Pester

4.2.0-alpha1

Functions/TestResults.ps1

function Get-HumanTime($Seconds) {
    if($Seconds -gt 0.99) {
        $time = [math]::Round($Seconds, 2)
        $unit = 's'
    }
    else {
        $time = [math]::Floor($Seconds * 1000)
        $unit = 'ms'
    }
    return "$time$unit"
}

function GetFullPath ([string]$Path) {
    if (-not [System.IO.Path]::IsPathRooted($Path))
    {
        $Path = & $SafeCommands['Join-Path'] $ExecutionContext.SessionState.Path.CurrentFileSystemLocation $Path
    }

    return $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($Path)
}

function Export-PesterResults
{
    param (
        $PesterState,
        [string] $Path,
        [string] $Format
    )

    switch ($Format)
    {
        'NUnitXml'       { Export-NUnitReport -PesterState $PesterState -Path $Path }

        default
        {
            throw "'$Format' is not a valid Pester export format."
        }
    }
}
function Export-NUnitReport {
    param (
        [parameter(Mandatory=$true,ValueFromPipeline=$true)]
        $PesterState,

        [parameter(Mandatory=$true)]
        [String]$Path
    )

    #the xmlwriter create method can resolve relatives paths by itself. but its current directory might
    #be different from what PowerShell sees as the current directory so I have to resolve the path beforehand
    #working around the limitations of Resolve-Path

    $Path = GetFullPath -Path $Path

    $settings = & $SafeCommands['New-Object'] -TypeName Xml.XmlWriterSettings -Property @{
        Indent = $true
        NewLineOnAttributes = $false
    }

    $xmlFile = $null
    $xmlWriter = $null
    try {
        $xmlFile = [IO.File]::Create($Path)
        $xmlWriter = [Xml.XmlWriter]::Create($xmlFile, $settings)

        Write-NUnitReport -XmlWriter $xmlWriter -PesterState $PesterState

        $xmlWriter.Flush()
        $xmlFile.Flush()
    }
    finally
    {
        if ($null -ne $xmlWriter) {
            try { $xmlWriter.Close() } catch {}
        }
        if ($null -ne $xmlFile) {
            try { $xmlFile.Close() } catch {}
        }
    }
}

function Write-NUnitReport($PesterState, [System.Xml.XmlWriter] $XmlWriter)
{
    # Write the XML Declaration
    $XmlWriter.WriteStartDocument($false)

    # Write Root Element
    $xmlWriter.WriteStartElement('test-results')

    Write-NUnitTestResultAttributes @PSBoundParameters
    Write-NUnitTestResultChildNodes @PSBoundParameters

    $XmlWriter.WriteEndElement()
}

function Write-NUnitTestResultAttributes($PesterState, [System.Xml.XmlWriter] $XmlWriter)
{
    $XmlWriter.WriteAttributeString('xmlns','xsi', $null, 'http://www.w3.org/2001/XMLSchema-instance')
    $XmlWriter.WriteAttributeString('xsi','noNamespaceSchemaLocation', [Xml.Schema.XmlSchema]::InstanceNamespace , 'nunit_schema_2.5.xsd')
    $XmlWriter.WriteAttributeString('name','Pester')
    $XmlWriter.WriteAttributeString('total', ($PesterState.TotalCount - $PesterState.SkippedCount))
    $XmlWriter.WriteAttributeString('errors', '0')
    $XmlWriter.WriteAttributeString('failures', $PesterState.FailedCount)
    $XmlWriter.WriteAttributeString('not-run', '0')
    $XmlWriter.WriteAttributeString('inconclusive', $PesterState.PendingCount + $PesterState.InconclusiveCount)
    $XmlWriter.WriteAttributeString('ignored', $PesterState.SkippedCount)
    $XmlWriter.WriteAttributeString('skipped', '0')
    $XmlWriter.WriteAttributeString('invalid', '0')
    $date = & $SafeCommands['Get-Date']
    $XmlWriter.WriteAttributeString('date', (& $SafeCommands['Get-Date'] -Date $date -Format 'yyyy-MM-dd'))
    $XmlWriter.WriteAttributeString('time', (& $SafeCommands['Get-Date'] -Date $date -Format 'HH:mm:ss'))
}

function Write-NUnitTestResultChildNodes($PesterState, [System.Xml.XmlWriter] $XmlWriter)
{
    Write-NUnitEnvironmentInformation @PSBoundParameters
    Write-NUnitCultureInformation @PSBoundParameters

