This line:
[ValidateScript({if (!(Test-Path $_) -and (!($_ -like "*.exe")))
{ Throw "Specify correct path to executable." }
else {$true}})]
[String]$installerPath
The Test-Path validation returns True/False.
However ! -like is not working as expected. Passing arguments with .txt, .msi etc file type does not validate correctly.
For clearer validation, I would split up the checks and provide different error messages:
[ValidateScript({
if(-Not Test-Path $_ ){ throw "$_ does not exist." }
if(-Not ($_ -like "*.exe")){ throw "Input file must be an executable." }
$true
})]
[String]
$installerPath
No "else" is needed since the throw causes an immediate exit.
I would simply swap the if-else block and remove the negation (!):
[ValidateScript(
{
if ((Test-Path $_) -and ($_ -like "*.exe"))
{
$true
}
else
{
Throw "Specify correct path to executable."
}
})
