Added tests for video download worker

lib/pinchflat/workers/video_download_worker.ex

@@ -11,7 +11,9 @@ defmodule Pinchflat.Workers.VideoDownloadWorker do
 
   @impl Oban.Worker
   @doc """
-  TODO: test
+  For a given media item, download the video and save the metadata.
+
+  Returns {:ok, %MediaItem{}} | {:error, any, ...any}
   """
   def perform(%Oban.Job{args: %{"id" => media_item_id}}) do
     media_item = Media.get_media_item!(media_item_id)

test/pinchflat/workers/video_download_worker_test.exs

@@ -0,0 +1,42 @@
+defmodule Pinchflat.Workers.VideoDownloadWorkerTest do
+  use Pinchflat.DataCase
+
+  import Mox
+  import Pinchflat.MediaFixtures
+
+  alias Pinchflat.Workers.VideoDownloadWorker
+
+  setup :verify_on_exit!
+
+  setup do
+    media_item =
+      Repo.preload(
+        media_item_fixture(%{video_filepath: nil}),
+        [:metadata, channel: :media_profile]
+      )
+
+    {:ok, %{media_item: media_item}}
+  end
+
+  describe "perform/1" do
+    test "it saves attributes to the media_item", %{media_item: media_item} do
+      expect(YtDlpRunnerMock, :run, fn _url, _opts, _ot ->
+        {:ok, render_metadata(:media_metadata)}
+      end)
+
+      assert media_item.video_filepath == nil
+      perform_job(VideoDownloadWorker, %{id: media_item.id})
+      assert Repo.reload(media_item).video_filepath != nil
+    end
+
+    test "it saves the metadata to the media_item", %{media_item: media_item} do
+      expect(YtDlpRunnerMock, :run, fn _url, _opts, _ot ->
+        {:ok, render_metadata(:media_metadata)}
+      end)
+
+      assert media_item.metadata == nil
+      perform_job(VideoDownloadWorker, %{id: media_item.id})
+      assert Repo.reload(media_item).metadata != nil
+    end
+  end
+end