    $suiteInfo = Get-TestSuiteInfo -TestSuite $PesterState -TestSuiteName $PesterState.TestSuiteName

    $XmlWriter.WriteStartElement('test-suite')

    Write-NUnitTestSuiteAttributes -TestSuiteInfo $suiteInfo -XmlWriter $XmlWriter

    $XmlWriter.WriteStartElement('results')

    foreach ($action in $PesterState.TestActions.Actions)
    {
        Write-NUnitTestSuiteElements -XmlWriter $XmlWriter -Node $action
    }

    $XmlWriter.WriteEndElement()
    $XmlWriter.WriteEndElement()
}

function Write-NUnitEnvironmentInformation($PesterState, [System.Xml.XmlWriter] $XmlWriter)
{
    $XmlWriter.WriteStartElement('environment')

    $environment = Get-RunTimeEnvironment
    foreach ($keyValuePair in $environment.GetEnumerator()) {
        $XmlWriter.WriteAttributeString($keyValuePair.Name, $keyValuePair.Value)
    }

    $XmlWriter.WriteEndElement()
}

function Write-NUnitCultureInformation($PesterState, [System.Xml.XmlWriter] $XmlWriter)
{
    $XmlWriter.WriteStartElement('culture-info')

    $XmlWriter.WriteAttributeString('current-culture', ([System.Threading.Thread]::CurrentThread.CurrentCulture).Name)
    $XmlWriter.WriteAttributeString('current-uiculture', ([System.Threading.Thread]::CurrentThread.CurrentUiCulture).Name)

    $XmlWriter.WriteEndElement()
}

function Write-NUnitTestSuiteElements($Node, [System.Xml.XmlWriter] $XmlWriter, [string] $Path)
{
    $suiteInfo = Get-TestSuiteInfo $Node

    $XmlWriter.WriteStartElement('test-suite')

    Write-NUnitTestSuiteAttributes -TestSuiteInfo $suiteInfo -XmlWriter $XmlWriter

    $XmlWriter.WriteStartElement('results')

    $separator = if ($Path) { '.' } else { '' }
    $newName = if ($Node.Hint -ne 'Script') { $suiteInfo.Name } else { '' }
    $newPath = "${Path}${separator}${newName}"

    foreach ($action in $Node.Actions)
    {
        if ($action.Type -eq 'TestGroup')
        {
            Write-NUnitTestSuiteElements -Node $action -XmlWriter $XmlWriter -Path $newPath
        }
    }

    $suites = @(
        $Node.Actions |
        & $SafeCommands['Where-Object'] { $_.Type -eq 'TestCase' } |
        & $SafeCommands['Group-Object'] -Property ParameterizedSuiteName
    )

    foreach ($suite in $suites)
    {
        if ($suite.Name)
        {
            $parameterizedSuiteInfo = Get-ParameterizedTestSuiteInfo -TestSuiteGroup $suite

            $XmlWriter.WriteStartElement('test-suite')

            Write-NUnitTestSuiteAttributes -TestSuiteInfo $parameterizedSuiteInfo -TestSuiteType 'ParameterizedTest' -XmlWriter $XmlWriter -Path $newPath

            $XmlWriter.WriteStartElement('results')
        }

        foreach ($testCase in $suite.Group)
        {
            Write-NUnitTestCaseElement -TestResult $testCase -XmlWriter $XmlWriter -Path $newPath -ParameterizedSuiteName $suite.Name
        }

        if ($suite.Name)
        {
            $XmlWriter.WriteEndElement()
            $XmlWriter.WriteEndElement()
        }
    }

