pester for ci

.github/workflows/common_tests.yml

@@ -4,9 +4,7 @@ jobs:
   CommonTests:
     strategy:
         fail-fast: false
-        matrix:
-          os: [ubuntu-16.04, ubuntu-latest, windows-2016, windows-latest, macos-latest]
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     steps:
     - name: Checkout
       uses: actions/checkout@master
@@ -16,14 +14,4 @@ jobs:
       run: |
         Install-Module Pester -Force -Scope CurrentUser
         Import-Module Pester
-        $pesterParams = @(
-          @{
-            Path="./packages-generation/manifest-utils.Tests.ps1";
-          },
-        )
-        Invoke-Pester -Script $pesterParams -OutputFile "test_results.xml" -OutputFormat NUnitXml
-    - name: Upload math result for job 1
-      uses: actions/upload-artifact@v1
-      with:
-        name: test_results
-        path: test_results.xml
+        Invoke-Pester -Ci -OutputFile "test_results.xml" -OutputFormat NUnitXml