{data: new_data})
-        |> Repo.update()
-
-      attachment_data = Map.put(new_data, "id", object.id)
+         {:ok, %Object{data: data}} <- Object.update_data(object, %{"name" => description}) do
+      attachment_data = Map.put(data, "id", object.id)
 
       conn
       |> put_view(StatusView)
@@ -425,6 +417,8 @@ def update_media(%{assigns: %{user: user}} = conn, data) do
     end
   end
 
+  def update_media(_conn, _data), do: {:error, :bad_request}
+
   def upload(%{assigns: %{user: user}} = conn, %{"file" => file} = data) do
     with {:ok, object} <-
            ActivityPub.upload(
@@ -459,8 +453,7 @@ def set_mascot(%{assigns: %{user: user}} = conn, %{"file" => file}) do
   def get_mascot(%{assigns: %{user: user}} = conn, _params) do
     mascot = User.get_mascot(user)
 
-    conn
-    |> json(mascot)
+    json(conn, mascot)
   end
 
   def followers(%{assigns: %{user: for_user}} = conn, %{"id" => id} = params) do
@@ -633,10 +626,8 @@ def subscribe(%{assigns: %{user: user}} = conn, %{"id" => id}) do
       |> put_view(AccountView)
       |> render("relationship.json", %{user: user, target: subscription_target})
     else
-      {:error, message} ->
-        conn
-        |> put_status(:forbidden)
-        |> json(%{error: message})
+      nil -> {:error, :not_found}
+      e -> e
     end
   end
 
@@ -647,10 +638,8 @@ def unsubscribe(%{assigns: %{user: user}} = conn, %{"id" => id}) do
       |> put_view(AccountView)
       |> render("relationship.json", %{user: user, target: subscription_target})
     else
-      {:error, message} ->
-        conn
-        |> put_status(:forbidden)
-        |> json(%{error: message})
+      nil -> {:error, :not_found}
+      e -> e
     end
   end
 
@@ -721,8 +710,10 @@ def bookmarks(%{assigns: %{user: user}} = conn, params) do
 
   def account_lists(%{assigns: %{user: user}} = conn, %{"id" => account_id}) do
     lists = Pleroma.List.get_lists_account_belongs(user, account_id)
-    res = ListView.render("lists.json", lists: lists)
-    json(conn, res)
+
+    conn
+    |> put_view(ListView)
+    |> render("index.json", %{lists: lists})
   end
 
   def index(%{assigns: %{user: user}} = conn, _params) do
@@ -848,7 +839,7 @@ def login(%{assigns: %{user: %User{}}} = conn, _params) do
   @doc "Local Mastodon FE login init action"
   def login(conn, %{"code" => auth_token}) do
     with {:ok, app} <- get_or_make_app(),
-         %Authorization{} = auth <- Repo.get_by(Authorization, token: auth_token, app_id: app.id),
+         {:ok, auth} <- Authorization.get_by_token(app, auth_token),
          {:ok, token} <- Token.exchange_token(app, auth) do
       conn
       |> put_session(:oauth_token, token.token)
@@ -860,9 +851,7 @@ def login(conn, %{"code" => auth_token}) do
   def login(conn, _) do
     with {:ok, app} <- get_or_make_app() do
       path =
-        o_auth_path(
-          conn,
-          :authorize,
+        o_auth_path(conn, :authorize,
           response_type: "code",
           client_id: app.client_id,
           redirect_uri: ".",
@@ -884,31 +873,12 @@ defp local_mastodon_root_path(conn) do
     end
   end
 
