CI code coverage

.Rbuildignore

@@ -20,3 +20,4 @@
 ^_pkgdown\.yml$
 ^pkgdown$
 ^CRAN-SUBMISSION$
+^codecov\.yml$

.github/workflows/test-coverage.yaml

@@ -0,0 +1,30 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/master/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: test-coverage
+
+jobs:
+  test-coverage:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: covr
+
+      - name: Test coverage
+        run: covr::codecov()
+        shell: Rscript {0}

DESCRIPTION

@@ -41,7 +41,8 @@ Suggests:
     xml2 (>= 1.0.0),
     fontquiver (>= 0.2.0),
     knitr,
-    rmarkdown
+    rmarkdown,
+    covr
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.1.2
 Encoding: UTF-8

README.md

@@ -4,6 +4,7 @@
 [![R-CMD-check](https://github.com/nx10/httpgd/workflows/R-CMD-check/badge.svg)](https://github.com/nx10/httpgd/actions)
 [![CRAN](https://www.r-pkg.org/badges/version/httpgd)](https://CRAN.R-project.org/package=httpgd)
 ![downloads](https://cranlogs.r-pkg.org/badges/grand-total/httpgd)
+[![Codecov test coverage](https://codecov.io/gh/nx10/httpgd/branch/master/graph/badge.svg)](https://app.codecov.io/gh/nx10/httpgd?branch=master)
 <!-- badges: end -->
 
 A graphics device for R that is accessible via network protocols.
@@ -86,4 +87,4 @@ This project is licensed GPL v2.0.
 
 It includes parts of [`svglite`](<https://github.com/r-lib/svglite>) (GPL &geq; 2), [`Belle`](https://github.com/octobanana/belle) (MIT) and [`fmt`](https://github.com/fmtlib/fmt) (MIT). The HTML client includes [Material Design icons by Google](https://github.com/google/material-design-icons) which are licensed under the [Apache License Version 2.0](https://www.apache.org/licenses/LICENSE-2.0.txt).
 
-Full copies of the license agreements used by these components are included in [`./inst/licenses`](https://github.com/nx10/httpgd/tree/master/inst/licenses).
+Full copies of the license agreements used by these components are included in [`./inst/licenses`](https://github.com/nx10/httpgd/tree/master/inst/licenses).

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