add github worfklow to run pester tests in prs

Author: bryanbcook

.github/workflows/pester-tests.yml

@@ -0,0 +1,84 @@
+name: Pester Tests
+
+on:
+  pull_request:
+    branches: [ main ]
+    paths:
+      - 'src/**'
+      - '.github/workflows/pester-tests.yml'
+  push:
+    branches: [ main ]
+    paths:
+      - 'src/**'
+      - '.github/workflows/pester-tests.yml'
+
+jobs:
+  test:
+    runs-on: windows-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Install Pester
+      shell: pwsh
+      run: |
+        Set-PSRepository PSGallery -InstallationPolicy Trusted
+        Install-Module -Name Pester -Force -SkipPublisherCheck
+        
+    - name: Run Pester Tests
+      shell: pwsh
+      run: |
+        # Import the module
+        Import-Module ./src/PSBlogger.psd1 -Force
+        
+        # Configure Pester
+        $PesterConfig = @{
+          Run = @{
+            Path = './src/tests'
+          }
+          Output = @{
+            Verbosity = 'Detailed'
+          }
+          TestResult = @{
+            Enabled = $true
+            OutputPath = 'TestResults.xml'
+            OutputFormat = 'NUnitXml'
+          }
+          CodeCoverage = @{
+            Enabled = $true
+            Path = './src/*.ps*1'
+            OutputPath = 'coverage.xml'
+            OutputFormat = 'JaCoCo'
+          }
+        }
+        
+        # Run tests
+        $Results = Invoke-Pester -Configuration $PesterConfig
+        
+        # Exit with error code if tests failed
+        if ($Results.FailedCount -gt 0) {
+          Write-Error "Tests failed: $($Results.FailedCount) failed out of $($Results.TotalCount) total tests"
+          exit 1
+        }
+        
+        Write-Host "All tests passed: $($Results.PassedCount) out of $($Results.TotalCount) tests"
+        
+    # - name: Publish Test Results
+    #   uses: dorny/test-reporter@v1
+    #   if: always()
+    #   with:
+    #     name: Pester Tests
+    #     path: TestResults.xml
+    #     reporter: java-junit
+    #     fail-on-error: true
+        
+    # - name: Upload Test Results
+    #   uses: actions/upload-artifact@v4
+    #   if: always()
+    #   with:
+    #     name: test-results
+    #     path: |
+    #       TestResults.xml
+    #       coverage.xml
+    #     retention-days: 7