From 066fb30b2112b666d39a0e21e886ef45f6171837 Mon Sep 17 00:00:00 2001
From: Claudio Ortolina <cloud8421@gmail.com>
Date: Mon, 11 Nov 2024 12:39:28 +0000
Subject: [PATCH] Explain artist_uuid test implementation

---
 test/support/fixtures/records_fixtures.ex | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/support/fixtures/records_fixtures.ex b/test/support/fixtures/records_fixtures.ex
index aecf2c78..b6f8afca 100644
--- a/test/support/fixtures/records_fixtures.ex
+++ b/test/support/fixtures/records_fixtures.ex
@@ -95,6 +95,9 @@ defmodule MusicLibrary.RecordsFixtures do
     |> record_fixture()
   end
 
+  # The following functions have been lifted from `Ecto.UUID`'s source.
+  # The purpose is to provide a deterministic implementation of uuid generation
+  # that can be used in tests to generate the same artist uuid.
   defp artist_uuid(name) do
     <<u0::48, _::4, u1::12, _::2, u2::62>> = :crypto.hash(:md5, name)
     encode(<<u0::48, 4::4, u1::12, 2::2, u2::62>>)