+  @spec get_or_make_app() :: {:ok, App.t()} | {:error, Ecto.Changeset.t()}
   defp get_or_make_app do
-    find_attrs = %{client_name: @local_mastodon_name, redirect_uris: "."}
-    scopes = ["read", "write", "follow", "push"]
-
-    with %App{} = app <- Repo.get_by(App, find_attrs) do
-      {:ok, app} =
-        if app.scopes == scopes do
-          {:ok, app}
-        else
-          app
-          |> Changeset.change(%{scopes: scopes})
-          |> Repo.update()
-        end
-
-      {:ok, app}
-    else
-      _e ->
-        cs =
-          App.register_changeset(
-            %App{},
-            Map.put(find_attrs, :scopes, scopes)
-          )
-
-        Repo.insert(cs)
-    end
+    App.get_or_make(
+      %{client_name: @local_mastodon_name, redirect_uris: "."},
+      ["read", "write", "follow", "push"]
+    )
   end
 
   def logout(conn, _) do
@@ -917,16 +887,8 @@ def logout(conn, _) do
     |> redirect(to: "/")
   end
 
-  def relationship_noop(%{assigns: %{user: user}} = conn, %{"id" => id}) do
-    Logger.debug("Unimplemented, returning unmodified relationship")
-
-    with %User{} = target <- User.get_cached_by_id(id) do
-      conn
-      |> put_view(AccountView)
-      |> render("relationship.json", %{user: user, target: target})
-    end
-  end
-
+  # Stubs for unimplemented mastodon api
+  #
   def empty_array(conn, _) do
     Logger.debug("Unimplemented, returning an empty array")
     json(conn, [])
@@ -1033,7 +995,7 @@ def account_register(
     end
   end
 
-  def account_register(%{assigns: %{app: _app}} = conn, _params) do
+  def account_register(%{assigns: %{app: _app}} = conn, _) do
     render_error(conn, :bad_request, "Missing parameters")
   end
 
diff --git a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
index ae3d51575..f4de9285b 100644
--- a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
@@ -207,6 +207,7 @@ def unmute_conversation(%{assigns: %{user: user}} = conn, %{"id" => id}) do
   end
 
   @doc "GET /api/v1/statuses/:id/card"
+  @deprecated "https://github.com/tootsuite/mastodon/pull/11213"
   def card(%{assigns: %{user: user}} = conn, %{"id" => status_id}) do
     with %Activity{} = activity <- Activity.get_by_id(status_id),
          true <- Visibility.visible_for_user?(activity, user) do
diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index 715d40766..2321d0de2 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -339,9 +339,7 @@ def render("card.json", %{rich_media: rich_media, page_url: page_url}) do
     }
   end
 
-  def render("card.json", _) do
-    nil
-  end
+  def render("card.json", _), do: nil
 
   def render("attachment.json", %{attachment: attachment}) do
     [attachment_url | _] = attachment["url"]
diff --git a/lib/pleroma/web/oauth/app.ex b/lib/pleroma/web/oauth/app.ex
index ddcdb1871..cc3fb1ce5 100644
--- a/lib/pleroma/web/oauth/app.ex
+++ b/lib/pleroma/web/oauth/app.ex
@@ -5,6 +5,7 @@
 defmodule Pleroma.Web.OAuth.App do
   use Ecto.Schema
   import Ecto.Changeset
+  alias Pleroma.Repo
 
