From 4faed7d064428ba56314139468c0dd236b41980f Mon Sep 17 00:00:00 2001
From: Eddy Frankenberger <edward.frankenberger@nih.gov>
Date: Wed, 3 Jun 2026 15:22:56 -0400
Subject: [PATCH 1/2] add tests

---
 .Rbuildignore                      |  1 +
 .github/workflows/R-CMD-check.yaml | 38 ++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 .github/workflows/R-CMD-check.yaml

diff --git a/.Rbuildignore b/.Rbuildignore
index 7909fea..20914c9 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -1,4 +1,5 @@
 ^.*\.Rproj$
 ^\.Rproj\.user$
 ^\.claude$
+^\.github$
 ^LICENSE\.md$
diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
new file mode 100644
index 0000000..71edba7
--- /dev/null
+++ b/.github/workflows/R-CMD-check.yaml
@@ -0,0 +1,38 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: R-CMD-check
+
+permissions: read-all
+
+jobs:
+  R-CMD-check:
+    runs-on: ubuntu-latest
+
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: r-lib/actions/setup-pandoc@v2
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          r-version: release
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::rcmdcheck
+          needs: check
+
+      - uses: r-lib/actions/check-r-package@v2
+        with:
+          upload-snapshots: true
+          build_args: 'c("--no-manual","--compact-vignettes=gs+qpdf")'

From c719e4e5249c1bc0dab64f698f2c43faee300741 Mon Sep 17 00:00:00 2001
From: Eddy Frankenberger <edward.frankenberger@nih.gov>
Date: Wed, 3 Jun 2026 15:37:50 -0400
Subject: [PATCH 2/2] update description with testthat

---
 DESCRIPTION | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/DESCRIPTION b/DESCRIPTION
index f23261d..b4b9eeb 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -17,3 +17,6 @@ Imports:
     magick (>= 2.7.0),
     cli (>= 3.6.0),
     fs (>= 1.6.0)
+Suggests:
+    testthat (>= 3.0.0)
+Config/testthat/edition: 3