Improve test coverage

Files Created (8 files, 54 new tests)

  Fixtures

  1. test/support/fixtures/music_library/record_sets.ex — record_set/1
and record_set_with_records/2 helpers
  2. test/support/fixtures/music_library/online_store_templates.ex —
online_store_template/1 helper

  Context Tests

  3. test/music_library/record_sets_test.exs — 20 tests covering search,
count, CRUD, add/remove/move records
  4. test/music_library/online_store_templates_test.exs — 8 tests
covering list, CRUD, URL generation, validation
  5. test/music_library/search_test.exs — 5 tests covering universal
search and search counts
  6. test/music_library/notes_test.exs — 4 tests covering get, create,
update

  LiveView Tests

  7. test/music_library_web/live/record_set_live/index_test.exs — 11
tests covering listing, empty state, search, ordering,
create/edit/delete sets, remove records, reorder records
  8.
test/music_library_web/live/online_store_template_live/index_test.exs —
6 tests covering listing, create/edit/delete, toggle enabled

  Results

  - 297 tests, 0 failures (up from 243 — 54 new tests added)
  - All existing tests continue to pass

There's a remaining gettext warning that needs to be investigated

test/music_library/notes_test.exs

@@ -0,0 +1,56 @@
+defmodule MusicLibrary.NotesTest do
+  use MusicLibrary.DataCase
+
+  alias MusicLibrary.Notes
+  alias MusicLibrary.Notes.Note
+
+  @musicbrainz_id Ecto.UUID.generate()
+
+  describe "get_note/2" do
+    test "returns nil when no note exists" do
+      assert Notes.get_note(:record, Ecto.UUID.generate()) == nil
+    end
+
+    test "returns note for record" do
+      {:ok, note} =
+        Notes.create_note(%Note{}, %{
+          entity: :record,
+          musicbrainz_id: @musicbrainz_id,
+          content: "Great album"
+        })
+
+      found = Notes.get_note(:record, @musicbrainz_id)
+      assert found.id == note.id
+      assert found.content == "Great album"
+    end
+  end
+
+  describe "create_note/2" do
+    test "creates a note" do
+      assert {:ok, note} =
+               Notes.create_note(%Note{}, %{
+                 entity: :artist,
+                 musicbrainz_id: @musicbrainz_id,
+                 content: "Fantastic artist"
+               })
+
+      assert note.entity == :artist
+      assert note.content == "Fantastic artist"
+      assert note.musicbrainz_id == @musicbrainz_id
+    end
+  end
+
+  describe "update_note/2" do
+    test "updates note content" do
+      {:ok, note} =
+        Notes.create_note(%Note{}, %{
+          entity: :record,
+          musicbrainz_id: @musicbrainz_id,
+          content: "Original"
+        })
+
+      assert {:ok, updated} = Notes.update_note(note, %{content: "Updated content"})
+      assert updated.content == "Updated content"
+    end
+  end
+end

