tests/pester.ps1

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param (
    $TestGeneral = $true,
    
    $TestFunctions = $true,
    
    [ValidateSet('None', 'Default', 'Passed', 'Failed', 'Pending', 'Skipped', 'Inconclusive', 'Describe', 'Context', 'Summary', 'Header', 'Fails', 'All')]
    $Show = "None",
    
    $Include = "*",
    
    $Exclude = ""
)

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

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

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

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

$totalFailed = 0
$totalRun = 0

$testresults = @()

#region Run General Tests
if ($TestGeneral)
{
    Write-PSFMessage -Level Important -Message "Modules imported, proceeding with general tests"
    foreach ($file in (Get-ChildItem "$PSScriptRoot\general" -Filter "*.Tests.ps1"))
    {
        Write-PSFMessage -Level Significant -Message " Executing <c='em'>$($file.Name)</c>"
        $TestOuputFile = Join-Path "$PSScriptRoot\..\..\TestResults" "TEST-$($file.BaseName).xml"
    $results = Invoke-Pester -Script $file.FullName -Show $Show -PassThru -OutputFile $TestOuputFile -OutputFormat NUnitXml
        foreach ($result in $results)
        {
            $totalRun += $result.TotalCount
            $totalFailed += $result.FailedCount
            $result.TestResult | Where-Object { -not $_.Passed } | ForEach-Object {
                $name = $_.Name
                $testresults += [pscustomobject]@{
                    Describe = $_.Describe
                    Context  = $_.Context
                    Name     = "It $name"
                    Result   = $_.Result
                    Message  = $_.FailureMessage
                }
            }
        }
    }
}
#endregion Run General Tests

#region Test Commands
if ($TestFunctions)
{
Write-PSFMessage -Level Important -Message "Proceeding with individual tests"
    foreach ($file in (Get-ChildItem "$PSScriptRoot\functions" -Recurse -File -Filter "*Tests.ps1"))
    {
        if ($file.Name -notlike $Include) { continue }
        if ($file.Name -like $Exclude) { continue }
        
        Write-PSFMessage -Level Significant -Message " Executing $($file.Name)"
        $TestOuputFile = Join-Path "$PSScriptRoot\..\..\TestResults" "TEST-$($file.BaseName).xml"
    $results = Invoke-Pester -Script $file.FullName -Show $Show -PassThru -OutputFile $TestOuputFile -OutputFormat NUnitXml
        foreach ($result in $results)
        {
            $totalRun += $result.TotalCount
            $totalFailed += $result.FailedCount
            $result.TestResult | Where-Object { -not $_.Passed } | ForEach-Object {
                $name = $_.Name
                $testresults += [pscustomobject]@{
                    Describe = $_.Describe
                    Context  = $_.Context
                    Name     = "It $name"
                    Result   = $_.Result
                    Message  = $_.FailureMessage
                }
            }
        }
    }
}
#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!"
}