   @type t :: %__MODULE__{}
 
@@ -39,4 +40,29 @@ def register_changeset(struct, params \\ %{}) do
       changeset
     end
   end
+
+  @doc """
+  Gets app by attrs or create new  with attrs.
+  And updates the scopes if need.
+  """
+  @spec get_or_make(map(), list(String.t())) :: {:ok, App.t()} | {:error, Ecto.Changeset.t()}
+  def get_or_make(attrs, scopes) do
+    with %__MODULE__{} = app <- Repo.get_by(__MODULE__, attrs) do
+      update_scopes(app, scopes)
+    else
+      _e ->
+        %__MODULE__{}
+        |> register_changeset(Map.put(attrs, :scopes, scopes))
+        |> Repo.insert()
+    end
+  end
+
+  defp update_scopes(%__MODULE__{} = app, []), do: {:ok, app}
+  defp update_scopes(%__MODULE__{scopes: scopes} = app, scopes), do: {:ok, app}
+
+  defp update_scopes(%__MODULE__{} = app, scopes) do
+    app
+    |> change(%{scopes: scopes})
+    |> Repo.update()
+  end
 end
diff --git a/lib/pleroma/web/twitter_api/twitter_api.ex b/lib/pleroma/web/twitter_api/twitter_api.ex
index 8eda762c7..bfd838902 100644
--- a/lib/pleroma/web/twitter_api/twitter_api.ex
+++ b/lib/pleroma/web/twitter_api/twitter_api.ex
@@ -29,7 +29,7 @@ def register_user(params, opts \\ []) do
     captcha_enabled = Pleroma.Config.get([Pleroma.Captcha, :enabled])
     # true if captcha is disabled or enabled and valid, false otherwise
     captcha_ok =
-      if !captcha_enabled do
+      if not captcha_enabled do
         :ok
       else
         Pleroma.Captcha.validate(
diff --git a/test/web/mastodon_api/mastodon_api_controller_test.exs b/test/web/mastodon_api/mastodon_api_controller_test.exs
index da9f1e9b8..b3acb7a22 100644
--- a/test/web/mastodon_api/mastodon_api_controller_test.exs
+++ b/test/web/mastodon_api/mastodon_api_controller_test.exs
@@ -399,6 +399,17 @@ test "returns the relationships for the current user", %{conn: conn} do
 
       assert to_string(other_user.id) == relationship["id"]
     end
+
+    test "returns an empty list on a bad request", %{conn: conn} do
+      user = insert(:user)
+
+      conn =
+        conn
+        |> assign(:user, user)
+        |> get("/api/v1/accounts/relationships", %{})
+
+      assert [] = json_response(conn, 200)
+    end
   end
 
   describe "media upload" do
@@ -533,70 +544,72 @@ test "respects limit_to_local_content == :unauthenticated for remote user nickna
     end
   end
 
-  test "mascot upload", %{conn: conn} do
-    user = insert(:user)
+  describe "/api/v1/pleroma/mascot" do
+    test "mascot upload", %{conn: conn} do
+      user = insert(:user)
 
-    non_image_file = %Plug.Upload{
-      content_type: "audio/mpeg",
-      path: Path.absname("test/fixtures/sound.mp3"),
-      filename: "sound.mp3"
-    }
+      non_image_file = %Plug.Upload{
+        content_type: "audio/mpeg",
+        path: Path.absname("test/fixtures/sound.mp3"),
+        filename: "sound.mp3"
+      }
 
-    conn =
-      conn
-      |> assign(:user, user)
-      |> put("/api/v1/pleroma/mascot", %{"file" => non_image_file})
+      conn =
+        conn
+        |> assign(:user, user)
+        |> put("/api/v1/pleroma/mascot", %{"file" => non_image_file})
 
-    assert json_response(conn, 415)
+      assert json_response(conn, 415)
 
-    file = %Plug.Upload{
-      content_type: "image/jpg",
-      path: Path.absname("test/fixtures/image.jpg"),
-      filename: "an_image.jpg"
-    }
+      file = %Plug.Upload{
+        content_type: "image/jpg",
+        path: Path.absname("test/fixtures/image.jpg"),
+        filename: "an_image.jpg"
+      }
 
-    conn =
-      build_conn()
-      |> assign(:user, user)
-      |> put("/api/v1/pleroma/mascot", %{"file" => file})
+      conn =
+        build_conn()
+        |> assign(:user, user)
+        |> put("/api/v1/pleroma/mascot", %{"file" => file})
 
-    assert %{"id" => _, "type" => image} = json_response(conn, 200)
-  end
+      assert %{"id" => _, "type" => image} = json_response(conn, 200)
+    end
 
-  test "mascot retrieving", %{conn: conn} do
-    user = insert(:user)
-    # When user hasn't set a mascot, we should just get pleroma tan back
-    conn =
-      conn
-      |> assign(:user, user)
-      |> get("/api/v1/pleroma/mascot")
+    test "mascot retrieving", %{conn: conn} do
+      user = insert(:user)
+      # When user hasn't set a mascot, we should just get pleroma tan back
+      conn =
+        conn
+        |> assign(:user, user)
+        |> get("/api/v1/pleroma/mascot")
 
