git.squeep.com Git - akkoma/blob - test/web/ostatus/ostatus_test.exs

   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.OStatusTest do
   6   use Pleroma.DataCase
   7   alias Pleroma.Activity
   8   alias Pleroma.Instances
   9   alias Pleroma.Object
  10   alias Pleroma.Repo
  11   alias Pleroma.User
  12   alias Pleroma.Web.OStatus
  13   alias Pleroma.Web.XML
  14   import Pleroma.Factory
  15   import ExUnit.CaptureLog
  16
  17   setup_all do
  18     Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
  19     :ok
  20   end
  21
  22   test "don't insert create notes twice" do
  23     incoming = File.read!("test/fixtures/incoming_note_activity.xml")
  24     {:ok, [activity]} = OStatus.handle_incoming(incoming)
  25     assert {:ok, [activity]} == OStatus.handle_incoming(incoming)
  26   end
  27
  28   test "handle incoming note - GS, Salmon" do
  29     incoming = File.read!("test/fixtures/incoming_note_activity.xml")
  30     {:ok, [activity]} = OStatus.handle_incoming(incoming)
  31     object = Object.normalize(activity.data["object"])
  32
  33     user = User.get_by_ap_id(activity.data["actor"])
  34     assert user.info.note_count == 1
  35     assert activity.data["type"] == "Create"
  36     assert object.data["type"] == "Note"
  37
  38     assert object.data["id"] == "tag:gs.example.org:4040,2017-04-23:noticeId=29:objectType=note"
  39
  40     assert activity.data["published"] == "2017-04-23T14:51:03+00:00"
  41     assert object.data["published"] == "2017-04-23T14:51:03+00:00"
  42
  43     assert activity.data["context"] ==
  44              "tag:gs.example.org:4040,2017-04-23:objectType=thread:nonce=f09e22f58abd5c7b"
  45
  46     assert "http://pleroma.example.org:4000/users/lain3" in activity.data["to"]
  47     assert object.data["emoji"] == %{"marko" => "marko.png", "reimu" => "reimu.png"}
  48     assert activity.local == false
  49   end
  50
  51   test "handle incoming notes - GS, subscription" do
  52     incoming = File.read!("test/fixtures/ostatus_incoming_post.xml")
  53     {:ok, [activity]} = OStatus.handle_incoming(incoming)
  54     object = Object.normalize(activity.data["object"])
  55
  56     assert activity.data["type"] == "Create"
  57     assert object.data["type"] == "Note"
  58     assert object.data["actor"] == "https://social.heldscal.la/user/23211"
  59     assert object.data["content"] == "Will it blend?"
  60     user = User.get_cached_by_ap_id(activity.data["actor"])
  61     assert User.ap_followers(user) in activity.data["to"]
  62     assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"]
  63   end
  64
  65   test "handle incoming notes with attachments - GS, subscription" do
  66     incoming = File.read!("test/fixtures/incoming_websub_gnusocial_attachments.xml")
  67     {:ok, [activity]} = OStatus.handle_incoming(incoming)
  68     object = Object.normalize(activity.data["object"])
  69
  70     assert activity.data["type"] == "Create"
  71     assert object.data["type"] == "Note"
  72     assert object.data["actor"] == "https://social.heldscal.la/user/23211"
  73     assert object.data["attachment"] |> length == 2
  74     assert object.data["external_url"] == "https://social.heldscal.la/notice/2020923"
  75     assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"]
  76   end
  77
  78   test "handle incoming notes with tags" do
  79     incoming = File.read!("test/fixtures/ostatus_incoming_post_tag.xml")
  80     {:ok, [activity]} = OStatus.handle_incoming(incoming)
  81     object = Object.normalize(activity.data["object"])
  82
  83     assert object.data["tag"] == ["nsfw"]
  84     assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"]
  85   end
  86
  87   test "handle incoming notes - Mastodon, salmon, reply" do
  88     # It uses the context of the replied to object
  89     Repo.insert!(%Object{
  90       data: %{
  91         "id" => "https://pleroma.soykaf.com/objects/c237d966-ac75-4fe3-a87a-d89d71a3a7a4",
  92         "context" => "2hu"
  93       }
  94     })
  95
  96     incoming = File.read!("test/fixtures/incoming_reply_mastodon.xml")
  97     {:ok, [activity]} = OStatus.handle_incoming(incoming)
