basic admin endgame view and add (#3)

Reviewed-on: #3

test/support/fixtures/tags_fixtures.ex

@@ -0,0 +1,26 @@
+defmodule Chesstrainer.TagsFixtures do
+  @moduledoc """
+  This module defines test helpers for creating
+  entities via the `Chesstrainer.Tags` context.
+  """
+
+  @doc """
+  Generate a unique tag name.
+  """
+  def unique_tag_name, do: "some name#{System.unique_integer([:positive])}"
+
+  @doc """
+  Generate a tag.
+  """
+  def tag_fixture(attrs \\ %{}) do
+    {:ok, tag} =
+      attrs
+      |> Enum.into(%{
+        category: "some category",
+        name: unique_tag_name()
+      })
+      |> Chesstrainer.Tags.create_tag()
+
+    tag
+  end
+end