Remove-JiraGroupMember fails

[stevenyoungs]

Description

Calling Remove-JiraGroupMember with valid strings for Group and User, where both group and user do exist, fails with

Get-JiraUser : The variable cannot be validated because the value $null is not a valid value for the UserName variable.

The exact line I'm using is as follows:

Remove-JiraGroupMember -Group "ValidGroupName" -User "ValidUserName" -Force -Credential $Credential

$Credential is a valid PSCredential

Steps To Reproduce

Run the following Powershell script where $Credential is a valid PSCredential for your JIRA server with admin rights.

1. $Session = New-JiraSession -Credential $Credential
2. Remove-JiraGroupMember -Group "ValidGroupName" -User "ValidUserName" -Force -Credential $Credential

Expected behavior

No error, and the user is removed from membership of the JIRA group

Your Environment

JiraPS 2.8.0
Windows 10
PSVersion 5.1
JIRA 7.5.0

Get-Module JiraPS -ListAvailable | select version

Version
-------
2.8.0
2.4.4

$PSVersionTable

Name                           Value
----                           -----
PSVersion                      5.1.17134.137
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.17134.137
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Possible Solution

The problem may be inside Remove-JiraGroupMember where Get-JiraUser is called like so:

$userObj = Get-JiraUser -InputObject $_user -Credential $Credential -ErrorAction Stop

in my case $_user is a string not a JiraPs.User. Inside Get-JiraUser an attempt is made to get the field
$_user.Name with no check on the type of $_user

In v2.4.4, Get-JiraUser checked the supplied user name was of type JiraPS.User

if ((Get-Member -InputObject $i).TypeName -eq 'JiraPS.User')
and if not, assumed calling .ToString() would yield the username