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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.Plugs.SetLocalePlugTest do
   6   use ExUnit.Case, async: true
   7   use Plug.Test
   8
   9   alias Pleroma.Web.Plugs.SetLocalePlug
  10   alias Plug.Conn
  11
  12   test "default locale is `en`" do
  13     conn =
  14       :get
  15       |> conn("/cofe")
  16       |> SetLocalePlug.call([])
  17
  18     assert "en" == Gettext.get_locale()
  19     assert %{locale: "en"} = conn.assigns
  20   end
  21
  22   test "use supported locale from `accept-language`" do
  23     conn =
  24       :get
  25       |> conn("/cofe")
  26       |> Conn.put_req_header(
  27         "accept-language",
  28         "ru, fr-CH, fr;q=0.9, en;q=0.8, *;q=0.5"
  29       )
  30       |> SetLocalePlug.call([])
  31
  32     assert "ru" == Gettext.get_locale()
  33     assert %{locale: "ru"} = conn.assigns
  34   end
  35
  36   test "fallback to the general language if a variant is not supported" do
  37     conn =
  38       :get
  39       |> conn("/cofe")
  40       |> Conn.put_req_header(
  41         "accept-language",
  42         "ru-CA;q=0.9, en;q=0.8, *;q=0.5"
  43       )
  44       |> SetLocalePlug.call([])
  45
  46     assert "ru" == Gettext.get_locale()
  47     assert %{locale: "ru"} = conn.assigns
  48   end
  49
  50   test "use supported locale with specifiers from `accept-language`" do
  51     conn =
  52       :get
  53       |> conn("/cofe")
  54       |> Conn.put_req_header(
  55         "accept-language",
  56         "zh-Hans;q=0.9, en;q=0.8, *;q=0.5"
  57       )
  58       |> SetLocalePlug.call([])
  59
  60     assert "zh_Hans" == Gettext.get_locale()
  61     assert %{locale: "zh_Hans"} = conn.assigns
  62   end
  63
  64   test "it assigns all supported locales" do
  65     conn =
  66       :get
  67       |> conn("/cofe")
  68       |> Conn.put_req_header(
  69         "accept-language",
  70         "ru, fr-CH, fr;q=0.9, en;q=0.8, x-unsupported;q=0.8, *;q=0.5"
  71       )
  72       |> SetLocalePlug.call([])
  73
  74     assert "ru" == Gettext.get_locale()
  75     assert %{locale: "ru", locales: ["ru", "fr", "en"]} = conn.assigns
  76   end
  77
  78   test "fallback to some variant of the language if the unqualified language is not supported" do
  79     conn =
  80       :get
  81       |> conn("/cofe")
  82       |> Conn.put_req_header(
  83         "accept-language",
  84         "zh;q=0.9, en;q=0.8, *;q=0.5"
  85       )
  86       |> SetLocalePlug.call([])
  87
  88     assert "zh_" <> _ = Gettext.get_locale()
  89     assert %{locale: "zh_" <> _} = conn.assigns
  90   end
  91
  92   test "use supported locale from cookie" do
  93     conn =
  94       :get
  95       |> conn("/cofe")
  96       |> put_req_cookie(SetLocalePlug.frontend_language_cookie_name(), "zh-Hans")
  97       |> Conn.put_req_header(
  98         "accept-language",
  99         "ru, fr-CH, fr;q=0.9, en;q=0.8, *;q=0.5"
 100       )
 101       |> SetLocalePlug.call([])
 102
 103     assert "zh_Hans" == Gettext.get_locale()
 104     assert %{locale: "zh_Hans"} = conn.assigns
 105   end
 106
 107   test "fallback to supported locale from `accept-language` if locale in cookie not supported" do
 108     conn =
 109       :get
 110       |> conn("/cofe")
 111       |> put_req_cookie(SetLocalePlug.frontend_language_cookie_name(), "x-nonexist")
 112       |> Conn.put_req_header(
 113         "accept-language",
 114         "ru, fr-CH, fr;q=0.9, en;q=0.8, *;q=0.5"
 115       )
 116       |> SetLocalePlug.call([])
 117
 118     assert "ru" == Gettext.get_locale()
 119     assert %{locale: "ru"} = conn.assigns
 120   end
 121
 122   test "fallback to default if nothing is supported" do
 123     conn =
 124       :get
 125       |> conn("/cofe")
 126       |> put_req_cookie(SetLocalePlug.frontend_language_cookie_name(), "x-nonexist")
 127       |> Conn.put_req_header(
 128         "accept-language",
 129         "x-nonexist"
 130       )
 131       |> SetLocalePlug.call([])
 132
 133     assert "en" == Gettext.get_locale()
 134     assert %{locale: "en"} = conn.assigns
 135   end
 136
 137   test "use default locale if locale from `accept-language` is not supported" do
 138     conn =
 139       :get
 140       |> conn("/cofe")
 141       |> Conn.put_req_header("accept-language", "tlh")
 142       |> SetLocalePlug.call([])
 143
 144     assert "en" == Gettext.get_locale()
 145     assert %{locale: "en"} = conn.assigns
 146   end
 147 end