[release/v7.4.0-preview.6] Continued improvement to tests for release automation (#20182) (#20259)

test/powershell/Modules/Microsoft.PowerShell.Security/ConstrainedLanguageRestriction.Tests.ps1

@@ -83,7 +83,7 @@ try
                 $result = Get-Command NestedFn1 2> $null;
                 return ($result -ne $null)
 '@
-                $isCommandAccessible = powershell.exe -noprofile -nologo -c $command
+                $isCommandAccessible = pwsh.exe -noprofile -nologo -c $command
             }
             finally
             {

test/powershell/Modules/PowerShellGet/PowerShellGet.Tests.ps1

@@ -104,7 +104,24 @@ function Initialize
 
 function Remove-InstalledModules
 {
-    Get-InstalledModule -Name $TestModule -AllVersions -ErrorAction SilentlyContinue | PowerShellGet\Uninstall-Module -Force
+    try {
+        $mod = Get-InstalledModule -Name $TestModule -AllVersions -ErrorAction SilentlyContinue
+        if ($null -eq $mod) {
+            return
+        }
+
+        if (Get-Module -Name $TestModule -ErrorAction Ignore) {
+            Remove-Module -Force -Name $TestModule
+        }
+
+        $installedPath = $mod.InstalledLocation
+        if (Test-Path $installedPath) {
+            Remove-Item -Force -Recurse $installedPath -ErrorAction Ignore
+        }
+    }
+    catch {
+        Write-Warning "Remove-InstalledModules: $_"
+    }
 }
 
 Describe "PowerShellGet - Module tests" -tags "Feature" {
@@ -172,7 +189,20 @@ Describe "PowerShellGet - Module tests (Admin)" -Tags @('Feature', 'RequireAdmin
 
 function Remove-InstalledScripts
 {
-    Get-InstalledScript -Name $TestScript -ErrorAction SilentlyContinue | Uninstall-Script -Force
+    $installedScript = Get-InstalledScript -Name $TestScript -ErrorAction SilentlyContinue
+    if ($null -eq $installedScript) {
+        return
+    }
+
+	$scriptPath = Join-Path ${installedScript}.InstalledLocation "${TestScript}.ps1"
+	if (test-Path -Type Leaf -Path $scriptPath) {
+		Remove-Item -Force -Path $scriptPath -ErrorAction Ignore
+	}
+
+	$xmlPath = Join-Path ${installedScript}.InstalledLocation InstalledScriptInfos "${TestScript}_InstalledScriptInfo.xml"
+	if (test-Path -Type Leaf -Path $xmlPath) {
+		Remove-Item -Force -Path $xmlPath -ErrorAction Ignore
+	}
 }
 
 Describe "PowerShellGet - Script tests" -tags "Feature" {