Workflows: Add workflow for running tests on push

.gitea/workflows/test.yaml

@@ -0,0 +1,27 @@
+name: Test
+on:
+  push:
+    branches: ["**"]
+jobs:
+  test:
+    name: Run tests
+    runs-on: windows-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Setup MSBuild
+        uses: microsoft/setup-msbuild@v1.1
+      - name: Setup NuGet
+        uses: nuget/setup-nuget@v1
+      - name: Restore NuGet packages
+        shell: powershell
+        run: $(& nuget restore Elwig.sln; $a=$lastexitcode) | findstr x*; exit $a
+      - name: Build Elwig
+        shell: powershell
+        run: $(& msbuild -verbosity:quiet Elwig/Elwig.csproj -property:Configuration=Debug; $a=$lastexitcode) | findstr x*; exit $a
+      - name: Build Tests
+        shell: powershell
+        run: $(& dotnet build Tests; $a=$lastexitcode) | findstr x*; exit $a
+      - name: Run Tests
+        shell: powershell
+        run: $(& dotnet test Tests; $a=$lastexitcode) | findstr x*; exit $a