tests/pester.ps1

param (
    $TestGeneral = $true,
    
    $TestFunctions = $true,
    
    [ValidateSet('None', 'Normal', 'Detailed', 'Diagnostic')]
    [Alias('Show')]
    $Output = "None",
    
    $Include = "*",
    
    $Exclude = "",

    [switch]
    $MockADModule
)

Write-PSFMessage -Level Important -Message "Starting Tests"

Write-PSFMessage -Level Important -Message "Importing Module"

# Fake AD Module for automated testing in AzDev
if ($env:SYSTEM_DEFAULTWORKINGDIRECTORY -or $MockADModule)
{
    New-Module -Name ActiveDirectory -ScriptBlock { } | Import-Module
}

$global:testroot = $PSScriptRoot
$global:__pester_data = @{ }

Remove-Module krbtgt -ErrorAction Ignore
Import-Module "$PSScriptRoot\..\krbtgt.psd1"
Import-Module "$PSScriptRoot\..\krbtgt.psm1" -Force

# Need to import explicitly so we can use the configuration class
Import-Module Pester

Write-PSFMessage -Level Important -Message "Creating test result folder"
$null = New-Item -Path "$PSScriptRoot\..\.." -Name TestResults -ItemType Directory -Force

$totalFailed = 0
$totalRun = 0

$testresults = @()
$config = [PesterConfiguration]::Default
$config.TestResult.Enabled = $true

#region Run General Tests
if ($TestGeneral)
{
    Write-PSFMessage -Level Important -Message "Modules imported, proceeding with general tests"
    foreach ($file in (Get-ChildItem "$PSScriptRoot\general" | Where-Object Name -like "*.Tests.ps1"))
    {
        if ($file.Name -notlike $Include) { continue }
        if ($file.Name -like $Exclude) { continue }
        
        Write-PSFMessage -Level Significant -Message " Executing <c='em'>$($file.Name)</c>"
        $config.TestResult.OutputPath = Join-Path "$PSScriptRoot\..\..\TestResults" "TEST-$($file.BaseName).xml"
        $config.Run.Path = $file.FullName
        $config.Run.PassThru = $true
        $config.Output.Verbosity = $Output
        $results = Invoke-Pester -Configuration $config
        foreach ($result in $results)
        {
            $totalRun += $result.TotalCount
            $totalFailed += $result.FailedCount
            $result.Tests | Where-Object Result -ne 'Passed' | ForEach-Object {
                $testresults += [pscustomobject]@{
                    Block = $_.Block
                    Name  = "It $($_.Name)"
                    Result = $_.Result
                    Message = $_.ErrorRecord.DisplayErrorMessage
                }
            }
        }
    }
}
#endregion Run General Tests

$global:__pester_data.ScriptAnalyzer | Out-Host

#region Test Commands
if ($TestFunctions)
{
    Write-PSFMessage -Level Important -Message "Proceeding with individual tests"
    foreach ($file in (Get-ChildItem "$PSScriptRoot\functions" -Recurse -File | Where-Object Name -like "*Tests.ps1"))
    {
        if ($file.Name -notlike $Include) { continue }
        if ($file.Name -like $Exclude) { continue }
        
        Write-PSFMessage -Level Significant -Message " Executing $($file.Name)"
        $config.TestResult.OutputPath = Join-Path "$PSScriptRoot\..\..\TestResults" "TEST-$($file.BaseName).xml"
        $config.Run.Path = $file.FullName
        $config.Run.PassThru = $true
        $config.Output.Verbosity = $Output
        $results = Invoke-Pester -Configuration $config
        foreach ($result in $results)
        {
            $totalRun += $result.TotalCount
            $totalFailed += $result.FailedCount
            $result.Tests | Where-Object Result -ne 'Passed' | ForEach-Object {
                $testresults += [pscustomobject]@{
                    Block = $_.Block
                    Name  = "It $($_.Name)"
                    Result = $_.Result
                    Message = $_.ErrorRecord.DisplayErrorMessage
                }
            }
        }
    }
}
#endregion Test Commands

$testresults | Sort-Object Describe, Context, Name, Result, Message | Format-List

if ($totalFailed -eq 0) { Write-PSFMessage -Level Critical -Message "All <c='em'>$totalRun</c> tests executed without a single failure!" }
else { Write-PSFMessage -Level Critical -Message "<c='em'>$totalFailed tests</c> out of <c='sub'>$totalRun</c> tests failed!" }

if ($totalFailed -gt 0)
{
    throw "$totalFailed / $totalRun tests failed!"
}