add workflow for v3 alpha

.github/workflows/build-and-test-alpha.yml

@@ -0,0 +1,119 @@
+name: Build + Test v3 alpha
+
+on:
+  push:
+    branches: [v3-alpha]
+  workflow_dispatch:
+
+jobs:
+  test_go:
+    name: Run Go Tests
+    if: github.repository == 'wailsapp/wails'
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        go-version: [1.21]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Install linux dependencies
+        if: matrix.os == 'ubuntu-latest'
+        run: sudo apt-get update -y && sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev build-essential pkg-config
+
+      - name: Setup Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Run tests (mac)
+        if: matrix.os == 'macos-latest'
+        env:
+          CGO_LDFLAGS: -framework UniformTypeIdentifiers -mmacosx-version-min=10.13
+        working-directory: ./v3
+        run: go test -v ./...
+
+      - name: Run tests (!mac)
+        if: matrix.os != 'macos-latest'
+        working-directory: ./v3
+        run: go test -v ./...
+
+  test_js:
+    name: Run JS Tests
+    if: github.repository == 'wailsapp/wails'
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18.x]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install dependencies
+        run: npm install
+        working-directory: v2/internal/frontend/runtime
+
+      - name: Run tests
+        run: npm test
+        working-directory: v2/internal/frontend/runtime
+
+  test_templates:
+    name: Test Templates
+    needs: test_go
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: true
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        template:
+          [
+            svelte,
+            svelte-ts,
+            vue,
+            vue-ts,
+            react,
+            react-ts,
+            preact,
+            preact-ts,
+            lit,
+            lit-ts,
+            vanilla,
+            vanilla-ts,
+            plain,
+          ]
+        go-version: [1.21]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Build Wails3 CLI
+        run: |
+          cd ./v3/cmd/wails3
+          go install
+          wails3 -help
+
+      - name: Install linux dependencies
+        if: matrix.os == 'ubuntu-latest'
+        run: sudo apt-get update -y && sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev build-essential pkg-config
+
+      - name: Generate template '${{ matrix.template }}'
+        run: |
+          go install github.com/go-task/task/v3/cmd/task@latest 
+          mkdir -p ./test-${{ matrix.template }}
+          cd ./test-${{ matrix.template }}
+          wails3 init -n ${{ matrix.template }} -t ${{ matrix.template }} -ci
+          cd ${{ matrix.template }}
+          wails3 build