add contexts

test/support/fixtures/contexts_fixtures.ex

@@ -0,0 +1,23 @@
+defmodule Memex.ContextsFixtures do
+  @moduledoc """
+  This module defines test helpers for creating
+  entities via the `Memex.Contexts` context.
+  """
+
+  @doc """
+  Generate a context.
+  """
+  def context_fixture(attrs \\ %{}) do
+    {:ok, context} =
+      attrs
+      |> Enum.into(%{
+        content: "some content",
+        tag: [],
+        title: "some title",
+        visibility: :public
+      })
+      |> Memex.Contexts.create_context()
+
+    context
+  end
+end