-    assert %{"url" => url} = json_response(conn, 200)
-    assert url =~ "pleroma-fox-tan-smol"
+      assert %{"url" => url} = json_response(conn, 200)
+      assert url =~ "pleroma-fox-tan-smol"
 
-    # When a user sets their mascot, we should get that back
-    file = %Plug.Upload{
-      content_type: "image/jpg",
-      path: Path.absname("test/fixtures/image.jpg"),
-      filename: "an_image.jpg"
-    }
+      # When a user sets their mascot, we should get that back
+      file = %Plug.Upload{
+        content_type: "image/jpg",
+        path: Path.absname("test/fixtures/image.jpg"),
+        filename: "an_image.jpg"
+      }
 
-    conn =
-      build_conn()
-      |> assign(:user, user)
-      |> put("/api/v1/pleroma/mascot", %{"file" => file})
+      conn =
+        build_conn()
+        |> assign(:user, user)
+        |> put("/api/v1/pleroma/mascot", %{"file" => file})
 
-    assert json_response(conn, 200)
+      assert json_response(conn, 200)
 
-    user = User.get_cached_by_id(user.id)
+      user = User.get_cached_by_id(user.id)
 
-    conn =
-      build_conn()
-      |> assign(:user, user)
-      |> get("/api/v1/pleroma/mascot")
+      conn =
+        build_conn()
+        |> assign(:user, user)
+        |> get("/api/v1/pleroma/mascot")
 
-    assert %{"url" => url, "type" => "image"} = json_response(conn, 200)
-    assert url =~ "an_image"
+      assert %{"url" => url, "type" => "image"} = json_response(conn, 200)
+      assert url =~ "an_image"
+    end
   end
 
   test "getting followers", %{conn: conn} do
@@ -908,23 +921,51 @@ test "without notifications", %{conn: conn} do
     end
   end
 
-  test "subscribing / unsubscribing to a user", %{conn: conn} do
-    user = insert(:user)
-    subscription_target = insert(:user)
+  describe "subscribing / unsubscribing" do
+    test "subscribing / unsubscribing to a user", %{conn: conn} do
+      user = insert(:user)
+      subscription_target = insert(:user)
 
-    conn =
-      conn
-      |> assign(:user, user)
-      |> post("/api/v1/pleroma/accounts/#{subscription_target.id}/subscribe")
+      conn =
+        conn
+        |> assign(:user, user)
+        |> post("/api/v1/pleroma/accounts/#{subscription_target.id}/subscribe")
 
-    assert %{"id" => _id, "subscribing" => true} = json_response(conn, 200)
+      assert %{"id" => _id, "subscribing" => true} = json_response(conn, 200)
 
-    conn =
-      build_conn()
-      |> assign(:user, user)
-      |> post("/api/v1/pleroma/accounts/#{subscription_target.id}/unsubscribe")
+      conn =
+        build_conn()
+        |> assign(:user, user)
+        |> post("/api/v1/pleroma/accounts/#{subscription_target.id}/unsubscribe")
 
-    assert %{"id" => _id, "subscribing" => false} = json_response(conn, 200)
+      assert %{"id" => _id, "subscribing" => false} = json_response(conn, 200)
+    end
+  end
+
+  describe "subscribing" do
+    test "returns 404 when subscription_target not found", %{conn: conn} do
+      user = insert(:user)
+
+      conn =
+        conn
+        |> assign(:user, user)
+        |> post("/api/v1/pleroma/accounts/target_id/subscribe")
+
+      assert %{"error" => "Record not found"} = json_response(conn, 404)
+    end
+  end
+
+  describe "unsubscribing" do
+    test "returns 404 when subscription_target not found", %{conn: conn} do
+      user = insert(:user)
+
+      conn =
+        conn
+        |> assign(:user, user)
+        |> post("/api/v1/pleroma/accounts/target_id/unsubscribe")
+
+      assert %{"error" => "Record not found"} = json_response(conn, 404)
+    end
   end
 
