Pester Test file created, one test fails

Tests/xComputermanagement.Tests.ps1

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+$Module = "$PSScriptRoot\..\DSCResources\MSFT_xComputer\MSFT_xComputer.psm1"
+Remove-Module -Name MSFT_xComputer -Force -ErrorAction SilentlyContinue
+Import-Module -Name $Module -Force -ErrorAction Stop
+
+InModuleScope MSFT_xComputer {
+
+    Describe 'xComputermanagement' {
+
+        #$VerbosePreference = 'Continue'
+
+        $SecPassword = ConvertTo-SecureString -String 'password' -AsPlainText -Force
+        $Credential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList 'USER',$SecPassword
+        $NotComputerName  = if($env:COMPUTERNAME -ne 'othername'){'othername'}else{'name'}
+
+        Context Test-TargetResource {
+            Mock Get-WMIObject {[PSCustomObject]@{DomainName = 'ContosoLtd'}} -ParameterFilter {$Class -eq 'Win32_NTDomain'}
+            It 'Throws if both DomainName and WorkGroupName are specified' {
+                {Test-TargetResource -Name $Env:ComputerName -DomainName 'contoso.com' -WorkGroupName 'workgroup'} | Should Throw
+            }
+            It 'Throws if Domain is specified without Credentials' {
+                {Test-TargetResource -Name $Env:ComputerName -DomainName 'contoso.com'} | Should Throw
+            }
+            It 'Should return True if Domain name is same as specified' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {'contoso.com'}
+                Test-TargetResource -Name $Env:ComputerName -DomainName 'Contoso.com' -Credential $Credential | Should Be $true
+            }
+            It 'Should return True if Workgroup name is same as specified' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Workgroup';Workgroup='Workgroup';PartOfDomain=$false}}
+                Mock GetComputerDomain {''}
+                Test-TargetResource -Name $Env:ComputerName -WorkGroupName 'workgroup' | Should Be $true
+            }
+            It 'Should return True if ComputerName and Domain name is same as specified' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {'contoso.com'}
+                Test-TargetResource -Name $Env:ComputerName -DomainName 'contoso.com' -Credential $Credential | Should Be $true
+            }
+            It 'Should return True if ComputerName and Workgroup is same as specified' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Workgroup';Workgroup='Workgroup';PartOfDomain=$false}}
+                Mock GetComputerDomain {''}
+                Test-TargetResource -Name $Env:ComputerName -WorkGroupName 'workgroup' | Should Be $true
+            }
+            It 'Should return True if current Domain flat name (Netbios) is specified' {
+                Mock GetComputerDomain {'contoso.com'}
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'contoso.com';Workgroup='contoso.com';PartOfDomain=$true}}
+                Test-TargetResource -Name $Env:ComputerName -DomainName 'contosoltd' -Credential $Credential | Should Be $true
+            }
+            It 'Should return False if Domain name is not same as specified' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {'contoso.com'}
+                Test-TargetResource -Name $Env:ComputerName -DomainName 'adventure-works.com' -Credential $Credential  | Should Be $false
+            }
+            It 'Should return False if Workgroup name is not same as specified' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Workgroup';Workgroup='Workgroup';PartOfDomain=$false}}
+                Mock GetComputerDomain {''}
+                Test-TargetResource -Name $Env:ComputerName -WorkGroupName 'NOTworkgroup' | Should Be $false
+            }
+            It 'Should return False if ComputerName is not same as specified' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Workgroup';Workgroup='Workgroup';PartOfDomain=$false}}
+                Mock GetComputerDomain {''}
+                Test-TargetResource -Name $NotComputerName -WorkGroupName 'workgroup' | Should Be $false
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {'contoso.com'}
+                Test-TargetResource -Name $NotComputerName -DomainName 'contoso.com' -Credential $Credential | Should Be $false
+            }
+            It 'Should return False if Computer is in Workgroup and Domain is specified' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso';Workgroup='Contoso';PartOfDomain=$false}}
+                Mock GetComputerDomain {''}
+                Test-TargetResource -Name $Env:ComputerName -DomainName 'contoso.com' -Credential $Credential | Should Be $false
+            }
+            It 'Should return False if ComputerName is in Domain and Workgroup is specified' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {'contoso.com'}
+                Test-TargetResource -Name $Env:ComputerName -WorkGroupName 'Contoso' -Credential $Credential -UnjoinCredential $Credential | Should Be $false
+            }
+        }
+        Context Get-TargetResource {
+            It 'should not throw' {
+                {Get-TargetResource -Name $env:COMPUTERNAME} | Should Not Throw
+            }
+            It 'Should return a hashtable containing Name,DomainName, Credential, UnjoinCredential and WorkGroupName' {
+                $Result = Get-TargetResource -Name $env:COMPUTERNAME
+                $Result.GetType().Fullname | Should Be 'System.Collections.Hashtable'
