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Pester-Watch
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| param([switch] $Start) | |
| function New-FileSystemWatcher( | |
| [Parameter(Mandatory)][ValidateNotNullOrEmpty()] [string] $TargetFile, | |
| [Parameter(Mandatory)][ValidateNotNull()] [ScriptBlock] $Action | |
| ) { | |
| $fullPath = Resolve-Path $TargetFile | |
| $fsw= New-Object System.IO.FileSystemWatcher | |
| $fsw.Path = (Split-Path $fullPath -Parent) | |
| $fsw.Filter = (SPlit-Path $FullPath -Leaf) | |
| $fsw.NotifyFilter = [IO.NotifyFilters]::LastWrite | |
| Register-ObjectEvent -InputObject $fsw ` | |
| -EventName Changed ` | |
| -Action $Action | Out-Null | |
| return $fsw | |
| } | |
| function Find-AssociatedTestFile ( | |
| [Alias("FullName")] | |
| [Parameter(Mandatory, ValueFromPipeline, ValueFromPipelineByPropertyName)] | |
| [ValidateNotNullOrEmpty()] | |
| [string] $FullPath) { | |
| $fileInfo = New-Object IO.FileInfo $FullPath | |
| $TestFileName = "$($FileInfo.BaseName).Tests.ps1" | |
| gci -path "./module/tests" -filter $TestFileName -recurse | |
| } | |
| function New-WatchList() { | |
| gci -path "./Module/Functions" -filter *.ps1 -recurse ` | |
| | %{ | |
| return [PsCustomObject] @{ | |
| "SourceFile" = $_.FullName; | |
| "TestFile" = ($_ | Find-AssociatedTestFile).FullName | |
| } | |
| } ` | |
| | ?{ $_.SourceFile -and $_.TestFile }; | |
| } | |
| function Save-WatchList([Parameter(Mandatory)][ValidateNotNull()][array] $Array) { | |
| [System.AppDomain]::Currentdomain.SetData("Posh-Watch:WatchList", $Array) | |
| } | |
| function Get-WatchList() { | |
| [System.AppDomain]::Currentdomain.GetData("Posh-Watch:WatchList") | |
| } | |
| $OnSourceFileChanged = { | |
| param($sender, $e) | |
| # | |
| # It is necessary to reproduce this function here as the parent closure will | |
| # not be available during the event. | |
| # | |
| function Find-AssociatedTestFile ( | |
| [string] $FullPath) { | |
| $fileInfo = New-Object IO.FileInfo $FullPath | |
| $TestFileName = "$($FileInfo.BaseName).Tests.ps1" | |
| gci -path "./module/tests" -filter $TestFileName -recurse | |
| } | |
| $TestFile = Find-AssociatedTestFIle -FullPath $e.FullPath | |
| Invoke-Pester -Script $TestFile.FullName | |
| } | |
| $OnTestFileChanged = { | |
| param($sender, $e) | |
| Invoke-Pester -Script $e.FullPath | |
| } | |
| function Start-Watch() { | |
| $watchers = @() | |
| Save-WatchList (New-WatchList) | Out-Null | |
| Get-WatchList | %{ | |
| $Watchers += New-FileSystemWatcher -TargetFile $_.SourceFile -Action $OnSourceFileChanged | |
| $Watchers += New-FileSystemWatcher -TargetFile $_.TestFile -Action $OnTestFileChanged | |
| } | |
| write-host "Monitoring $($Watchers.Count) files..." | |
| try { | |
| while ($true) { | |
| # infinite loop to wait | |
| } | |
| } finally { | |
| write-host "Ending monitoring." | |
| Get-EventSubscriber | Unregister-Event | |
| } | |
| } | |
| if ($Start) { | |
| Start-Watch | |
| } |
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