  98     object = Object.normalize(activity.data["object"])
  99
 100     assert activity.data["type"] == "Create"
 101     assert object.data["type"] == "Note"
 102     assert object.data["actor"] == "https://mastodon.social/users/lambadalambda"
 103     assert activity.data["context"] == "2hu"
 104     assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"]
 105   end
 106
 107   test "handle incoming notes - Mastodon, with CW" do
 108     incoming = File.read!("test/fixtures/mastodon-note-cw.xml")
 109     {:ok, [activity]} = OStatus.handle_incoming(incoming)
 110     object = Object.normalize(activity.data["object"])
 111
 112     assert activity.data["type"] == "Create"
 113     assert object.data["type"] == "Note"
 114     assert object.data["actor"] == "https://mastodon.social/users/lambadalambda"
 115     assert object.data["summary"] == "technologic"
 116     assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"]
 117   end
 118
 119   test "handle incoming unlisted messages, put public into cc" do
 120     incoming = File.read!("test/fixtures/mastodon-note-unlisted.xml")
 121     {:ok, [activity]} = OStatus.handle_incoming(incoming)
 122     object = Object.normalize(activity.data["object"])
 123
 124     refute "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"]
 125     assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["cc"]
 126     refute "https://www.w3.org/ns/activitystreams#Public" in object.data["to"]
 127     assert "https://www.w3.org/ns/activitystreams#Public" in object.data["cc"]
 128   end
 129
 130   test "handle incoming retweets - Mastodon, with CW" do
 131     incoming = File.read!("test/fixtures/cw_retweet.xml")
 132     {:ok, [[_activity, retweeted_activity]]} = OStatus.handle_incoming(incoming)
 133     retweeted_object = Object.normalize(retweeted_activity.data["object"])
 134
 135     assert retweeted_object.data["summary"] == "Hey."
 136   end
 137
 138   test "handle incoming notes - GS, subscription, reply" do
 139     incoming = File.read!("test/fixtures/ostatus_incoming_reply.xml")
 140     {:ok, [activity]} = OStatus.handle_incoming(incoming)
 141     object = Object.normalize(activity.data["object"])
 142
 143     assert activity.data["type"] == "Create"
 144     assert object.data["type"] == "Note"
 145     assert object.data["actor"] == "https://social.heldscal.la/user/23211"
 146
 147     assert object.data["content"] ==
 148              "@<a href=\"https://gs.archae.me/user/4687\" class=\"h-card u-url p-nickname mention\" title=\"shpbot\">shpbot</a> why not indeed."
 149
 150     assert object.data["inReplyTo"] ==
 151              "tag:gs.archae.me,2017-04-30:noticeId=778260:objectType=note"
 152
 153     assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"]
 154   end
 155
 156   test "handle incoming retweets - GS, subscription" do
 157     incoming = File.read!("test/fixtures/share-gs.xml")
 158     {:ok, [[activity, retweeted_activity]]} = OStatus.handle_incoming(incoming)
 159
 160     assert activity.data["type"] == "Announce"
 161     assert activity.data["actor"] == "https://social.heldscal.la/user/23211"
 162     assert activity.data["object"] == retweeted_activity.data["object"]
 163     assert "https://pleroma.soykaf.com/users/lain" in activity.data["to"]
 164     refute activity.local
 165
 166     retweeted_activity = Activity.get_by_id(retweeted_activity.id)
 167     retweeted_object = Object.normalize(retweeted_activity.data["object"])
 168     assert retweeted_activity.data["type"] == "Create"
 169     assert retweeted_activity.data["actor"] == "https://pleroma.soykaf.com/users/lain"
 170     refute retweeted_activity.local
 171     assert retweeted_object.data["announcement_count"] == 1
 172     assert String.contains?(retweeted_object.data["content"], "mastodon")
 173     refute String.contains?(retweeted_object.data["content"], "Test account")
 174   end
 175
 176   test "handle incoming retweets - GS, subscription - local message" do
 177     incoming = File.read!("test/fixtures/share-gs-local.xml")
 178     note_activity = insert(:note_activity)
