Fix: Use standard exit code 0 for success

src/universal-intel-chipset-updater.ps1

@@ -431,8 +431,8 @@ function Check-ForUpdaterUpdates {
                             Start-Process -FilePath $outputPath
 
                             # Exit immediately without any user interaction
-                            # Use exit code 100 to indicate successful launch of new version
-                            [Environment]::Exit(100)
+                            # Use exit code 0 to indicate successful launch of new version
+                            exit 0
                         } else {
                             Write-Host "`n Update cancelled by user." -ForegroundColor Yellow
                             Cleanup

tests/exit-code.test.ps1

@@ -0,0 +1,43 @@
+Describe 'universal-intel-chipset-updater.ps1' {
+    It 'should exit with code 0 after launching a new version' {
+        # Define dummy functions for Pester to find and mock.
+        function Show-Screen1 { }
+        function Verify-ScriptHash { }
+        function Invoke-WebRequest { }
+        function Read-Host { }
+        function Get-DownloadsFolder { }
+        function Start-Process { }
+        function Cleanup { }
+        function Show-FinalCredits { }
+
+        # Mock the behavior of the functions for this test case.
+        Mock -CommandName Show-Screen1 { }
+        Mock -CommandName Verify-ScriptHash { return $true }
+        Mock -CommandName Get-DownloadsFolder { return '/tmp' }
+        Mock -CommandName Start-Process { }
+        Mock -CommandName Cleanup { }
+        Mock -CommandName Show-FinalCredits { }
+
+        # Mock the network call to simulate finding a newer version.
+        Mock -CommandName Invoke-WebRequest {
+            return @{ Content = "99.9-9999.99.99" } # A fake, newer version
+        }
+
+        # Mock user input to follow the "download and exit" code path.
+        $userInput = @('N', 'Y', 'Y') # Prompts: Continue? -> N, Download? -> Y, Exit? -> Y
+        $inputCounter = 0
+        Mock -CommandName Read-Host {
+            $response = $userInput[$inputCounter]
+            $script:inputCounter++
+            return $response
+        }
+
+        # Wrap the script execution in a function
+        function Invoke-ScriptForTest {
+            . ./src/universal-intel-chipset-updater.ps1
+        }
+
+        # Assert that the script attempts to exit with a code of '0'.
+        Should -ScriptBlock ${function:Invoke-ScriptForTest} -Throw -ExceptionType ([System.Management.Automation.ExitException]) -WithMessage '0'
+    }
+}