Public/New-PSPesterTest.ps1

<#
.SYNOPSIS
Creates a new Pester Test file.
 
.DESCRIPTION
Function to scaffold the structure of a test file for Pester tests.
 
.PARAMETER Name
<String> The name of the function to create a test for.
 
.PARAMETER Module
<String> The name of a module, or the parent path of a module manifest.
 
.PARAMETER Scope
<String> The scope of the function according to Redeploy scaffolding standards. Allowed values: Private and Public. Default: Public.
 
.EXAMPLE
To create a new Pester test for the function New-Action in Module 'MyModule', by Module name, and place it in the public scope.
 
New-REPesterTest -Name New-Action -Module MyModule
 
.EXAMPLE
To create a new Pester test for the function New-Action in Module 'MyModule', by Module path, and place it in the public scope.
 
New-PSPesterTest -Name New-Action -Module C:\Users\JohnSmith\Documents\Projects\Modules\MyModule
 
.NOTES
    Written by Karl Wallenius, Redeploy AB.
#>

function New-PSPesterTest {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $True, Position = 0)]
        [string]
        $Name,
        [Parameter(Mandatory = $False, Position = 1)]
        [string]
        $Module,
        [Parameter(Mandatory = $False, Position = 2)]
        [ValidateSet('Private', 'Public')]
        [string]
        $Scope = "Public"
    )

    process {

        . "$PSScriptRoot\..\templates\t_pestertest.ps1"

        $modulePath = $null 

        if ($Module.Contains("\")) {
            if (!(Test-Path $Module)) {
                throw "A module with that path does not exist."
            }
            $modulePath = $Module.Trim("\")
        } else {

            if ($Module -eq ".") {
                $path = (Resolve-Path $Module).Path
            } else {
                $path = (Get-Location).Path
            }

            $modulePath = $path 
        }
        
        $fileName = $Name + ".Tests.ps1"
        $filePath = $modulePath + "\Tests\$Scope\$fileName"
        $moduleName = Split-Path $modulePath -Leaf

        Write-Verbose "Creating test file template..."
        $PesterFileContent -replace "<module>", "$moduleName" -replace "<scope>","$Scope" -replace "<name>", "$Name" | Out-File $filePath -Encoding utf8
        Write-Verbose "Test file template is done."
    }
}