 179     user = User.get_cached_by_ap_id(note_activity.data["actor"])
 180
 181     incoming =
 182       incoming
 183       |> String.replace("LOCAL_ID", note_activity.data["object"]["id"])
 184       |> String.replace("LOCAL_USER", user.ap_id)
 185
 186     {:ok, [[activity, retweeted_activity]]} = OStatus.handle_incoming(incoming)
 187
 188     assert activity.data["type"] == "Announce"
 189     assert activity.data["actor"] == "https://social.heldscal.la/user/23211"
 190     assert activity.data["object"] == retweeted_activity.data["object"]["id"]
 191     assert user.ap_id in activity.data["to"]
 192     refute activity.local
 193
 194     retweeted_activity = Activity.get_by_id(retweeted_activity.id)
 195     assert note_activity.id == retweeted_activity.id
 196     assert retweeted_activity.data["type"] == "Create"
 197     assert retweeted_activity.data["actor"] == user.ap_id
 198     assert retweeted_activity.local
 199     assert retweeted_activity.data["object"]["announcement_count"] == 1
 200   end
 201
 202   test "handle incoming retweets - Mastodon, salmon" do
 203     incoming = File.read!("test/fixtures/share.xml")
 204     {:ok, [[activity, retweeted_activity]]} = OStatus.handle_incoming(incoming)
 205     retweeted_object = Object.normalize(retweeted_activity.data["object"])
 206
 207     assert activity.data["type"] == "Announce"
 208     assert activity.data["actor"] == "https://mastodon.social/users/lambadalambda"
 209     assert activity.data["object"] == retweeted_activity.data["object"]
 210
 211     assert activity.data["id"] ==
 212              "tag:mastodon.social,2017-05-03:objectId=4934452:objectType=Status"
 213
 214     refute activity.local
 215     assert retweeted_activity.data["type"] == "Create"
 216     assert retweeted_activity.data["actor"] == "https://pleroma.soykaf.com/users/lain"
 217     refute retweeted_activity.local
 218     refute String.contains?(retweeted_object.data["content"], "Test account")
 219   end
 220
 221   test "handle incoming favorites - GS, websub" do
 222     capture_log(fn ->
 223       incoming = File.read!("test/fixtures/favorite.xml")
 224       {:ok, [[activity, favorited_activity]]} = OStatus.handle_incoming(incoming)
 225
 226       assert activity.data["type"] == "Like"
 227       assert activity.data["actor"] == "https://social.heldscal.la/user/23211"
 228       assert activity.data["object"] == favorited_activity.data["object"]
 229
 230       assert activity.data["id"] ==
 231                "tag:social.heldscal.la,2017-05-05:fave:23211:comment:2061643:2017-05-05T09:12:50+00:00"
 232
 233       refute activity.local
 234       assert favorited_activity.data["type"] == "Create"
 235       assert favorited_activity.data["actor"] == "https://shitposter.club/user/1"
 236
 237       assert favorited_activity.data["object"] ==
 238                "tag:shitposter.club,2017-05-05:noticeId=2827873:objectType=comment"
 239
 240       refute favorited_activity.local
 241     end)
 242   end
 243
 244   test "handle conversation references" do
 245     incoming = File.read!("test/fixtures/mastodon_conversation.xml")
 246     {:ok, [activity]} = OStatus.handle_incoming(incoming)
 247
 248     assert activity.data["context"] ==
 249              "tag:mastodon.social,2017-08-28:objectId=7876885:objectType=Conversation"
 250   end
 251
 252   test "handle incoming favorites with locally available object - GS, websub" do
 253     note_activity = insert(:note_activity)
 254
 255     incoming =
 256       File.read!("test/fixtures/favorite_with_local_note.xml")
 257       |> String.replace("localid", note_activity.data["object"]["id"])
 258
 259     {:ok, [[activity, favorited_activity]]} = OStatus.handle_incoming(incoming)
 260
 261     assert activity.data["type"] == "Like"
 262     assert activity.data["actor"] == "https://social.heldscal.la/user/23211"
 263     assert activity.data["object"] == favorited_activity.data["object"]["id"]
 264     refute activity.local
 265     assert note_activity.id == favorited_activity.id
 266     assert favorited_activity.local
 267   end
 268
 269   test "handle incoming replies" do
