xNetworking

2.6.0.0

Tests/Unit/MSFT_xIPAddress.Tests.ps1

$Global:DSCModuleName      = 'xNetworking'
$Global:DSCResourceName    = 'MSFT_xIPAddress'

#region HEADER
[String] $moduleRoot = Split-Path -Parent (Split-Path -Parent (Split-Path -Parent $Script:MyInvocation.MyCommand.Path))
if ( (-not (Test-Path -Path (Join-Path -Path $moduleRoot -ChildPath 'DSCResource.Tests'))) -or `
     (-not (Test-Path -Path (Join-Path -Path $moduleRoot -ChildPath 'DSCResource.Tests\TestHelper.psm1'))) )
{
    & git @('clone','https://github.com/PowerShell/DscResource.Tests.git',(Join-Path -Path $moduleRoot -ChildPath '\DSCResource.Tests\'))
}
else
{
    & git @('-C',(Join-Path -Path $moduleRoot -ChildPath '\DSCResource.Tests\'),'pull')
}
Import-Module (Join-Path -Path $moduleRoot -ChildPath 'DSCResource.Tests\TestHelper.psm1') -Force
$TestEnvironment = Initialize-TestEnvironment `
    -DSCModuleName $Global:DSCModuleName `
    -DSCResourceName $Global:DSCResourceName `
    -TestType Unit 
#endregion

# Begin Testing
try
{

    #region Pester Tests

    InModuleScope $Global:DSCResourceName {

        Describe "$($Global:DSCResourceName)\Get-TargetResource" {
    
            #region Mocks
            Mock Get-NetIPAddress -MockWith {
                [PSCustomObject]@{
                    IPAddress = '192.168.0.1'
                    InterfaceAlias = 'Ethernet'
                    InterfaceIndex = 1
                    PrefixLength = [byte]24
                    AddressFamily = 'IPv4'
                }
            }
            #endregion
    
            Context 'invoking' {
                It 'should return existing IP details' {
                    $Splat = @{
                        IPAddress = '192.168.0.1'
                        InterfaceAlias = 'Ethernet'
                        AddressFamily = 'IPv4'
                    }
                    $Result = Get-TargetResource @Splat
                    $Result.IPAddress | Should Be $Splat.IPAddress
                    $Result.SubnetMask | Should Be 24
                }
            }
    
            Context 'Subnet Mask' {
                It 'should fail if passed a negative number' {
                    $Splat = @{
                        IPAddress = '192.168.0.1'
                        InterfaceAlias = 'Ethernet'
                        Subnet = -16
                    }
    
                    { Get-TargetResource @Splat } `
                        | Should Throw 'Value was either too large or too small for a UInt32.'
                }
            }
        }
    
        Describe "$($Global:DSCResourceName)\Set-TargetResource" {
    
            #region Mocks
            Mock Get-NetIPAddress -MockWith {
                [PSCustomObject]@{
                    IPAddress = '192.168.0.1'
                    InterfaceAlias = 'Ethernet'
                    InterfaceIndex = 1
                    PrefixLength = [byte]16
                    AddressFamily = 'IPv4'
                }
            }
    
            Mock New-NetIPAddress
    
            Mock Get-NetRoute {
                [PSCustomObject]@{
                    InterfaceAlias = 'Ethernet'
                    InterfaceIndex = 1
                    AddressFamily = 'IPv4'
                    NextHop = '192.168.0.254'
                    DestinationPrefix = '0.0.0.0/0'
                }
            }
    
            Mock Remove-NetIPAddress
    
            Mock Remove-NetRoute
            #endregion
    
            Context 'invoking with valid IP Address' {
    
                It 'should rerturn $null' {
                    $Splat = @{
                        IPAddress = '10.0.0.2'
                        InterfaceAlias = 'Ethernet'
                        AddressFamily = 'IPv4'
                    }
                    { $Result = Set-TargetResource @Splat } | Should Not Throw
                    $Result | Should BeNullOrEmpty
                }
    
                It 'should call all the mocks' {
                    Assert-MockCalled -commandName Get-NetIPAddress -Exactly 1
                    Assert-MockCalled -commandName Get-NetRoute -Exactly 1
                    Assert-MockCalled -commandName Remove-NetRoute -Exactly 1
                    Assert-MockCalled -commandName Remove-NetIPAddress -Exactly 1
                    Assert-MockCalled -commandName New-NetIPAddress -Exactly 1
                }
            }
        }
    
        Describe "$($Global:DSCResourceName)\Test-TargetResource" {
    
    
            #region Mocks
            Mock Get-NetAdapter -MockWith { [PSObject]@{ Name = 'Ethernet' } }
    
