Public/Test-PSBuildPester.ps1
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function Test-PSBuildPester { <# .SYNOPSIS Execute Pester tests for module. .DESCRIPTION Execute Pester tests for module. .PARAMETER Path Directory Pester tests to execute. .PARAMETER ModuleName Name of Module to test. .PARAMETER OutputPath Output path to store Pester test results to. .PARAMETER OutputFormat Test result output format (NUnit). .PARAMETER CodeCoverage Switch to indicate that code coverage should be calculated. .PARAMETER CodeCoverageThreshold Threshold required to pass code coverage test (.90 = 90%). .PARAMETER CodeCoverageFiles Array of files to validate code coverage for. .EXAMPLE PS> Test-PSBuildPester -Path ./tests -ModuleName Mymodule -OutputPath ./out/testResults.xml Run Pester tests in ./tests and save results to ./out/testResults.xml #> [cmdletbinding()] param( [parameter(Mandatory)] [string]$Path, [string]$ModuleName, [string]$OutputPath, [string]$OutputFormat = 'NUnitXml', [switch]$CodeCoverage, [double]$CodeCoverageThreshold, [string[]]$CodeCoverageFiles = @() ) if (-not (Get-Module -Name Pester)) { Import-Module -Name Pester -ErrorAction Stop } try { Push-Location -LiteralPath $Path $pesterParams = @{ PassThru = $true Verbose = $VerbosePreference } if (-not [string]::IsNullOrEmpty($OutputPath)) { $pesterParams = @{ OutputFile = $OutputPath OutputFormat = $OutputFormat } } # To control the Pester code coverage, a boolean $CodeCoverageEnabled is used. if ($CodeCoverage.IsPresent) { $pesterParams.CodeCoverage = $CodeCoverageFiles } $testResult = Invoke-Pester @pesterParams if ($testResult.FailedCount -gt 0) { throw 'One or more Pester tests failed' } if ($CodeCoverage.IsPresent) { $testCoverage = [int]($testResult.CodeCoverage.NumberOfCommandsExecuted / $testResult.CodeCoverage.NumberOfCommandsAnalyzed) 'Pester code coverage on specified files: {0:p}' -f $testCoverage if ($testCoverage -lt $CodeCoverageThreshold) { throw 'Code coverage is less than threshold of {0:p}' -f $CodeCoverageThreshold } } } finally { Pop-Location Remove-Module $ModuleName -ErrorAction SilentlyContinue } } |