From 4be1cdd80b08e1d6168bece05bf69cfae591aec7 Mon Sep 17 00:00:00 2001
From: ee7 <45465154+ee7@users.noreply.github.com>
Date: Sun, 27 Dec 2020 21:20:01 +0100
Subject: [PATCH] canonical-schema: Fix UUID regex pattern

Commit cea02afb494a (#1676) added a UUID to each test case. However, the
regex pattern that it added to the canonical schema was too permissive,
meaning that CI would pass on a PR that added, for example, a version 1
UUID (see #1735).

Changes:
- Use `a-f` instead of `a-z`
- The third group must start with `4`.
- The fourth group must start with `8`, `9`, `a` or `b`.
---
 canonical-schema.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/canonical-schema.json b/canonical-schema.json
index 0702a62c8d..ba96cd733b 100644
--- a/canonical-schema.json
+++ b/canonical-schema.json
@@ -109,9 +109,9 @@
           },
 
       "uuid":
-          { "description": "A universally unique identifier in the v4 format"
+          { "description": "A version 4 UUID (compliant with RFC 4122) in the canonical textual representation"
           , "type"       : "string"
-          , "pattern"    : "^[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12}$"
+          , "pattern"    : "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
           },
 
       "scenario":