samples/InModule.Help.Tests.ps1
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<# .NOTES =========================================================================== Created with: SAPIEN Technologies, Inc., PowerShell Studio 2016 v5.2.119 Created on: 4/12/2016 1:11 PM Created by: June Blender Organization: SAPIEN Technologies, Inc Filename: *.Help.Tests.ps1 =========================================================================== .DESCRIPTION To test help for the commands in a module, place this file in the module folder. To test any module from any path, use https://github.com/juneb/PesterTDD/Module.Help.Tests.ps1 #> $ModuleBase = Split-Path -Parent $MyInvocation.MyCommand.Path # For tests in .\Tests subdirectory if ((Split-Path $ModuleBase -Leaf) -eq 'Tests') { $ModuleBase = Split-Path $ModuleBase -Parent } # Handles modules in version directories $leaf = Split-Path $ModuleBase -Leaf $parent = Split-Path $ModuleBase -Parent $parsedVersion = $null if ([System.Version]::TryParse($leaf, [ref]$parsedVersion)) { $ModuleName = Split-Path $parent -Leaf } else { $ModuleName = $leaf } # Removes all versions of the module from the session before importing Get-Module $ModuleName | Remove-Module # Because ModuleBase includes version number, this imports the required version # of the module $Module = Import-Module $ModuleBase\$ModuleName.psd1 -PassThru -ErrorAction Stop $commands = Get-Command -Module $module -CommandType Cmdlet, Function, Workflow # Not alias ## When testing help, remember that help is cached at the beginning of each session. ## To test, restart session. foreach ($command in $commands) { $commandName = $command.Name # The module-qualified command fails on Microsoft.PowerShell.Archive cmdlets $Help = Get-Help $commandName -ErrorAction SilentlyContinue Describe "Test help for $commandName" { # If help is not found, synopsis in auto-generated help is the syntax diagram It "should not be auto-generated" { $Help.Synopsis | Should Not BeLike '*`[`<CommonParameters`>`]*' } # Should be a description for every function It "gets description for $commandName" { $Help.Description | Should Not BeNullOrEmpty } # Should be at least one example It "gets example code from $commandName" { ($Help.Examples.Example | Select-Object -First 1).Code | Should Not BeNullOrEmpty } # Should be at least one example description It "gets example help from $commandName" { ($Help.Examples.Example.Remarks | Select-Object -First 1).Text | Should Not BeNullOrEmpty } Context "Test parameter help for $commandName" { $Common = 'Debug', 'ErrorAction', 'ErrorVariable', 'InformationAction', 'InformationVariable', 'OutBuffer', 'OutVariable', 'PipelineVariable', 'Verbose', 'WarningAction', 'WarningVariable' $parameters = $command.ParameterSets.Parameters | Sort-Object -Property Name -Unique | Where-Object { $_.Name -notin $common } $parameterNames = $parameters.Name $HelpParameterNames = $Help.Parameters.Parameter.Name | Sort-Object -Unique foreach ($parameter in $parameters) { $parameterName = $parameter.Name $parameterHelp = $Help.parameters.parameter | Where-Object Name -EQ $parameterName # Should be a description for every parameter It "gets help for parameter: $parameterName : in $commandName" { $parameterHelp.Description.Text | Should Not BeNullOrEmpty } # Required value in Help should match IsMandatory property of parameter It "help for $parameterName parameter in $commandName has correct Mandatory value" { $codeMandatory = $parameter.IsMandatory.toString() $parameterHelp.Required | Should Be $codeMandatory } # Parameter type in Help should match code It "help for $commandName has correct parameter type for $parameterName" { $codeType = $parameter.ParameterType.Name # To avoid calling Trim method on a null object. $helpType = if ($parameterHelp.parameterValue) { $parameterHelp.parameterValue.Trim() } $helpType | Should be $codeType } } foreach ($helpParm in $HelpParameterNames) { # Shouldn't find extra parameters in help. It "finds help parameter in code: $helpParm" { $helpParm -in $parameterNames | Should Be $true } } } } } |