. $PSScriptRoot\..\..\Load-PesterModules.ps1
$here = Split-Path -Parent $MyInvocation.MyCommand.Path
$sut = (Split-Path -Leaf $MyInvocation.MyCommand.Path) -replace '\.tests\.', '.'
$functionPath = Join-Path -Path $here -ChildPath $sut
Write-Host "Overriding SUT: $functionPath"
Import-Module $functionPath -Force
$moduleForMock = ""

Describe "New-SftpPasswordHash" {

    $fakePassword = "ThisIsAPassword"

    Mock -CommandName Get-LogLeadName  -ModuleName $moduleForMock -MockWith { return 'New-SftpPasswordHash.tests' }
    Mock -CommandName Write-Error      -ModuleName $moduleForMock -MockWith {}
    Mock -CommandName Invoke-Command   -ModuleName $moduleForMock -MockWith {}
    Mock -CommandName New-PSSession    -ModuleName $moduleForMock -MockWith {}
    Mock -CommandName Remove-PSSession -ModuleName $moduleForMock -MockWith {}

    Context "Error Handling" {

        Mock -CommandName Test-Path -ModuleName $moduleForMock -MockWith { return $false }

        It "Writes Error and Returns Null If Password Hash DLL Not Found" {

            New-SftpPasswordHash -Password $fakePassword | Should -BeNull

            Assert-MockCalled -CommandName Write-Error `
                -ParameterFilter { $Message -match "Unable to find EncryptPassword.dll" } -Times 1 -Exactly -Scope It
            Assert-MockCalled -CommandName Invoke-Command -Times 0 -Exactly -Scope It
        }
    }
}