add coverage

.Rbuildignore

@@ -1,3 +1,4 @@
 ^README.Rmd$
 ^README.md$
 ^\.github$
+^codecov\.yml$

.github/workflows/R-CMD-check.yaml

@@ -29,3 +29,27 @@ jobs:
           needs: check
 
       - uses: r-lib/actions/check-r-package@v2
+
+            - name: Test coverage
+        run: |
+          covr::codecov(
+            quiet = FALSE,
+            clean = FALSE,
+            install_path = file.path(Sys.getenv("RUNNER_TEMP"), "package")
+          )
+        shell: Rscript {0}
+
+      - name: Show testthat output
+        if: always()
+        run: |
+          ## --------------------------------------------------------------------
+          find ${{ runner.temp }}/package -name 'testthat.Rout*' -exec cat '{}' \; || true
+        shell: bash
+
+      - name: Upload test results
+        if: failure()
+        uses: actions/upload-artifact@v3
+        with:
+          name: coverage-test-failures
+          path: ${{ runner.temp }}/package
+

README.Rmd

@@ -9,6 +9,7 @@ editor_options:
 [![License: GPL v3](https://img.shields.io/badge/License-GPLv3-green.svg)](https://www.gnu.org/licenses/gpl-3.0)
 [![Lifecycle: experimental](https://img.shields.io/badge/lifecycle-maturing-blue.svg)](https://www.tidyverse.org/lifecycle/#maturing)
 [![R-CMD-check](https://github.com/PolMine/duplicates/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/PolMine/duplicates/actions/workflows/R-CMD-check.yaml)
+[![Codecov test coverage](https://codecov.io/gh/PolMine/duplicates/branch/devel/graph/badge.svg)](https://app.codecov.io/gh/PolMine/duplicates?branch=devel)
 <!-- badges: end -->
 
 

README.md

@@ -8,6 +8,8 @@ v3](https://img.shields.io/badge/License-GPLv3-green.svg)](https://www.gnu.org/l
 [![Lifecycle:
 experimental](https://img.shields.io/badge/lifecycle-maturing-blue.svg)](https://www.tidyverse.org/lifecycle/#maturing)
 [![R-CMD-check](https://github.com/PolMine/duplicates/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/PolMine/duplicates/actions/workflows/R-CMD-check.yaml)
+[![Codecov test
+coverage](https://codecov.io/gh/PolMine/duplicates/branch/devel/graph/badge.svg)](https://app.codecov.io/gh/PolMine/duplicates?branch=devel)
 <!-- badges: end -->
 
 ## About

codecov.yml

@@ -0,0 +1,14 @@
+comment: false
+
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
+        informational: true
+    patch:
+      default:
+        target: auto
+        threshold: 1%
+        informational: true