test/music_library/online_store_templates_test.exs

@@ -0,0 +1,95 @@
+defmodule MusicLibrary.OnlineStoreTemplatesTest do
+  use MusicLibrary.DataCase
+
+  import MusicLibrary.Fixtures.OnlineStoreTemplates
+  import MusicLibrary.Fixtures.Records
+
+  alias MusicLibrary.OnlineStoreTemplates
+
+  describe "list_templates/0 and list_enabled_templates/0" do
+    test "lists all templates" do
+      t1 = online_store_template(%{name: "Amazon", enabled: true})
+      t2 = online_store_template(%{name: "Bandcamp", enabled: false})
+
+      all = OnlineStoreTemplates.list_templates()
+      ids = Enum.map(all, & &1.id)
+      assert t1.id in ids
+      assert t2.id in ids
+    end
+
+    test "lists only enabled templates" do
+      t1 = online_store_template(%{name: "Amazon", enabled: true})
+      t2 = online_store_template(%{name: "Bandcamp", enabled: false})
+
+      enabled = OnlineStoreTemplates.list_enabled_templates()
+      ids = Enum.map(enabled, & &1.id)
+      assert t1.id in ids
+      refute t2.id in ids
+    end
+  end
+
+  describe "create_template/1" do
+    test "creates with valid attrs" do
+      assert {:ok, template} =
+               OnlineStoreTemplates.create_template(%{
+                 name: "Test Store",
+                 url_template: "https://example.com/search?q={artist}"
+               })
+
+      assert template.name == "Test Store"
+      assert template.enabled == true
+    end
+
+    test "returns error with invalid attrs" do
+      assert {:error, changeset} = OnlineStoreTemplates.create_template(%{name: nil})
+      assert %{name: ["can't be blank"]} = errors_on(changeset)
+    end
+
+    test "returns error with invalid URL template" do
+      assert {:error, changeset} =
+               OnlineStoreTemplates.create_template(%{
+                 name: "Bad",
+                 url_template: "not-a-url"
+               })
+
+      assert %{url_template: ["must be a valid HTTP or HTTPS URL"]} = errors_on(changeset)
+    end
+  end
+
+  describe "update_template/2" do
+    test "updates with valid attrs" do
+      template = online_store_template()
+
+      assert {:ok, updated} =
+               OnlineStoreTemplates.update_template(template, %{name: "Updated Name"})
+
+      assert updated.name == "Updated Name"
+    end
+  end
+
+  describe "delete_template/1" do
+    test "deletes the template" do
+      template = online_store_template()
+      assert {:ok, _} = OnlineStoreTemplates.delete_template(template)
+      assert_raise Ecto.NoResultsError, fn -> OnlineStoreTemplates.get_template!(template.id) end
+    end
+  end
+
+  describe "generate_url/2" do
+    test "generates URL from template and record" do
+      template =
+        online_store_template(%{
+          url_template: "https://example.com/search?q={artist}+{title}+{format}"
+        })
+
+      rec = record_with_artist("Pink Floyd", %{title: "The Wall", format: :vinyl})
+
+      url = OnlineStoreTemplates.generate_url(template, rec)
+
+      assert url =~ "Pink+Floyd"
+      assert url =~ "The+Wall"
+      assert url =~ "vinyl"
+      assert String.starts_with?(url, "https://example.com/search?q=")
+    end
+  end
+end