            Mock Get-NetIPAddress -MockWith {
    
                [PSCustomObject]@{
                    IPAddress = '192.168.0.1'
                    InterfaceAlias = 'Ethernet'
                    InterfaceIndex = 1
                    PrefixLength = [byte]16
                    AddressFamily = 'IPv4'
                }
            }
            #endregion
    
            Context 'invoking with invalid IPv4 Address' {
    
                It 'should throw an AddressFormatError error' {
                    $Splat = @{
                        IPAddress = 'BadAddress'
                        InterfaceAlias = 'Ethernet'
                        AddressFamily = 'IPv4'
                    }
                    $errorId = 'AddressFormatError'
                    $errorCategory = [System.Management.Automation.ErrorCategory]::InvalidArgument
                    $errorMessage = $($LocalizedData.AddressFormatError) -f $Splat.IPAddress
                    $exception = New-Object -TypeName System.InvalidOperationException `
                        -ArgumentList $errorMessage
                    $errorRecord = New-Object -TypeName System.Management.Automation.ErrorRecord `
                        -ArgumentList $exception, $errorId, $errorCategory, $null
    
                    { $Result = Test-TargetResource @Splat } | Should Throw $errorRecord
                }
            }
    
            Context 'invoking with different IPv4 Address' {
    
                It 'should be $false' {
                    $Splat = @{
                        IPAddress = '10.0.0.2'
                        InterfaceAlias = 'Ethernet'
                        AddressFamily = 'IPv4'
                    }
                    $Result = Test-TargetResource @Splat
                    $Result | Should Be $false
                }
                It 'should call appropriate mocks' {
                    Assert-MockCalled -commandName Get-NetIPAddress -Exactly 1
                }
            }
            
            Context 'invoking with the same IPv4 Address' {
    
                It 'should be $true' {
                    $Splat = @{
                        IPAddress = '192.168.0.1'
                        InterfaceAlias = 'Ethernet'
                        AddressFamily = 'IPv4'
                    }
                    $Result = Test-TargetResource @Splat
                    $Result | Should Be $true
                }
                It 'should call appropriate mocks' {
                    Assert-MockCalled -commandName Get-NetIPAddress -Exactly 1
                }
            }
    
            Mock Get-NetIPAddress -MockWith {
    
                [PSCustomObject]@{
                    IPAddress = 'fe80::1'
                    InterfaceAlias = 'Ethernet'
                    InterfaceIndex = 1
                    PrefixLength = [byte]64
                    AddressFamily = 'IPv6'
                }
            }
            Context 'invoking with invalid IPv6 Address' {
    
                It 'should throw an AddressFormatError error' {
                    $Splat = @{
                        IPAddress = 'BadAddress'
                        InterfaceAlias = 'Ethernet'
                        SubnetMask = 64
                        AddressFamily = 'IPv6'
                    }
                    $errorId = 'AddressFormatError'
                    $errorCategory = [System.Management.Automation.ErrorCategory]::InvalidArgument
                    $errorMessage = $($LocalizedData.AddressFormatError) -f $Splat.IPAddress
                    $exception = New-Object -TypeName System.InvalidOperationException `
                        -ArgumentList $errorMessage
                    $errorRecord = New-Object -TypeName System.Management.Automation.ErrorRecord `
                        -ArgumentList $exception, $errorId, $errorCategory, $null
    
                    { $Result = Test-TargetResource @Splat } | Should Throw $errorRecord
                }
            }
    
            Context 'invoking with different IPv6 Address' {
    
                It 'should be $false' {
                    $Splat = @{
                        IPAddress = 'fe80::2'
                        InterfaceAlias = 'Ethernet'
                        SubnetMask = 64
                        AddressFamily = 'IPv6'
                    }
                    $Result = Test-TargetResource @Splat
                    $Result | Should Be $false
                }
                It 'should call appropriate mocks' {
                    Assert-MockCalled -commandName Get-NetIPAddress -Exactly 1
                }
            }
            
            Context 'invoking with the same IPv6 Address' {
    
                It 'should be $true' {
                    $Splat = @{
                        IPAddress = 'fe80::1'
                        InterfaceAlias = 'Ethernet'
                        SubnetMask = 64
                        AddressFamily = 'IPv6'
                    }
                    $Result = Test-TargetResource @Splat
                    $Result | Should Be $true
                }
                It 'should call appropriate mocks' {
                    Assert-MockCalled -commandName Get-NetIPAddress -Exactly 1
                }
            }
        }
    