 270     incoming = File.read!("test/fixtures/incoming_note_activity_answer.xml")
 271     {:ok, [activity]} = OStatus.handle_incoming(incoming)
 272     object = Object.normalize(activity.data["object"])
 273
 274     assert activity.data["type"] == "Create"
 275     assert object.data["type"] == "Note"
 276
 277     assert object.data["inReplyTo"] ==
 278              "http://pleroma.example.org:4000/objects/55bce8fc-b423-46b1-af71-3759ab4670bc"
 279
 280     assert "http://pleroma.example.org:4000/users/lain5" in activity.data["to"]
 281
 282     assert object.data["id"] == "tag:gs.example.org:4040,2017-04-25:noticeId=55:objectType=note"
 283
 284     assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"]
 285   end
 286
 287   test "handle incoming follows" do
 288     incoming = File.read!("test/fixtures/follow.xml")
 289     {:ok, [activity]} = OStatus.handle_incoming(incoming)
 290     assert activity.data["type"] == "Follow"
 291
 292     assert activity.data["id"] ==
 293              "tag:social.heldscal.la,2017-05-07:subscription:23211:person:44803:2017-05-07T09:54:48+00:00"
 294
 295     assert activity.data["actor"] == "https://social.heldscal.la/user/23211"
 296     assert activity.data["object"] == "https://pawoo.net/users/pekorino"
 297     refute activity.local
 298
 299     follower = User.get_by_ap_id(activity.data["actor"])
 300     followed = User.get_by_ap_id(activity.data["object"])
 301
 302     assert User.following?(follower, followed)
 303   end
 304
 305   test "handle incoming unfollows with existing follow" do
 306     incoming_follow = File.read!("test/fixtures/follow.xml")
 307     {:ok, [_activity]} = OStatus.handle_incoming(incoming_follow)
 308
 309     incoming = File.read!("test/fixtures/unfollow.xml")
 310     {:ok, [activity]} = OStatus.handle_incoming(incoming)
 311
 312     assert activity.data["type"] == "Undo"
 313
 314     assert activity.data["id"] ==
 315              "undo:tag:social.heldscal.la,2017-05-07:subscription:23211:person:44803:2017-05-07T09:54:48+00:00"
 316
 317     assert activity.data["actor"] == "https://social.heldscal.la/user/23211"
 318     assert is_map(activity.data["object"])
 319     assert activity.data["object"]["type"] == "Follow"
 320     assert activity.data["object"]["object"] == "https://pawoo.net/users/pekorino"
 321     refute activity.local
 322
 323     follower = User.get_by_ap_id(activity.data["actor"])
 324     followed = User.get_by_ap_id(activity.data["object"]["object"])
 325
 326     refute User.following?(follower, followed)
 327   end
 328
 329   test "it clears `unreachable` federation status of the sender" do
 330     incoming_reaction_xml = File.read!("test/fixtures/share-gs.xml")
 331     doc = XML.parse_document(incoming_reaction_xml)
 332     actor_uri = XML.string_from_xpath("//author/uri[1]", doc)
 333     reacted_to_author_uri = XML.string_from_xpath("//author/uri[2]", doc)
 334
 335     Instances.set_consistently_unreachable(actor_uri)
 336     Instances.set_consistently_unreachable(reacted_to_author_uri)
 337     refute Instances.reachable?(actor_uri)
 338     refute Instances.reachable?(reacted_to_author_uri)
 339
 340     {:ok, _} = OStatus.handle_incoming(incoming_reaction_xml)
 341     assert Instances.reachable?(actor_uri)
 342     refute Instances.reachable?(reacted_to_author_uri)
 343   end
 344
 345   describe "new remote user creation" do
 346     test "returns local users" do
 347       local_user = insert(:user)
 348       {:ok, user} = OStatus.find_or_make_user(local_user.ap_id)
 349
 350       assert user == local_user
 351     end
 352
 353     test "tries to use the information in poco fields" do
 354       uri = "https://social.heldscal.la/user/23211"
 355
 356       {:ok, user} = OStatus.find_or_make_user(uri)
 357
 358       user = Pleroma.User.get_by_id(user.id)
 359       assert user.name == "Constance Variable"
 360       assert user.nickname == "lambadalambda@social.heldscal.la"
 361       assert user.local == false
 362       assert user.info.uri == uri
 363       assert user.ap_id == uri
 364       assert user.bio == "Call me Deacon Blues."
