HiddenString.Tests.ps1
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#Requires -Modules @{ModuleName="Pester"; ModuleVersion="5.0.0"} Describe 'Join-Object' { BeforeAll { Set-StrictMode -Version Latest . $PSScriptRoot\HiddenString.ps1 $Secret = 'Confidential information' } Context 'General tests' { BeforeEach { $HiddenSecret = [HiddenString]$Secret } It 'Hide' { $HiddenSecret |Should -Be HiddenString } It 'Reveal' { $HiddenSecret.Reveal() |Should -Be $Secret } It 'Clear' { $HiddenSecret.Clear() $HiddenSecret.Reveal() |Should -BeNullOrEmpty } It 'Add' { $HiddenSecret = [HiddenString]::new() $HiddenSecret.Add($Secret) $HiddenSecret.Reveal() |Should -Be $Secret } It 'Equals' { $HiddenSecret -eq $HiddenSecret |Should -be $True $HiddenString = [HiddenString]'Something else' $HiddenSecret -eq $HiddenString |Should -be $False } It 'Length' { $HiddenSecret.Length |Should -be $Secret.Length } } Context 'Use cases' { It 'Hidden parameter' { $Actual = $Null function BadApp([String]$Username, [String]$Password) { ([ref]$Actual).Value = $Password } function MyScript { [CmdletBinding()] param( [String]$Username, [HiddenString]$Password ) Write-Host "Credentials: $Username/$Password" # Write-Log ... BadApp $Username $Password.Reveal() } Start-Transcript -Path $PSScriptRoot\Transcript.txt MyScript JohnDoe $Secret -WarningAction SilentlyContinue Stop-Transcript $Actual |Should -Be $Secret Get-Content -Path $PSScriptRoot\Transcript.txt |Should -Not -Contain $Secret } It 'From base64 cypher' { $HiddenSecret = [HiddenString]$Secret $Cypher = $HiddenSecret.ToBase64Cypher() $HiddenSecret = [HiddenString][System.Convert]::FromBase64String($Cypher) $HiddenSecret.Reveal() |Should -Be $Secret $HiddenSecret = [HiddenString]::FromBase64Cypher($Cypher) $HiddenSecret.Reveal() |Should -Be $Secret } it 'Convert to SecureString' { $HiddenPassword = [HiddenString]$Secret $Credential = New-Object System.Management.Automation.PSCredential ('UserName', $HiddenPassword) $Password = ([HiddenString]$Credential.Password).Reveal() $Password |Should -Be $Secret } } } |