From a7a75404a4eaaf5e40de410457dad4abfd7bbd2d Mon Sep 17 00:00:00 2001
From: ChrisRackauckas-Claude <accounts@chrisrackauckas.com>
Date: Mon, 8 Jun 2026 07:58:00 -0400
Subject: [PATCH] Canonical CI: grouped-tests.yml + root test/test_groups.toml

Convert the root CI workflow (ci.yml, name: CI) from a hand-maintained
group x version x os matrix calling tests.yml@v1 into a thin caller of the
canonical grouped-tests.yml@v1. The matrix now lives in test/test_groups.toml
at the repo root and is computed by compute_affected_sublibraries.jl
--root-matrix.

runtests.jl already dispatches on the GROUP env var via TestItemRunner tags
("All" = everything except :nopre-tagged items; "nopre" = only :nopre-tagged),
so no runtests.jl change is needed (default group-env-name GROUP).

The old job set no non-default tests.yml inputs (no check-bounds, coverage on,
default src,ext, no apt packages), so the thin caller needs no `with:` block.
on: triggers and concurrency: are preserved verbatim; name: CI is kept so the
branch-protection status check is preserved.

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 .github/workflows/ci.yml | 25 +------------------------
 test/test_groups.toml    | 13 +++++++++++++
 2 files changed, 14 insertions(+), 24 deletions(-)
 create mode 100644 test/test_groups.toml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b6416457..4b447d94 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,28 +21,5 @@ concurrency:
 
 jobs:
   tests:
-    name: "Tests"
-    strategy:
-      fail-fast: false
-      matrix:
-        group:
-          - "All"
-          - "nopre"
-        version:
-          - "1"
-          - "lts"
-          - "pre"
-        os:
-          - ubuntu-latest
-          - macOS-latest
-          - windows-latest
-        exclude:
-          # Don't run nopre tests on pre-release Julia
-          - group: "nopre"
-            version: "pre"
-    uses: "SciML/.github/.github/workflows/tests.yml@v1"
-    with:
-      julia-version: "${{ matrix.version }}"
-      os: "${{ matrix.os }}"
-      group: "${{ matrix.group }}"
+    uses: "SciML/.github/.github/workflows/grouped-tests.yml@v1"
     secrets: "inherit"
diff --git a/test/test_groups.toml b/test/test_groups.toml
new file mode 100644
index 00000000..efba756b
--- /dev/null
+++ b/test/test_groups.toml
@@ -0,0 +1,13 @@
+# Root test-group matrix for CurveFit.jl, consumed by the reusable
+# grouped-tests.yml workflow via scripts/compute_affected_sublibraries.jl
+# --root-matrix. runtests.jl reads the GROUP env var and dispatches via
+# TestItemRunner tags: "All" runs everything except :nopre-tagged items,
+# "nopre" runs only :nopre-tagged items.
+
+[All]
+versions = ["1", "lts", "pre"]
+os = ["ubuntu-latest", "macOS-latest", "windows-latest"]
+
+[nopre]
+versions = ["1", "lts"]
+os = ["ubuntu-latest", "macOS-latest", "windows-latest"]