. $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-SecurePassword" {

    Mock -CommandName Get-AWSRegion         -ModuleName $moduleForMock -MockWith { return @( @{ 'Region' = 'us-east-1' } ) }
    Mock -CommandName Import-AWSModule      -ModuleName $moduleForMock -MockWith {}
    Mock -CommandName Get-SECRandomPassword -ModuleName $moduleForMock -MockWith { return "Ab1!" }

    Context "Parameter Validation" {

        It "Throws if Password Length Is Too Short" {
            { New-SecurePassword -PasswordLength 1 -ProfileName 'temp-prod' -Region 'us-east-1' } | Should -Throw
        }

        It "Throws if Password Length Is Too Long" {
            { New-SecurePassword -PasswordLength 129 -ProfileName 'temp-prod' -Region 'us-east-1'} | Should -Throw
        }

        It "Throws if Profile Name is Null" {
            { New-SecurePassword -ProfileName $null -Region 'us-east-1' } | Should -Throw
        }

        It "Throws if Profile Name is Empty" {
            { New-SecurePassword -ProfileName '' -Region 'us-east-1' } | Should -Throw
        }

        It "Throws if Region is Not in Supported List" {
            { New-SecurePassword -ProfileName 'temp-prod' -Region 'Test' } | Should -Throw
        }
    }

    Context "Logic" {

        It "Returns a String" {

            (Get-Command New-SecurePassword).OutputType.Type.ToString() | Should -BeExactly "System.String"
        }

        It "Proxies Input Parameters to AWS Call" {
            New-SecurePassword -PasswordLength 20 -ExcludeCharacter "1" -ProfileName 'temp-prod' -Region 'us-east-1' | Out-Null

            Assert-MockCalled -ModuleName $moduleForMock -CommandName Get-SECRandomPassword -Times 1 -Exactly -Scope It `
                -ParameterFilter { (( $ProfileName -eq 'temp-prod' ) -and ( $Region -eq 'us-east-1' ) -and ( $PasswordLength -eq 20 ) -and ($ExcludeCharacter -eq '1')) }
        }
    }
}