    $XmlWriter.WriteEndElement()
    $XmlWriter.WriteEndElement()
}

function Get-ParameterizedTestSuiteInfo ([Microsoft.PowerShell.Commands.GroupInfo] $TestSuiteGroup)
{
    $node = & $SafeCommands['New-Object'] psobject -Property @{
        Name              = $TestSuiteGroup.Name
        TotalCount        = 0
        Time              = [timespan]0
        PassedCount       = 0
        FailedCount       = 0
        SkippedCount      = 0
        PendingCount      = 0
        InconclusiveCount = 0
    }

    foreach ($testCase in $TestSuiteGroup.Group)
    {
        $node.TotalCount++

        switch ($testCase.Result)
        {
            Passed       { $Node.PassedCount++;       break; }
            Failed       { $Node.FailedCount++;       break; }
            Skipped      { $Node.SkippedCount++;      break; }
            Pending      { $Node.PendingCount++;      break; }
            Inconclusive { $Node.InconclusiveCount++; break; }
        }

        $Node.Time += $testCase.Time
    }

    return Get-TestSuiteInfo -TestSuite $node
}

function Get-TestSuiteInfo ($TestSuite, $TestSuiteName)
{
    if (-not $PSBoundParameters.ContainsKey('TestSuiteName')) { $TestSuiteName = $TestSuite.Name }

    $suite = @{
        resultMessage = 'Failure'
        success       = if ($TestSuite.FailedCount -eq 0) { 'True' } else { 'False' }
        totalTime     = Convert-TimeSpan $TestSuite.Time
        name          = $TestSuiteName
        description   = $TestSuiteName
    }

    $suite.resultMessage = Get-GroupResult $TestSuite
    $suite
}

function Get-TestTime($tests) {
    [TimeSpan]$totalTime = 0;
    if ($tests)
    {
        foreach ($test in $tests)
        {
            $totalTime += $test.time
        }
    }

    Convert-TimeSpan -TimeSpan $totalTime
}
function Convert-TimeSpan {
    param (
        [Parameter(ValueFromPipeline=$true)]
        $TimeSpan
    )
    process {
        if ($TimeSpan) {
            [string][math]::round(([TimeSpan]$TimeSpan).totalseconds,4)
        }
        else
        {
            '0'
        }
    }
}
function Get-TestSuccess($tests) {
    $result = $true
    if ($tests)
    {
        foreach ($test in $tests) {
            if (-not $test.Passed) {
                $result = $false
                break
            }
        }
    }
    [String]$result
}
function Write-NUnitTestSuiteAttributes($TestSuiteInfo, [string] $TestSuiteType = 'TestFixture', [System.Xml.XmlWriter] $XmlWriter, [string] $Path)
{
    $name = $TestSuiteInfo.Name

    if ($TestSuiteType -eq 'ParameterizedTest' -and $Path)
    {
        $name = "$Path.$name"
    }

    $XmlWriter.WriteAttributeString('type', $TestSuiteType)
    $XmlWriter.WriteAttributeString('name', $name)
    $XmlWriter.WriteAttributeString('executed', 'True')
    $XmlWriter.WriteAttributeString('result', $TestSuiteInfo.resultMessage)
    $XmlWriter.WriteAttributeString('success', $TestSuiteInfo.success)
    $XmlWriter.WriteAttributeString('time',$TestSuiteInfo.totalTime)
    $XmlWriter.WriteAttributeString('asserts','0')
    $XmlWriter.WriteAttributeString('description', $TestSuiteInfo.Description)
}

function Write-NUnitTestCaseElement($TestResult, [System.Xml.XmlWriter] $XmlWriter, [string] $ParameterizedSuiteName, [string] $Path)
{
    $XmlWriter.WriteStartElement('test-case')

    Write-NUnitTestCaseAttributes -TestResult $TestResult -XmlWriter $XmlWriter -ParameterizedSuiteName $ParameterizedSuiteName -Path $Path

    $XmlWriter.WriteEndElement()
}

function Write-NUnitTestCaseAttributes($TestResult, [System.Xml.XmlWriter] $XmlWriter, [string] $ParameterizedSuiteName, [string] $Path)
{
    $testName = $TestResult.Name

    if ($testName -eq $ParameterizedSuiteName)
    {
        $paramString = ''
        if ($null -ne $TestResult.Parameters)
        {
            $params = @(
                foreach ($value in $TestResult.Parameters.Values)
                {
                    if ($null -eq $value)
                    {
                        'null'
                    }
                    elseif ($value -is [string])
                    {
                        '"{0}"' -f $value
                    }
                    else
                    {
                        #do not use .ToString() it uses the current culture settings
                        #and we need to use en-US culture, which [string] or .ToString([Globalization.CultureInfo]'en-us') uses
                        [string]$value
                    }
                }
            )