test/music_library/record_sets_test.exs

@@ -0,0 +1,210 @@
+defmodule MusicLibrary.RecordSetsTest do
+  use MusicLibrary.DataCase
+
+  import MusicLibrary.Fixtures.Records
+  import MusicLibrary.Fixtures.RecordSets
+
+  alias MusicLibrary.RecordSets
+
+  describe "search_record_sets/2" do
+    test "returns sets matching by name" do
+      set = record_set(%{name: "Road Trip Mix"})
+      _other = record_set(%{name: "Unrelated"})
+
+      results = RecordSets.search_record_sets("Road Trip")
+      assert Enum.any?(results, &(&1.id == set.id))
+      refute Enum.any?(results, &(&1.name == "Unrelated"))
+    end
+
+    test "returns sets matching by description" do
+      set = record_set(%{name: "My Set", description: "Great progressive rock"})
+      _other = record_set(%{name: "Other", description: "Nothing here"})
+
+      results = RecordSets.search_record_sets("progressive")
+      assert Enum.any?(results, &(&1.id == set.id))
+    end
+
+    test "returns sets matching by record title" do
+      {set, [rec | _]} = record_set_with_records(1, %{name: "Favorites"})
+
+      results = RecordSets.search_record_sets(rec.title)
+      assert Enum.any?(results, &(&1.id == set.id))
+    end
+
+    test "returns sets matching by artist name" do
+      rec = record_with_artist("Marillion")
+      set = record_set(%{name: "Prog"})
+      {:ok, _} = RecordSets.add_record_to_set(set, rec.id)
+
+      results = RecordSets.search_record_sets("Marillion")
+      assert Enum.any?(results, &(&1.id == set.id))
+    end
+
+    test "returns all sets when query is empty" do
+      set1 = record_set(%{name: "First"})
+      set2 = record_set(%{name: "Second"})
+
+      results = RecordSets.search_record_sets("")
+      ids = Enum.map(results, & &1.id)
+      assert set1.id in ids
+      assert set2.id in ids
+    end
+
+    test "respects offset and limit" do
+      for i <- 1..5, do: record_set(%{name: "Set #{i}"})
+
+      results = RecordSets.search_record_sets("", limit: 2)
+      assert length(results) == 2
+
+      all = RecordSets.search_record_sets("")
+      offset_results = RecordSets.search_record_sets("", offset: 2, limit: 2)
+
+      refute Enum.at(all, 0).id == Enum.at(offset_results, 0).id
+    end
+
+    test "orders by updated_at desc by default" do
+      s1 = record_set(%{name: "Alpha"})
+      s2 = record_set(%{name: "Beta"})
+
+      # Manually set timestamps to ensure deterministic ordering
+      past = ~U[2024-01-01 00:00:00Z]
+      future = ~U[2025-01-01 00:00:00Z]
+      Repo.update_all(from(rs in "record_sets", where: rs.id == ^s1.id), set: [updated_at: past])
+
+      Repo.update_all(from(rs in "record_sets", where: rs.id == ^s2.id),
+        set: [updated_at: future]
+      )
+
+      results = RecordSets.search_record_sets("")
+      ids = Enum.map(results, & &1.id)
+
+      # s2 has newer updated_at so it should be first
+      assert Enum.find_index(ids, &(&1 == s2.id)) < Enum.find_index(ids, &(&1 == s1.id))
+    end
+
+    test "orders alphabetically when order: :alphabetical" do
+      record_set(%{name: "Zulu"})
+      record_set(%{name: "Alpha"})
+
+      results = RecordSets.search_record_sets("", order: :alphabetical)
+      names = Enum.map(results, & &1.name)
+
+      assert Enum.find_index(names, &(&1 == "Alpha")) < Enum.find_index(names, &(&1 == "Zulu"))
+    end
+  end
+
+  describe "count_record_sets/0 and count_record_sets/1" do
+    test "returns total count" do
+      assert RecordSets.count_record_sets() == 0
+
+      record_set(%{name: "One"})
+      record_set(%{name: "Two"})
+
+      assert RecordSets.count_record_sets() == 2
+    end
+
+    test "returns count matching query" do
+      record_set(%{name: "Road Trip"})
+      record_set(%{name: "Sunday Morning"})
+
+      assert RecordSets.count_record_sets("Road") == 1
+      assert RecordSets.count_record_sets("") == 2
+    end
+  end
+
+  describe "create_record_set/1" do
+    test "creates with valid attrs" do
+      assert {:ok, set} = RecordSets.create_record_set(%{name: "My Set"})
+      assert set.name == "My Set"
+      assert set.items == []
+    end
+
+    test "returns error changeset with invalid attrs" do
+      assert {:error, changeset} = RecordSets.create_record_set(%{name: nil})
+      assert %{name: ["can't be blank"]} = errors_on(changeset)
+    end
+  end
+
+  describe "update_record_set/2" do
+    test "updates with valid attrs" do
+      set = record_set(%{name: "Old Name"})
+      assert {:ok, updated} = RecordSets.update_record_set(set, %{name: "New Name"})
+      assert updated.name == "New Name"
+    end
+  end
+
+  describe "delete_record_set/1" do
+    test "deletes the record set" do
+      set = record_set()
+      assert {:ok, _} = RecordSets.delete_record_set(set)
+      assert_raise Ecto.NoResultsError, fn -> RecordSets.get_record_set!(set.id) end
+    end
+  end
+
+  describe "add_record_to_set/2" do
+    test "adds a record to the set" do
+      set = record_set()
+      rec = record()
+
+      assert {:ok, updated} = RecordSets.add_record_to_set(set, rec.id)
+      assert length(updated.items) == 1
+      assert hd(updated.items).record.id == rec.id
+    end
+
+    test "returns error on duplicate" do
+      set = record_set()
+      rec = record()
+
+      {:ok, _} = RecordSets.add_record_to_set(set, rec.id)
+      assert {:error, _changeset} = RecordSets.add_record_to_set(set, rec.id)
+    end
+  end
+
+  describe "remove_record_from_set/2" do
+    test "removes a record and recompacts positions" do
+      {set, [r1, r2, r3]} = record_set_with_records(3)
+
+      {:ok, updated} = RecordSets.remove_record_from_set(set, r2.id)
+
+      record_ids = Enum.map(updated.items, & &1.record.id)
+      assert r1.id in record_ids
+      assert r3.id in record_ids
+      refute r2.id in record_ids
+
+      positions = Enum.map(updated.items, & &1.position)
+      assert positions == [0, 1]
+    end
+  end
+
+  describe "move_record_in_set/3" do
+    test "moves a record up" do
+      {set, [r1, r2 | _]} = record_set_with_records(3)
+
+      {:ok, updated} = RecordSets.move_record_in_set(set, r2.id, :up)
+
+      ids_in_order = Enum.map(updated.items, & &1.record.id)
+      assert Enum.at(ids_in_order, 0) == r2.id
+      assert Enum.at(ids_in_order, 1) == r1.id
+    end
+
+    test "moves a record down" do
+      {set, [r1, r2 | _]} = record_set_with_records(3)
+
+      {:ok, updated} = RecordSets.move_record_in_set(set, r1.id, :down)
+
+      ids_in_order = Enum.map(updated.items, & &1.record.id)
+      assert Enum.at(ids_in_order, 0) == r2.id
+      assert Enum.at(ids_in_order, 1) == r1.id
+    end
+
+    test "no-ops at boundaries" do
+      {set, [r1, _, r3]} = record_set_with_records(3)
+
+      {:ok, moved_up} = RecordSets.move_record_in_set(set, r1.id, :up)
+      assert Enum.map(moved_up.items, & &1.record.id) == Enum.map(set.items, & &1.record.id)
+
+      {:ok, moved_down} = RecordSets.move_record_in_set(set, r3.id, :down)
+      assert Enum.map(moved_down.items, & &1.record.id) == Enum.map(set.items, & &1.record.id)
+    end
+  end
+end

