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diff --git a/test/web/activity_pub/transmogrifier/question_handling_test.exs b/test/web/activity_pub/transmogrifier/question_handling_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.ActivityPub.Transmogrifier.QuestionHandlingTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Activity
+  alias Pleroma.Object
+  alias Pleroma.Web.ActivityPub.Transmogrifier
+  alias Pleroma.Web.CommonAPI
+
+  import Pleroma.Factory
+
+  setup_all do
+    Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
+    :ok
+  end
+
+  test "Mastodon Question activity" do
+    data = File.read!("test/fixtures/mastodon-question-activity.json") |> Poison.decode!()
+
+    {:ok, %Activity{local: false} = activity} = Transmogrifier.handle_incoming(data)
+
+    object = Object.normalize(activity, false)
+
+    assert object.data["url"] == "https://mastodon.sdf.org/@rinpatch/102070944809637304"
+
+    assert object.data["closed"] == "2019-05-11T09:03:36Z"
+
+    assert object.data["context"] == activity.data["context"]
+
+    assert object.data["context"] ==
+             "tag:mastodon.sdf.org,2019-05-10:objectId=15095122:objectType=Conversation"
+
+    assert object.data["context_id"]
+
+    assert object.data["anyOf"] == []
+
+    assert Enum.sort(object.data["oneOf"]) ==
+             Enum.sort([
+               %{
+                 "name" => "25 char limit is dumb",
+                 "replies" => %{"totalItems" => 0, "type" => "Collection"},
+                 "type" => "Note"
+               },
+               %{
+                 "name" => "Dunno",
+                 "replies" => %{"totalItems" => 0, "type" => "Collection"},
+                 "type" => "Note"
+               },
+               %{
+                 "name" => "Everyone knows that!",
+                 "replies" => %{"totalItems" => 1, "type" => "Collection"},
+                 "type" => "Note"
+               },
+               %{
+                 "name" => "I can't even fit a funny",
+                 "replies" => %{"totalItems" => 1, "type" => "Collection"},
+                 "type" => "Note"
+               }
+             ])
+
+    user = insert(:user)
+
+    {:ok, reply_activity} = CommonAPI.post(user, %{status: "hewwo", in_reply_to_id: activity.id})
+
+    reply_object = Object.normalize(reply_activity, false)
+
+    assert reply_object.data["context"] == object.data["context"]
+    assert reply_object.data["context_id"] == object.data["context_id"]
+  end
+
+  test "Mastodon Question activity with HTML tags in plaintext" do
+    options = [
+      %{
+        "type" => "Note",
+        "name" => "<input type=\"date\">",
+        "replies" => %{"totalItems" => 0, "type" => "Collection"}
+      },
+      %{
+        "type" => "Note",
+        "name" => "<input type=\"date\"/>",
+        "replies" => %{"totalItems" => 0, "type" => "Collection"}
+      },
+      %{
+        "type" => "Note",
+        "name" => "<input type=\"date\" />",
+        "replies" => %{"totalItems" => 1, "type" => "Collection"}
+      },
+      %{
+        "type" => "Note",
+        "name" => "<input type=\"date\"></input>",
+        "replies" => %{"totalItems" => 1, "type" => "Collection"}
+      }
+    ]
+
+    data =
+      File.read!("test/fixtures/mastodon-question-activity.json")
+      |> Poison.decode!()
+      |> Kernel.put_in(["object", "oneOf"], options)
+
+    {:ok, %Activity{local: false} = activity} = Transmogrifier.handle_incoming(data)
+    object = Object.normalize(activity, false)
+
+    assert Enum.sort(object.data["oneOf"]) == Enum.sort(options)
+  end
+
+  test "Mastodon Question activity with custom emojis" do
+    options = [
+      %{
+        "type" => "Note",
+        "name" => ":blobcat:",
+        "replies" => %{"totalItems" => 0, "type" => "Collection"}
+      },
+      %{
+        "type" => "Note",
+        "name" => ":blobfox:",
+        "replies" => %{"totalItems" => 0, "type" => "Collection"}
+      }
+    ]
+
+    tag = [
+      %{
+        "icon" => %{
+          "type" => "Image",
+          "url" => "https://blob.cat/emoji/custom/blobcats/blobcat.png"
+        },
+        "id" => "https://blob.cat/emoji/custom/blobcats/blobcat.png",
+        "name" => ":blobcat:",
+        "type" => "Emoji",
+        "updated" => "1970-01-01T00:00:00Z"
+      },
+      %{
+        "icon" => %{"type" => "Image", "url" => "https://blob.cat/emoji/blobfox/blobfox.png"},
+        "id" => "https://blob.cat/emoji/blobfox/blobfox.png",
+        "name" => ":blobfox:",
+        "type" => "Emoji",
+        "updated" => "1970-01-01T00:00:00Z"
+      }
+    ]
+
+    data =
+      File.read!("test/fixtures/mastodon-question-activity.json")
+      |> Poison.decode!()
+      |> Kernel.put_in(["object", "oneOf"], options)
+      |> Kernel.put_in(["object", "tag"], tag)
+
+    {:ok, %Activity{local: false} = activity} = Transmogrifier.handle_incoming(data)
+    object = Object.normalize(activity, false)
+
+    assert object.data["oneOf"] == options
+
+    assert object.data["emoji"] == %{
+             "blobcat" => "https://blob.cat/emoji/custom/blobcats/blobcat.png",
+             "blobfox" => "https://blob.cat/emoji/blobfox/blobfox.png"
+           }
+  end
+
+  test "returns an error if received a second time" do
+    data = File.read!("test/fixtures/mastodon-question-activity.json") |> Poison.decode!()
+
+    assert {:ok, %Activity{local: false} = activity} = Transmogrifier.handle_incoming(data)
+
+    assert {:error, {:validate_object, {:error, _}}} = Transmogrifier.handle_incoming(data)
+  end
+
+  test "accepts a Question with no content" do
+    data =
+      File.read!("test/fixtures/mastodon-question-activity.json")
+      |> Poison.decode!()
+      |> Kernel.put_in(["object", "content"], "")
+
+    assert {:ok, %Activity{local: false}} = Transmogrifier.handle_incoming(data)
+  end
+end