            $paramString = $params -join ','
        }

        $testName = "$testName($paramString)"
    }

    $separator = if ($Path) { '.' } else { '' }
    $testName = "${Path}${separator}${testName}"

    $XmlWriter.WriteAttributeString('description', $TestResult.Name)

    $XmlWriter.WriteAttributeString('name', $testName)
    $XmlWriter.WriteAttributeString('time', (Convert-TimeSpan $TestResult.Time))
    $XmlWriter.WriteAttributeString('asserts', '0')
    $XmlWriter.WriteAttributeString('success', $TestResult.Passed)

    switch ($TestResult.Result)
    {
        Passed
        {
            $XmlWriter.WriteAttributeString('result', 'Success')
            $XmlWriter.WriteAttributeString('executed', 'True')
            break
        }
        Skipped
        {
            $XmlWriter.WriteAttributeString('result', 'Ignored')
            $XmlWriter.WriteAttributeString('executed', 'False')
            break
        }

        Pending
        {
            $XmlWriter.WriteAttributeString('result', 'Inconclusive')
            $XmlWriter.WriteAttributeString('executed', 'True')
            break
        }
        Inconclusive
        {
            $XmlWriter.WriteAttributeString('result', 'Inconclusive')
            $XmlWriter.WriteAttributeString('executed', 'True')

            if ($TestResult.FailureMessage)
            {
                $XmlWriter.WriteStartElement('reason')
                $xmlWriter.WriteElementString('message', $TestResult.FailureMessage)
                $XmlWriter.WriteEndElement() # Close reason tag
            }

            break
        }
        Failed
        {
            $XmlWriter.WriteAttributeString('result', 'Failure')
            $XmlWriter.WriteAttributeString('executed', 'True')
            $XmlWriter.WriteStartElement('failure')
            $xmlWriter.WriteElementString('message', $TestResult.FailureMessage)
            $XmlWriter.WriteElementString('stack-trace', $TestResult.StackTrace)
            $XmlWriter.WriteEndElement() # Close failure tag
            break
        }
    }
}
function Get-RunTimeEnvironment() {
    # based on what we found during startup, use the appropriate cmdlet
    if ( $SafeCommands['Get-CimInstance'] -ne $null )
    {
        $osSystemInformation = (& $SafeCommands['Get-CimInstance'] Win32_OperatingSystem)
    }
    elseif ( $SafeCommands['Get-WmiObject'] -ne $null )
    {
        $osSystemInformation = (& $SafeCommands['Get-WmiObject'] Win32_OperatingSystem)
    }
    else
    {
        $osSystemInformation = @{
            Name = "Unknown"
            Version = "0.0.0.0"
            }
    }

    If ( ($PSVersionTable.ContainsKey('PSEdition')) -and ($PSVersionTable.PSEdition -EQ 'Core')) {

        $CLrVersion = "Unknown"

    }
    Else {

        $CLrVersion = [string]$PSVersionTable.ClrVersion

    }

    @{
        'nunit-version' = '2.5.8.0'
        'os-version' = $osSystemInformation.Version
        platform = $osSystemInformation.Name
        cwd = (& $SafeCommands['Get-Location']).Path #run path
        'machine-name' = $env:ComputerName
        user = $env:Username
        'user-domain' = $env:userDomain
        'clr-version' = $CLrVersion
    }
}

function Exit-WithCode ($FailedCount) {
    $host.SetShouldExit($FailedCount)
}

function Get-GroupResult ($InputObject)
{
    #I am not sure about the result precedence, and can't find any good source
    #TODO: Confirm this is the correct order of precedence
    if ($inputObject.FailedCount  -gt 0) { return 'Failure' }
    if ($InputObject.SkippedCount -gt 0) { return 'Ignored' }
    if ($InputObject.PendingCount -gt 0) { return 'Inconclusive' }
    return 'Success'
}