Set up GitHub Actions

.github/workflows/test.yml

@@ -0,0 +1,23 @@
+name: Test
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: Build project
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+      - name: Set up JDK 11
+        uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 11
+
+        # Builds the release artifacts of the library
+      - name: Test
+        run: ./gradlew test