test/music_library/search_test.exs

@@ -0,0 +1,77 @@
+defmodule MusicLibrary.SearchTest do
+  use MusicLibrary.DataCase
+
+  import MusicLibrary.Fixtures.Records
+
+  alias MusicLibrary.Search
+
+  defp create_records(_) do
+    collected =
+      record_with_artist("Marillion", %{title: "Brave", purchased_at: DateTime.utc_now()})
+
+    wishlisted =
+      record_with_artist("Marillion", %{title: "Afraid of Sunlight", purchased_at: nil})
+
+    # Create artist info so search_artists can find artists
+    [artist] = collected.artists
+    artist_info(artist.musicbrainz_id)
+
+    %{collected: collected, wishlisted: wishlisted}
+  end
+
+  describe "universal_search/2" do
+    setup [:create_records]
+
+    test "returns collection, wishlist, and artist results", %{
+      collected: collected,
+      wishlisted: wishlisted
+    } do
+      results = Search.universal_search("Marillion")
+
+      collection_ids = Enum.map(results.collection, & &1.id)
+      assert collected.id in collection_ids
+
+      wishlist_ids = Enum.map(results.wishlist, & &1.id)
+      assert wishlisted.id in wishlist_ids
+
+      artist_names = Enum.map(results.artists, fn a -> a.artist.name end)
+      assert "Marillion" in artist_names
+    end
+
+    test "returns empty results for no matches" do
+      results = Search.universal_search("zzz_nonexistent_zzz")
+
+      assert results.collection == []
+      assert results.wishlist == []
+      assert results.artists == []
+    end
+
+    test "respects limit", %{collected: _collected} do
+      results = Search.universal_search("Marillion", limit: 1)
+
+      assert length(results.collection) <= 1
+      assert length(results.wishlist) <= 1
+      assert length(results.artists) <= 1
+    end
+  end
+
+  describe "search_counts/1" do
+    setup [:create_records]
+
+    test "returns counts per category" do
+      counts = Search.search_counts("Marillion")
+
+      assert counts.collection_count >= 1
+      assert counts.wishlist_count >= 1
+      assert counts.artists_count >= 1
+    end
+
+    test "returns zero counts for no matches" do
+      counts = Search.search_counts("zzz_nonexistent_zzz")
+
+      assert counts.collection_count == 0
+      assert counts.wishlist_count == 0
+      assert counts.artists_count == 0
+    end
+  end
+end

