Get-Help -Parameter does not correctly set PSTypeName when one parameter is declared #8697
Description
Steps to reproduce
function test {
<#
.SYNOPSIS
Synopsis
.DESCRIPTION
Description
.EXAMPLE
test -First 1
#>
param (
# First
$First
)
}
Get-Help test -Parameter First
(Get-Help test -Parameter First).PSTypeNamesExpected behavior
Expected to display:
-First <Object>
First
Required? false
Position? 1
Default value
Accept pipeline input? false
Accept wildcard characters? false
MamlCommandHelpInfo#parameter
Actual behavior
type : @{name=Object}
parameterValue : Object
description : {@{Text=First}}
defaultValue :
name : First
required : false
globbing : false
pipelineInput : false
position : 1
System.Management.Automation.PSCustomObject
System.Object
Environment data
Name Value
---- -----
PSVersion 6.2.0-preview.3
PSEdition Core
GitCommitId 6.2.0-preview.3
OS Microsoft Windows 10.0.17134
Platform Win32NT
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0
Other information
The problem exhibits for both basic and advanced functions. It applies whether the parameter help is written above the parameter (as in the example), or using the .PARAMETER <Name> tag in CBH.
This problem exhibits in PowerShell 5.1 as well. It is inherited, not unique to Core. But it could be fixed here at least.