 365       assert user.avatar["type"] == "Image"
 366
 367       {:ok, user_again} = OStatus.find_or_make_user(uri)
 368
 369       assert user == user_again
 370     end
 371
 372     test "find_or_make_user sets all the nessary input fields" do
 373       uri = "https://social.heldscal.la/user/23211"
 374       {:ok, user} = OStatus.find_or_make_user(uri)
 375
 376       assert user.info ==
 377                %Pleroma.User.Info{
 378                  id: user.info.id,
 379                  ap_enabled: false,
 380                  background: %{},
 381                  banner: %{},
 382                  blocks: [],
 383                  deactivated: false,
 384                  default_scope: "public",
 385                  domain_blocks: [],
 386                  follower_count: 0,
 387                  is_admin: false,
 388                  is_moderator: false,
 389                  keys: nil,
 390                  locked: false,
 391                  no_rich_text: false,
 392                  note_count: 0,
 393                  settings: nil,
 394                  source_data: %{},
 395                  hub: "https://social.heldscal.la/main/push/hub",
 396                  magic_key:
 397                    "RSA.uzg6r1peZU0vXGADWxGJ0PE34WvmhjUmydbX5YYdOiXfODVLwCMi1umGoqUDm-mRu4vNEdFBVJU1CpFA7dKzWgIsqsa501i2XqElmEveXRLvNRWFB6nG03Q5OUY2as8eE54BJm0p20GkMfIJGwP6TSFb-ICp3QjzbatuSPJ6xCE=.AQAB",
 398                  salmon: "https://social.heldscal.la/main/salmon/user/23211",
 399                  topic: "https://social.heldscal.la/api/statuses/user_timeline/23211.atom",
 400                  uri: "https://social.heldscal.la/user/23211"
 401                }
 402     end
 403
 404     test "find_make_or_update_user takes an author element and returns an updated user" do
 405       uri = "https://social.heldscal.la/user/23211"
 406
 407       {:ok, user} = OStatus.find_or_make_user(uri)
 408       old_name = user.name
 409       old_bio = user.bio
 410       change = Ecto.Changeset.change(user, %{avatar: nil, bio: nil, old_name: nil})
 411
 412       {:ok, user} = Repo.update(change)
 413       refute user.avatar
 414
 415       doc = XML.parse_document(File.read!("test/fixtures/23211.atom"))
 416       [author] = :xmerl_xpath.string('//author[1]', doc)
 417       {:ok, user} = OStatus.find_make_or_update_user(author)
 418       assert user.avatar["type"] == "Image"
 419       assert user.name == old_name
 420       assert user.bio == old_bio
 421
 422       {:ok, user_again} = OStatus.find_make_or_update_user(author)
 423       assert user_again == user
 424     end
 425   end
 426
 427   describe "gathering user info from a user id" do
 428     test "it returns user info in a hash" do
 429       user = "shp@social.heldscal.la"
 430
 431       # TODO: make test local
 432       {:ok, data} = OStatus.gather_user_info(user)
 433
 434       expected = %{
 435         "hub" => "https://social.heldscal.la/main/push/hub",
 436         "magic_key" =>
 437           "RSA.wQ3i9UA0qmAxZ0WTIp4a-waZn_17Ez1pEEmqmqoooRsG1_BvpmOvLN0G2tEcWWxl2KOtdQMCiPptmQObeZeuj48mdsDZ4ArQinexY2hCCTcbV8Xpswpkb8K05RcKipdg07pnI7tAgQ0VWSZDImncL6YUGlG5YN8b5TjGOwk2VG8=.AQAB",
 438         "name" => "shp",
 439         "nickname" => "shp",
 440         "salmon" => "https://social.heldscal.la/main/salmon/user/29191",
 441         "subject" => "acct:shp@social.heldscal.la",
 442         "topic" => "https://social.heldscal.la/api/statuses/user_timeline/29191.atom",
 443         "uri" => "https://social.heldscal.la/user/29191",
 444         "host" => "social.heldscal.la",
 445         "fqn" => user,
 446         "bio" => "cofe",
 447         "avatar" => %{
 448           "type" => "Image",
 449           "url" => [
 450             %{
 451               "href" => "https://social.heldscal.la/avatar/29191-original-20170421154949.jpeg",
 452               "mediaType" => "image/jpeg",
 453               "type" => "Link"
 454             }
