Add ci.yml, add test entry in build sbt

.github/workflows/ci.yml

@@ -0,0 +1,30 @@
+name: CI
+on:
+  workflow_dispatch:
+  pull_request:
+
+  # triggering CI default branch improves caching
+  # see https://docs.github.com/en/free-pro-team@latest/actions/guides/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: corretto
+          java-version: 11
+          cache: sbt
+      - name: Build and Test
+        run: sbt compile
+      - name: Test Summary
+        uses: test-summary/action@v2
+        with:
+          paths: "test-results/**/TEST-*.xml"
+        if: always()

build.sbt

@@ -17,6 +17,7 @@ val artifactProductionSettings = Seq(
   releaseCrossBuild := true,
   scalacOptions ++= Seq("-release:11"),// do we need these as well? - ("-feature", "-deprecation", "-unchecked", "-Xfatal-warnings")
   licenses := Seq(License.Apache2),
+  Test / testOptions += Tests.Argument(TestFrameworks.ScalaTest, "-u", s"test-results/scala-${scalaVersion.value}", "-o")
 )
 
 lazy val root = (project in file("."))