   test "getting a list of mutes", %{conn: conn} do
@@ -1573,6 +1614,17 @@ test "redirects to the getting-started page when referer is not present", %{conn
   end
 
   describe "create account by app" do
+    setup do
+      valid_params = %{
+        username: "lain",
+        email: "lain@example.org",
+        password: "PlzDontHackLain",
+        agreement: true
+      }
+
+      [valid_params: valid_params]
+    end
+
     test "Account registration via Application", %{conn: conn} do
       conn =
         conn
@@ -1616,6 +1668,7 @@ test "Account registration via Application", %{conn: conn} do
           username: "lain",
           email: "lain@example.org",
           password: "PlzDontHackLain",
+          bio: "Test Bio",
           agreement: true
         })
 
@@ -1634,6 +1687,18 @@ test "Account registration via Application", %{conn: conn} do
       assert token_from_db.user.info.confirmation_pending
     end
 
+    test "returns error when user already registred", %{conn: conn, valid_params: valid_params} do
+      _user = insert(:user, email: "lain@example.org")
+      app_token = insert(:oauth_token, user: nil)
+
+      conn =
+        conn
+        |> put_req_header("authorization", "Bearer " <> app_token.token)
+
+      res = post(conn, "/api/v1/accounts", valid_params)
+      assert json_response(res, 400) == %{"error" => "{\"email\":[\"has already been taken\"]}"}
+    end
+
     test "rate limit", %{conn: conn} do
       app_token = insert(:oauth_token, user: nil)
 
@@ -1677,6 +1742,41 @@ test "rate limit", %{conn: conn} do
 
       assert json_response(conn, :too_many_requests) == %{"error" => "Throttled"}
     end
+
+    test "returns bad_request if missing required params", %{
+      conn: conn,
+      valid_params: valid_params
+    } do
+      app_token = insert(:oauth_token, user: nil)
+
+      conn =
+        conn
+        |> put_req_header("authorization", "Bearer " <> app_token.token)
+
+      res = post(conn, "/api/v1/accounts", valid_params)
+      assert json_response(res, 200)
+
+      [{127, 0, 0, 1}, {127, 0, 0, 2}, {127, 0, 0, 3}, {127, 0, 0, 4}]
+      |> Stream.zip(valid_params)
+      |> Enum.each(fn {ip, {attr, _}} ->
+        res =
+          conn
+          |> Map.put(:remote_ip, ip)
+          |> post("/api/v1/accounts", Map.delete(valid_params, attr))
+          |> json_response(400)
+
+        assert res == %{"error" => "Missing parameters"}
+      end)
+    end
+
+    test "returns forbidden if token is invalid", %{conn: conn, valid_params: valid_params} do
+      conn =
+        conn
+        |> put_req_header("authorization", "Bearer " <> "invalid-token")
+
+      res = post(conn, "/api/v1/accounts", valid_params)
+      assert json_response(res, 403) == %{"error" => "Invalid credentials"}
+    end
   end
 
