--- a
+++ b/.github/workflows/coverage.yaml
@@ -0,0 +1,35 @@
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+concurrency:
+  # Group runs by PR, but keep runs on the default branch separate
+  # because we do not want to cancel ToolShed uploads
+  group: coverage-${{ (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/main') && github.run_number || github.ref }}
+  cancel-in-progress: true
+
+name: test-coverage
+
+jobs:
+  test-coverage:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::covr
+          needs: coverage
+
+      - name: Test coverage
+        run: covr::codecov(quiet = FALSE)
+        shell: Rscript {0}