test/music_library_web/live/online_store_template_live/index_test.exs

@@ -0,0 +1,108 @@
+defmodule MusicLibraryWeb.OnlineStoreTemplateLive.IndexTest do
+  use MusicLibraryWeb.ConnCase
+
+  import MusicLibrary.Fixtures.OnlineStoreTemplates
+  import Phoenix.LiveViewTest
+
+  alias MusicLibrary.OnlineStoreTemplates
+
+  describe "Index" do
+    test "lists all templates", %{conn: conn} do
+      online_store_template(%{name: "Amazon UK"})
+      online_store_template(%{name: "Bandcamp"})
+
+      conn
+      |> visit(~p"/online-store-templates")
+      |> assert_has("h1", text: "Online Store Templates")
+      |> assert_has("p", text: "Amazon UK")
+      |> assert_has("p", text: "Bandcamp")
+    end
+  end
+
+  describe "Create template" do
+    test "creates with valid data", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/online-store-templates/new")
+
+      view
+      |> form("#online_store_template-form",
+        online_store_template: %{
+          name: "New Store",
+          url_template: "https://store.example.com/search?q={artist}+{title}"
+        }
+      )
+      |> render_submit()
+
+      templates = OnlineStoreTemplates.list_templates()
+      assert Enum.any?(templates, &(&1.name == "New Store"))
+    end
+
+    test "shows validation errors", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/online-store-templates/new")
+
+      html =
+        view
+        |> form("#online_store_template-form",
+          online_store_template: %{name: "", url_template: ""}
+        )
+        |> render_change()
+
+      assert html =~ "can't be blank"
+    end
+  end
+
+  describe "Edit template" do
+    test "updates with valid data", %{conn: conn} do
+      template = online_store_template(%{name: "Old Name"})
+
+      {:ok, view, _html} = live(conn, ~p"/online-store-templates/#{template}/edit")
+
+      view
+      |> form("#online_store_template-form",
+        online_store_template: %{name: "Updated Name"}
+      )
+      |> render_submit()
+
+      updated = OnlineStoreTemplates.get_template!(template.id)
+      assert updated.name == "Updated Name"
+    end
+  end
+
+  describe "Delete template" do
+    test "deletes from listing", %{conn: conn} do
+      template = online_store_template(%{name: "To Delete"})
+
+      {:ok, view, _html} = live(conn, ~p"/online-store-templates")
+
+      view
+      |> element("button[phx-click='delete'][phx-value-id='#{template.id}']")
+      |> render_click()
+
+      refute has_element?(view, "p", "To Delete")
+      assert_raise Ecto.NoResultsError, fn -> OnlineStoreTemplates.get_template!(template.id) end
+    end
+  end
+
+  describe "Toggle enabled" do
+    test "toggles template enabled status", %{conn: conn} do
+      template = online_store_template(%{name: "Toggle Me", enabled: true})
+
+      {:ok, view, _html} = live(conn, ~p"/online-store-templates")
+
+      # Toggle to disabled
+      view
+      |> element("button[phx-click='toggle-enabled'][phx-value-id='#{template.id}']")
+      |> render_click()
+
+      updated = OnlineStoreTemplates.get_template!(template.id)
+      refute updated.enabled
+
+      # Toggle back to enabled
+      view
+      |> element("button[phx-click='toggle-enabled'][phx-value-id='#{template.id}']")
+      |> render_click()
+
+      updated = OnlineStoreTemplates.get_template!(template.id)
+      assert updated.enabled
+    end
+  end
+end

