From 720dc376415cdc034693d1fef358d4108790f447 Mon Sep 17 00:00:00 2001
From: ChrisRackauckas-Claude <accounts@chrisrackauckas.com>
Date: Tue, 9 Jun 2026 18:11:48 -0400
Subject: [PATCH] Canonical CI: grouped-tests.yml + root test/test_groups.toml

Convert the root Tests.yml matrix test job to the canonical thin caller
(SciML/.github/.github/workflows/grouped-tests.yml@v1) and move the
group x version matrix into test/test_groups.toml at the repo root.

The matrix script (compute_affected_sublibraries.jl --root-matrix) emits
the same (group, version) set as the previous hand-maintained matrix:
  Core x {1, lts}, LineSearchesJL x {1, lts}, QA x {1}.

GROUP dispatch already exists in test/runtests.jl (ReTestItems tags), so
no group-env-name override is needed (root reads GROUP). The separate
enzyme job, on:/concurrency:, and all other workflows are left untouched.
Project.toml already has julia="1.10" and [compat] for every [extras]
dep, so no metadata fixes were required.

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 .github/workflows/Tests.yml | 20 +-------------------
 test/test_groups.toml       |  8 ++++++++
 2 files changed, 9 insertions(+), 19 deletions(-)
 create mode 100644 test/test_groups.toml

diff --git a/.github/workflows/Tests.yml b/.github/workflows/Tests.yml
index 1b0cc85..358fa51 100644
--- a/.github/workflows/Tests.yml
+++ b/.github/workflows/Tests.yml
@@ -18,25 +18,7 @@ concurrency:
 
 jobs:
   tests:
-    name: "Tests"
-    strategy:
-      fail-fast: false
-      matrix:
-        version:
-          - "1"
-          - "lts"
-        group:
-          - Core
-          - LineSearchesJL
-          - QA
-        exclude:
-          # QA tests only run on latest stable Julia
-          - version: "lts"
-            group: QA
-    uses: "SciML/.github/.github/workflows/tests.yml@v1"
-    with:
-      julia-version: "${{ matrix.version }}"
-      group: "${{ matrix.group }}"
+    uses: "SciML/.github/.github/workflows/grouped-tests.yml@v1"
     secrets: "inherit"
 
   enzyme:
diff --git a/test/test_groups.toml b/test/test_groups.toml
new file mode 100644
index 0000000..8f01bd4
--- /dev/null
+++ b/test/test_groups.toml
@@ -0,0 +1,8 @@
+[Core]
+versions = ["1", "lts"]
+
+[LineSearchesJL]
+versions = ["1", "lts"]
+
+[QA]
+versions = ["1"]