 455           ]
 456         },
 457         "subscribe_address" => "https://social.heldscal.la/main/ostatussub?profile={uri}",
 458         "ap_id" => nil
 459       }
 460
 461       assert data == expected
 462     end
 463
 464     test "it works with the uri" do
 465       user = "https://social.heldscal.la/user/29191"
 466
 467       # TODO: make test local
 468       {:ok, data} = OStatus.gather_user_info(user)
 469
 470       expected = %{
 471         "hub" => "https://social.heldscal.la/main/push/hub",
 472         "magic_key" =>
 473           "RSA.wQ3i9UA0qmAxZ0WTIp4a-waZn_17Ez1pEEmqmqoooRsG1_BvpmOvLN0G2tEcWWxl2KOtdQMCiPptmQObeZeuj48mdsDZ4ArQinexY2hCCTcbV8Xpswpkb8K05RcKipdg07pnI7tAgQ0VWSZDImncL6YUGlG5YN8b5TjGOwk2VG8=.AQAB",
 474         "name" => "shp",
 475         "nickname" => "shp",
 476         "salmon" => "https://social.heldscal.la/main/salmon/user/29191",
 477         "subject" => "https://social.heldscal.la/user/29191",
 478         "topic" => "https://social.heldscal.la/api/statuses/user_timeline/29191.atom",
 479         "uri" => "https://social.heldscal.la/user/29191",
 480         "host" => "social.heldscal.la",
 481         "fqn" => user,
 482         "bio" => "cofe",
 483         "avatar" => %{
 484           "type" => "Image",
 485           "url" => [
 486             %{
 487               "href" => "https://social.heldscal.la/avatar/29191-original-20170421154949.jpeg",
 488               "mediaType" => "image/jpeg",
 489               "type" => "Link"
 490             }
 491           ]
 492         },
 493         "subscribe_address" => "https://social.heldscal.la/main/ostatussub?profile={uri}",
 494         "ap_id" => nil
 495       }
 496
 497       assert data == expected
 498     end
 499   end
 500
 501   describe "fetching a status by it's HTML url" do
 502     test "it builds a missing status from an html url" do
 503       capture_log(fn ->
 504         url = "https://shitposter.club/notice/2827873"
 505         {:ok, [activity]} = OStatus.fetch_activity_from_url(url)
 506
 507         assert activity.data["actor"] == "https://shitposter.club/user/1"
 508
 509         assert activity.data["object"] ==
 510                  "tag:shitposter.club,2017-05-05:noticeId=2827873:objectType=comment"
 511       end)
 512     end
 513
 514     test "it works for atom notes, too" do
 515       url = "https://social.sakamoto.gq/objects/0ccc1a2c-66b0-4305-b23a-7f7f2b040056"
 516       {:ok, [activity]} = OStatus.fetch_activity_from_url(url)
 517       assert activity.data["actor"] == "https://social.sakamoto.gq/users/eal"
 518       assert activity.data["object"] == url
 519     end
 520   end
 521
 522   test "it doesn't add nil in the to field" do
 523     incoming = File.read!("test/fixtures/nil_mention_entry.xml")
 524     {:ok, [activity]} = OStatus.handle_incoming(incoming)
 525
 526     assert activity.data["to"] == [
 527              "http://localhost:4001/users/atarifrosch@social.stopwatchingus-heidelberg.de/followers",
 528              "https://www.w3.org/ns/activitystreams#Public"
 529            ]
 530   end
 531
 532   describe "is_representable?" do
 533     test "Note objects are representable" do
 534       note_activity = insert(:note_activity)
 535
 536       assert OStatus.is_representable?(note_activity)
 537     end
 538
 539     test "Article objects are not representable" do
 540       note_activity = insert(:note_activity)
 541
 542       note_object = Object.normalize(note_activity.data["object"])
 543
 544       note_data =
 545         note_object.data
 546         |> Map.put("type", "Article")
 547
 548       Cachex.clear(:object_cache)
 549
 550       cs = Object.change(note_object, %{data: note_data})
 551       {:ok, _article_object} = Repo.update(cs)
 552
 553       # the underlying object is now an Article instead of a note, so this should fail
 554       refute OStatus.is_representable?(note_activity)
 555     end
 556   end
 557 end