Add github actions

.github/workflows/tests.yml

@@ -0,0 +1,63 @@
+name: Windows Image Builder tests
+
+on: [push, pull_request]
+
+jobs:
+  code_checks:
+    runs-on: windows-2019
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+      - name: Install Dependencies
+        shell: powershell
+        run: |
+          Install-Module -Force -AllowClobber -Confirm:$false "PSScriptAnalyzer"
+      - name: Run code checks
+        shell: powershell
+        run: |
+          $rules = @("PSProvideCommentHelp","PSUseDeclaredVarsMoreThanAssignments","PSAvoidUsingEmptyCatchBlock","PSAvoidUsingCmdletAliases","PSAvoidDefaultValueForMandatoryParameter","PSAvoidDefaultValueSwitchParameter","PSUseToExportFieldsInManifest","PSAvoidUsingPositionalParameters");
+          $resScryptAnalyzer = Invoke-ScriptAnalyzer -Path . -IncludeRule $rules;
+          if ($resScryptAnalyzer.Count -gt 0) {
+            throw "$($resScryptAnalyzer.Count) failed style warnings found."
+          }
+  functional_tests_2019:
+    runs-on: windows-2019
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+      - name: Install Dependencies
+        shell: powershell
+        run: |
+          Uninstall-Module "Pester" -Force
+          Install-Module -Force -AllowClobber -Confirm:$false "Pester" -RequiredVersion 4.10.1 -SkipPublisherCheck
+      - name: Run code checks
+        shell: powershell
+        run: |
+          Import-Module Pester
+          $res = Invoke-Pester -OutputFormat NUnitXml -OutputFile TestsResults.xml -PassThru
+          if (($res.FailedCount -gt 0)) {
+            Get-Content -Path TestsResults.xml -Encoding Ascii | Write-Output
+            throw "$($res.FailedCount) Pester tests failed."
+          }
+  functional_tests_latest:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+      - name: Install Dependencies
+        shell: powershell
+        run: |
+          Uninstall-Module "Pester" -Force
+          Install-Module -Force -AllowClobber -Confirm:$false "Pester" -RequiredVersion 4.10.1 -SkipPublisherCheck
+      - name: Run code checks
+        shell: powershell
+        run: |
+          Import-Module Pester
+          $res = Invoke-Pester -OutputFormat NUnitXml -OutputFile TestsResults.xml -PassThru
+          if (($res.FailedCount -gt 0)) {
+            Get-Content -Path TestsResults.xml -Encoding Ascii | Write-Output
+            throw "$($res.FailedCount) Pester tests failed."
+          }

Tests/WinImageBuilder.Tests.ps1

@@ -74,7 +74,10 @@ function Get-VMSwitch {}
 
 function Optimize-VHD {}
 
-Import-Module $modulePath
+$LastErrorActionPreference = $ErrorActionPreference
+$ErrorActionPreference = "Stop"
+Import-Module "${modulePath}"
+$ErrorActionPreference = $LastErrorActionPreference
 
 Describe "Test New-WindowsCloudImage" {
     Mock Write-Host -Verifiable -ModuleName $moduleName { return 0 }