test/music_library_web/live/record_set_live/index_test.exs

@@ -0,0 +1,158 @@
+defmodule MusicLibraryWeb.RecordSetLive.IndexTest do
+  use MusicLibraryWeb.ConnCase
+
+  import MusicLibrary.Fixtures.RecordSets
+  import Phoenix.LiveViewTest
+
+  alias MusicLibrary.RecordSets
+
+  describe "Index" do
+    test "lists record sets with names and record counts", %{conn: conn} do
+      {_set, _records} = record_set_with_records(2, %{name: "My Favorites"})
+
+      conn
+      |> visit(~p"/record-sets")
+      |> assert_has("h1", text: "Record Sets")
+      |> assert_has("h2", text: "My Favorites")
+    end
+
+    test "shows empty state when no sets exist", %{conn: conn} do
+      conn
+      |> visit(~p"/record-sets")
+      |> assert_has("p", text: "No record sets yet")
+    end
+  end
+
+  describe "Search" do
+    test "filters sets by query", %{conn: conn} do
+      record_set(%{name: "Road Trip"})
+      record_set(%{name: "Unrelated Set"})
+
+      conn
+      |> visit(~p"/record-sets?query=Road")
+      |> assert_has("h2", text: "Road Trip")
+      |> refute_has("h2", text: "Unrelated Set")
+    end
+  end
+
+  describe "Ordering" do
+    test "switches to alphabetical via URL param", %{conn: conn} do
+      record_set(%{name: "Zulu Set"})
+      record_set(%{name: "Alpha Set"})
+
+      {:ok, _view, html} = live(conn, ~p"/record-sets?order=alphabetical")
+
+      alpha_pos = :binary.match(html, "Alpha Set")
+      zulu_pos = :binary.match(html, "Zulu Set")
+
+      assert alpha_pos < zulu_pos
+    end
+  end
+
+  describe "Create set" do
+    test "creates a set with valid data", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/record-sets/new")
+
+      view
+      |> form("#record-set-form", record_set: %{name: "Brand New Set"})
+      |> render_submit()
+
+      assert [set] = RecordSets.search_record_sets("Brand New Set")
+      assert set.name == "Brand New Set"
+    end
+
+    test "shows validation errors with invalid data", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/record-sets/new")
+
+      html =
+        view
+        |> form("#record-set-form", record_set: %{name: ""})
+        |> render_change()
+
+      assert html =~ "can&#39;t be blank"
+    end
+  end
+
+  describe "Edit set" do
+    test "updates set with valid data", %{conn: conn} do
+      set = record_set(%{name: "Old Name"})
+
+      {:ok, view, _html} = live(conn, ~p"/record-sets/#{set}/edit")
+
+      view
+      |> form("#record-set-form", record_set: %{name: "Updated Name"})
+      |> render_submit()
+
+      updated = RecordSets.get_record_set!(set.id)
+      assert updated.name == "Updated Name"
+    end
+  end
+
+  describe "Delete set" do
+    test "deletes a set from the listing", %{conn: conn} do
+      set = record_set(%{name: "To Delete"})
+
+      {:ok, view, _html} = live(conn, ~p"/record-sets")
+
+      view
+      |> element("button[phx-click='delete_set'][phx-value-id='#{set.id}']")
+      |> render_click()
+
+      refute has_element?(view, "h2", "To Delete")
+      assert_raise Ecto.NoResultsError, fn -> RecordSets.get_record_set!(set.id) end
+    end
+  end
+
+  describe "Remove record from set" do
+    test "removes a record from the set", %{conn: conn} do
+      {set, [r1 | _]} = record_set_with_records(2)
+
+      {:ok, view, _html} = live(conn, ~p"/record-sets")
+
+      view
+      |> element(
+        "button[phx-click='remove_record'][phx-value-set-id='#{set.id}'][phx-value-record-id='#{r1.id}']"
+      )
+      |> render_click()
+
+      updated = RecordSets.get_record_set!(set.id)
+      refute Enum.any?(updated.items, &(&1.record.id == r1.id))
+    end
+  end
+
+  describe "Reorder records" do
+    test "moves a record left (up)", %{conn: conn} do
+      {set, [r1, r2 | _]} = record_set_with_records(3)
+
+      {:ok, view, _html} = live(conn, ~p"/record-sets")
+
+      view
+      |> element(
+        "button[phx-click='move_up'][phx-value-set-id='#{set.id}'][phx-value-record-id='#{r2.id}']"
+      )
+      |> render_click()
+
+      updated = RecordSets.get_record_set!(set.id)
+      ids_in_order = Enum.map(updated.items, & &1.record.id)
+      assert Enum.at(ids_in_order, 0) == r2.id
+      assert Enum.at(ids_in_order, 1) == r1.id
+    end
+
+    test "moves a record right (down)", %{conn: conn} do
+      {set, [r1, r2 | _]} = record_set_with_records(3)
+
+      {:ok, view, _html} = live(conn, ~p"/record-sets")
+
+      view
+      |> element(
+        "button[phx-click='move_down'][phx-value-set-id='#{set.id}'][phx-value-record-id='#{r1.id}']"
+      )
+      |> render_click()
+
+      updated = RecordSets.get_record_set!(set.id)
+      ids_in_order = Enum.map(updated.items, & &1.record.id)
+      assert Enum.at(ids_in_order, 0) == r2.id
+      assert Enum.at(ids_in_order, 1) == r1.id
+    end
+  end
+end

