       assert_ids_match_unordered Showtime.list_performances(contest), [p1, p2, p3]
     end
 
-    test "list_performances/1 preloads the performances' contest categories + categories" do
+    test "preloads the performances' contest categories + categories" do
       %{contest_category: %{contest: c}} = insert(:performance)
 
       assert [%Performance{
         contest_category: %ContestCategory{category: %Category{}}
       }] = Showtime.list_performances(c)
     end
-
-    test "get_performance!/2 gets a performance from the given contest by id" do
+  end
+
+  describe "get_performance!/2" do
+    test "gets a performance from the given contest by id" do
       %{id: id, contest_category: %{contest: c}} = insert(:performance)
 
       result = Showtime.get_performance!(c, id)
       assert result.id == id
     end
 
-    test "get_performance!/2 raises an error if the performance isn't found in the given contest" do
+    test "raises an error if the performance isn't found in the given contest" do
       c = insert(:contest)
       %{id: id} = insert(:performance)
 
       assert_raise Ecto.NoResultsError, fn -> Showtime.get_performance!(c, id) end
     end
 
-    test "get_performance!/2 preloads all associated data of the performance" do
+    test "preloads all associated data of the performance" do
       %{
         id: id,
         contest_category: %{contest: c}

        pieces: [%Piece{}]
      } = Showtime.get_performance!(c, id, edit_code)
    end

    test "lookup_performance/1 gets a performance by its edit code" do
      %{id: id, edit_code: edit_code} = insert(:performance)

      assert {:ok, result} = Showtime.lookup_performance(edit_code)
      assert result.id == id
    end

    test "lookup_performance/1 preloads the performance's contest category and contest" do
      %{edit_code: edit_code} = insert(:performance)

      assert {:ok, %Performance{

      assert acc2.age_group == "V"
    end

    test "assigns the correct age groups for a pop solo performance" do
      cc = insert(:contest_category, category: build(:category, genre: "popular"))
      {cc, attrs} = performance_params([
        appearance_params("soloist", ~D[2007-01-01]),
