From 2b3a8fc0586498457f887d1da8898bc238938e06 Mon Sep 17 00:00:00 2001
From: Hanneke Leegwater <h.leegwater@lacdr.leidenuniv.nl>
Date: Fri, 20 Dec 2024 13:11:39 +0100
Subject: [PATCH] Test on multiple R versions

---
 .github/workflows/R-CMD-check.yaml | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 0967791..f4952da 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -5,21 +5,36 @@ on:
     branches: [main, master, dev, fix_problems_CI]
   pull_request:
 
-name: R-CMD-check.yaml
+name: R-CMD-check
 
 permissions: read-all
 
 jobs:
   R-CMD-check:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.config.os }}
+
+    name: ${{ matrix.config.os }} (${{ matrix.config.r }})
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {os: macos-latest,   r: 'release'}
+          - {os: windows-latest, r: 'release'}
+          - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
+          - {os: ubuntu-latest,   r: 'release'}
+          - {os: ubuntu-latest,   r: 'oldrel-1'}
+
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
       R_KEEP_PKG_SOURCE: yes
+
     steps:
       - uses: actions/checkout@v4
 
       - uses: r-lib/actions/setup-r@v2
         with:
+          r-version: ${{ matrix.config.r }}
           use-public-rspm: true
 
       - uses: r-lib/actions/setup-r-dependencies@v2