test/support/fixtures/music_library/online_store_templates.ex

@@ -0,0 +1,24 @@
+defmodule MusicLibrary.Fixtures.OnlineStoreTemplates do
+  @moduledoc """
+  This module defines test helpers for creating
+  entities via the `MusicLibrary.OnlineStoreTemplates` context.
+  """
+
+  alias MusicLibrary.OnlineStoreTemplates
+
+  def online_store_template(attrs \\ %{}) do
+    n = System.unique_integer([:positive])
+
+    {:ok, template} =
+      attrs
+      |> Enum.into(%{
+        name: "Store #{n}",
+        description: "A test store template",
+        url_template: "https://example.com/search?q={artist}+{title}+{format}",
+        enabled: true
+      })
+      |> OnlineStoreTemplates.create_template()
+
+    template
+  end
+end

test/support/fixtures/music_library/record_sets.ex

@@ -0,0 +1,35 @@
+defmodule MusicLibrary.Fixtures.RecordSets do
+  @moduledoc """
+  This module defines test helpers for creating
+  entities via the `MusicLibrary.RecordSets` context.
+  """
+
+  alias MusicLibrary.RecordSets
+
+  def record_set(attrs \\ %{}) do
+    {:ok, record_set} =
+      attrs
+      |> Enum.into(%{
+        name: "Set #{System.unique_integer([:positive])}",
+        description: "A test record set"
+      })
+      |> RecordSets.create_record_set()
+
+    record_set
+  end
+
+  def record_set_with_records(n, attrs \\ %{}) do
+    import MusicLibrary.Fixtures.Records, only: [record: 1]
+
+    set = record_set(attrs)
+
+    records =
+      Enum.map(1..n, fn _ ->
+        rec = record(%{})
+        {:ok, _} = RecordSets.add_record_to_set(set, rec.id)
+        rec
+      end)
+
+    {RecordSets.get_record_set!(set.id), records}
+  end
+end