   describe "GET /api/v1/polls/:id" do
@@ -2019,4 +2119,115 @@ test "returns suggestions", %{conn: conn, user: user, other_user: other_user} do
              ]
     end
   end
+
+  describe "PUT /api/v1/media/:id" do
+    setup do
+      actor = insert(:user)
+
+      file = %Plug.Upload{
+        content_type: "image/jpg",
+        path: Path.absname("test/fixtures/image.jpg"),
+        filename: "an_image.jpg"
+      }
+
+      {:ok, %Object{} = object} =
+        ActivityPub.upload(
+          file,
+          actor: User.ap_id(actor),
+          description: "test-m"
+        )
+
+      [actor: actor, object: object]
+    end
+
+    test "updates name of media", %{conn: conn, actor: actor, object: object} do
+      media =
+        conn
+        |> assign(:user, actor)
+        |> put("/api/v1/media/#{object.id}", %{"description" => "test-media"})
+        |> json_response(:ok)
+
+      assert media["description"] == "test-media"
+      assert refresh_record(object).data["name"] == "test-media"
+    end
+
+    test "returns error wheb request is bad", %{conn: conn, actor: actor, object: object} do
+      media =
+        conn
+        |> assign(:user, actor)
+        |> put("/api/v1/media/#{object.id}", %{})
+        |> json_response(400)
+
+      assert media == %{"error" => "bad_request"}
+    end
+  end
+
+  describe "DELETE /auth/sign_out" do
+    test "redirect to root page", %{conn: conn} do
+      user = insert(:user)
+
+      conn =
+        conn
+        |> assign(:user, user)
+        |> delete("/auth/sign_out")
+
+      assert conn.status == 302
+      assert redirected_to(conn) == "/"
+    end
+  end
+
+  describe "GET /api/v1/accounts/:id/lists - account_lists" do
+    test "returns lists to which the account belongs", %{conn: conn} do
+      user = insert(:user)
+      other_user = insert(:user)
+      assert {:ok, %Pleroma.List{} = list} = Pleroma.List.create("Test List", user)
+      {:ok, %{following: _following}} = Pleroma.List.follow(list, other_user)
+
+      res =
+        conn
+        |> assign(:user, user)
+        |> get("/api/v1/accounts/#{other_user.id}/lists")
+        |> json_response(200)
+
+      assert res == [%{"id" => to_string(list.id), "title" => "Test List"}]
+    end
+  end
+
+  describe "empty_array, stubs for mastodon api" do
+    test "GET /api/v1/accounts/:id/identity_proofs", %{conn: conn} do
+      user = insert(:user)
+
+      res =
+        conn
+        |> assign(:user, user)
+        |> get("/api/v1/accounts/#{user.id}/identity_proofs")
+        |> json_response(200)
+
+      assert res == []
+    end
+
+    test "GET /api/v1/endorsements", %{conn: conn} do
+      user = insert(:user)
+
+      res =
+        conn
+        |> assign(:user, user)
+        |> get("/api/v1/endorsements")
+        |> json_response(200)
+
+      assert res == []
+    end
+
+    test "GET /api/v1/trends", %{conn: conn} do
+      user = insert(:user)
+
+      res =
+        conn
+        |> assign(:user, user)
+        |> get("/api/v1/trends")
+        |> json_response(200)
+
+      assert res == []
+    end
+  end
 end
diff --git a/test/web/oauth/app_test.exs b/test/web/oauth/app_test.exs
new file mode 100644
index 000000000..195b8c17f
--- /dev/null
+++ b/test/web/oauth/app_test.exs
@@ -0,0 +1,33 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.OAuth.AppTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Web.OAuth.App
+  import Pleroma.Factory
+
+  describe "get_or_make/2" do
+    test "gets exist app" do
+      attrs = %{client_name: "Mastodon-Local", redirect_uris: "."}
+      app = insert(:oauth_app, Map.merge(attrs, %{scopes: ["read", "write"]}))
+      {:ok, %App{} = exist_app} = App.get_or_make(attrs, [])
+      assert exist_app == app
+    end
+
+    test "make app" do
+      attrs = %{client_name: "Mastodon-Local", redirect_uris: "."}
+      {:ok, %App{} = app} = App.get_or_make(attrs, ["write"])
+      assert app.scopes == ["write"]
+    end
+
+    test "gets exist app and updates scopes" do
+      attrs = %{client_name: "Mastodon-Local", redirect_uris: "."}
+      app = insert(:oauth_app, Map.merge(attrs, %{scopes: ["read", "write"]}))
+      {:ok, %App{} = exist_app} = App.get_or_make(attrs, ["read", "write", "follow", "push"])
+      assert exist_app.id == app.id
+      assert exist_app.scopes == ["read", "write", "follow", "push"]
+    end
+  end
+end