PowerShell script to split a string into arbitrary sizes, formatting the string for use in C# or PowerShell

Split-String.ps1

function Split-String {
  param (
    [Parameter(Mandatory = $true)]
    [string]$String,
    [int]$MinLength = 50,
    [int]$MaxLength = 120,
    [string]$VariableName = "data",
    [ValidateSet("PowerShell", "CSharp")]
    $Format = "PowerShell"
  )

  $index = 0
  $length = $String.length

  if ($Format -eq "CSharp") {
    Write-Output "string $VariableName = `"`";"
  }

  while ($index -lt $length) {
    $substringSize = Get-Random -Minimum $MinLength -Maximum $MaxLength
    if (($index + $substringSize) -gt $length) {
      $substringSize = $length - $index
    }
    $subString = $string.substring($index, $substringSize)
    if ($Format -eq "PowerShell") {
      Write-Output "`$$VariableName += `"$subString`""
    }
    if ($Format -eq "CSharp") {
      Write-Output "$VariableName += `"$subString`";"
    }
    $index += $substringSize
  }
}

Example Output:

PS> Split-String -String $example -MinLength 20 -MaxLength 75 -VariableName 'demo'
$demo += "aaaaaaaaaaaaaaaaaaaaaaaaa"
$demo += "aaaaaaaaaaaaaaaaaaaaaaaaaaa"
$demo += "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
$demo += "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
$demo += "aaaaaaaaaaaaaaaaaaaaaa"
$demo += "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
$demo += "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
$demo += "aaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
$demo += "bbbbbbbbbbbbbbbbbbbbbbbbbb"
$demo += "bb"