+                $Result.Keys | Should Be @('Name','DomainName','Credential','UnjoinCredential','WorkGroupName')
+            }
+        }
+        Context Set-TargetResource {
+            Mock Rename-Computer {}
+            Mock Add-Computer {}
+            It 'Throws if both DomainName and WorkGroupName are specified' {
+                {Set-TargetResource -Name $Env:ComputerName -DomainName 'contoso.com' -WorkGroupName 'workgroup'} | Should Throw
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 0 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It
+            }
+            It 'Throws if Domain is specified without Credentials' {
+                {Set-TargetResource -Name $Env:ComputerName -DomainName 'contoso.com'} | Should Throw
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 0 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It
+            }
+            It 'Changes ComputerName and changes Domain to new Domain' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {'contoso.com'}
+                Set-TargetResource -Name $NotComputerName -DomainName 'adventure-works.com' -Credential $Credential -UnjoinCredential $Credential | Should BeNullOrEmpty
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 0 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 1 -Scope It -ParameterFilter {$DomainName -and $NewName}
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It -ParameterFilter {$WorkGroupName}
+            }
+            It 'Changes ComputerName and changes Domain to Workgroup' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {'contoso.com'}
+                Set-TargetResource -Name $NotComputerName -WorkGroupName 'contoso' -UnjoinCredential $Credential | Should BeNullOrEmpty
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 0 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 1 -Scope It -ParameterFilter {$WorkGroupName -and $NewName}
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It -ParameterFilter {$DomainName}
+            }
+            It 'Changes ComputerName and changes Workgroup to Domain' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso';Workgroup='Contoso';PartOfDomain=$false}}
+                Mock GetComputerDomain {''}
+                Set-TargetResource -Name $NotComputerName -DomainName 'Contoso.com' -Credential $Credential | Should BeNullOrEmpty
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 0 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 1 -Scope It -ParameterFilter {$DomainName -and $NewName}
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It -ParameterFilter {$WorkGroupName}
+            }
+            It 'Changes ComputerName and changes Workgroup to new Workgroup' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso';Workgroup='Contoso';PartOfDomain=$false}}
+                Mock GetComputerDomain {''}
+                Set-TargetResource -Name $NotComputerName -WorkGroupName 'adventure-works' | Should BeNullOrEmpty
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 0 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 1 -Scope It -ParameterFilter {$WorkGroupName -and $NewName}
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It -ParameterFilter {$DomainName}
+            }
+            It 'Changes only the Domain to new Domain' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {'contoso.com'}
+                Set-TargetResource -Name $Env:ComputerName -DomainName 'adventure-works.com' -Credential $Credential -UnjoinCredential $Credential | Should BeNullOrEmpty
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 0 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 1 -Scope It -ParameterFilter {$DomainName}
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It -ParameterFilter {$NewName}
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It -ParameterFilter {$WorkGroupName}
+            }
+            It 'Changes only Domain to Workgroup' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {''}
+                Set-TargetResource -Name $Env:ComputerName -WorkGroupName 'Contoso' -UnjoinCredential $Credential | Should BeNullOrEmpty
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 0 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It -ParameterFilter {$NewName}
+                Assert-MockCalled -CommandName Add-Computer -Exactly 1 -Scope It -ParameterFilter {$WorkGroupName}
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It -ParameterFilter {$DomainName}
+            }
+            It 'Changes only ComputerName in Domain' {
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso.com';Workgroup='Contoso.com';PartOfDomain=$true}}
+                Mock GetComputerDomain {'contoso.com'}
+                Set-TargetResource -Name $NotComputerName -Credential $Credential | Should BeNullOrEmpty
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 1 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It
+            }
+            It 'Changes only ComputerName in Workgroup' {
+                Mock GetComputerDomain {''}
+                Mock Get-WMIObject {[PSCustomObject]@{Domain = 'Contoso';Workgroup='Contoso';PartOfDomain=$false}}
+                Set-TargetResource -Name $NotComputerName | Should BeNullOrEmpty
+                Assert-MockCalled -CommandName Rename-Computer -Exactly 1 -Scope It
+                Assert-MockCalled -CommandName Add-Computer -Exactly 0 -Scope It
+            }
+        }
+    }
+}
+