Run tests on Linux (#492)

Author: bitfaster

.github/workflows/gate.yml

@@ -1,6 +1,7 @@
 name: Build
 
 on:
+  workflow_dispatch:
   push:
     branches: [ main ]
   pull_request:
@@ -119,9 +120,45 @@ jobs:
         reporter: dotnet-trx 
         only-summary: 'true'
 
+  linux:
+
+    runs-on: ubuntu-latest
+
+    permissions:
+      checks: write
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Setup .NET Core
+      uses: actions/setup-dotnet@v2
+      with:
+        dotnet-version: 6.0.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 -f net6.0 /p:CollectCoverage=true /p:CoverletOutput=TestResults/ /p:CoverletOutputFormat=lcov --logger "trx;LogFileName=results.trx"
+    - name: Publish coverage report to coveralls.io   
+      uses: coverallsapp/github-action@master   
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }} 
+        path-to-lcov: BitFaster.Caching.UnitTests/TestResults/coverage.net6.0.info
+        flag-name: linux
+        parallel: true
+    - name: Generate unit test report
+      uses: phoenix-actions/test-reporting@v12
+      id: unit-test-report-linux
+      if: success() || failure() 
+      with:
+        name: test results (linux net6.0)
+        path: BitFaster.Caching.UnitTests/TestResults/results.trx
+        reporter: dotnet-trx 
+        only-summary: 'true'
+
   coverage:
 
-    needs: [win, mac]
+    needs: [win, mac, linux]
 
     runs-on: ubuntu-latest