test build action

.github/ci.yml

@@ -0,0 +1,31 @@
+name: Build
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - develop
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ windows-latest, ubuntu-latest, macos-latest ]
+    steps:
+      - name: Get the sources
+        uses: actions/checkout@v2
+
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: 5.0.x
+
+      - name: Install dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --configuration Release --no-restore
+
+      - name: Test
+        run: dotnet test --no-restore --verbosity normal