        Describe "$($Global:DSCResourceName)\Test-ResourceProperty" {
    
            Mock Get-NetAdapter -MockWith { [PSObject]@{ Name = 'Ethernet' } }
    
            Context 'invoking with bad interface alias' {
    
                It 'should throw an InterfaceNotAvailable error' {
                    $Splat = @{
                        IPAddress = '192.168.0.1'
                        InterfaceAlias = 'NotReal'
                        AddressFamily = 'IPv4'
                    }
                    $errorId = 'InterfaceNotAvailable'
                    $errorCategory = [System.Management.Automation.ErrorCategory]::DeviceError
                    $errorMessage = $($LocalizedData.InterfaceNotAvailableError) -f $Splat.InterfaceAlias
                    $exception = New-Object -TypeName System.InvalidOperationException `
                        -ArgumentList $errorMessage
                    $errorRecord = New-Object -TypeName System.Management.Automation.ErrorRecord `
                        -ArgumentList $exception, $errorId, $errorCategory, $null
    
                    { Test-ResourceProperty @Splat } | Should Throw $errorRecord
                }
            }
    
            Context 'invoking with invalid IP Address' {
    
                It 'should throw an AddressFormatError error' {
                    $Splat = @{
                        IPAddress = 'NotReal'
                        InterfaceAlias = 'Ethernet'
                        AddressFamily = 'IPv4'
                    }
                    $errorId = 'AddressFormatError'
                    $errorCategory = [System.Management.Automation.ErrorCategory]::InvalidArgument
                    $errorMessage = $($LocalizedData.AddressFormatError) -f $Splat.IPAddress
                    $exception = New-Object -TypeName System.InvalidOperationException `
                        -ArgumentList $errorMessage
                    $errorRecord = New-Object -TypeName System.Management.Automation.ErrorRecord `
                        -ArgumentList $exception, $errorId, $errorCategory, $null
    
                    { Test-ResourceProperty @Splat } | Should Throw $errorRecord
                }
            }
    
            Context 'invoking with IP Address and family mismatch' {
    
                It 'should throw an AddressMismatchError error' {
                    $Splat = @{
                        IPAddress = '192.168.0.1'
                        InterfaceAlias = 'Ethernet'
                        AddressFamily = 'IPv6'
                    }
                    $errorId = 'AddressMismatchError'
                    $errorCategory = [System.Management.Automation.ErrorCategory]::InvalidArgument
                    $errorMessage = $($LocalizedData.AddressIPv4MismatchError) -f $Splat.IPAddress,$Splat.AddressFamily
                    $exception = New-Object -TypeName System.InvalidOperationException `
                        -ArgumentList $errorMessage
                    $errorRecord = New-Object -TypeName System.Management.Automation.ErrorRecord `
                        -ArgumentList $exception, $errorId, $errorCategory, $null
    
                    { Test-ResourceProperty @Splat } | Should Throw $errorRecord
                }
            }
    
            Context 'invoking with valid IPv4 Address' {
    
                It 'should not throw an error' {
                    $Splat = @{
                        IPAddress = '192.168.0.1'
                        InterfaceAlias = 'Ethernet'
                        AddressFamily = 'IPv4'
                    }
                    { Test-ResourceProperty @Splat } | Should Not Throw
                }
            }
    
            Context 'invoking with valid IPv6 Address' {
    
                It 'should not throw an error' {
                    $Splat = @{
                        IPAddress = 'fe80:ab04:30F5:002b::1'
                        InterfaceAlias = 'Ethernet'
                        SubnetMask = 64
                        AddressFamily = 'IPv6'
                    }
                    { Test-ResourceProperty @Splat } | Should Not Throw
                }
            }
    
            Context 'invoking with invalid IPv4 subnet mask' {
    
                It 'should throw a SubnetMaskError when greater than 32' {
                    $Splat = @{
                        IPAddress = '192.168.0.1'
                        InterfaceAlias = 'Ethernet'
                        SubnetMask = 33
                        AddressFamily = 'IPv4'
                    }
                    $errorId = 'SubnetMaskError'
                    $errorCategory = [System.Management.Automation.ErrorCategory]::InvalidArgument
                    $errorMessage = $($LocalizedData.SubnetMaskError) -f $Splat.SubnetMask,$Splat.AddressFamily
                    $exception = New-Object -TypeName System.InvalidOperationException `
                        -ArgumentList $errorMessage
                    $errorRecord = New-Object -TypeName System.Management.Automation.ErrorRecord `
                        -ArgumentList $exception, $errorId, $errorCategory, $null
    
                    { Test-ResourceProperty @Splat } | Should Throw $errorRecord
                }
                It 'should throw an Argument error when less than 0' {
                    $Splat = @{
                        IPAddress = '192.168.0.1'
                        InterfaceAlias = 'Ethernet'
                        SubnetMask = -1
                        AddressFamily = 'IPv4'
                    }
                    { Test-ResourceProperty @Splat } `
                        | Should Throw 'Value was either too large or too small for a UInt32.'
                }
            }
    
            Context 'invoking with invalid IPv6 subnet mask' {
    
                It 'should throw a SubnetMaskError error when greater than 128' {
                    $Splat = @{
                        IPAddress = 'fe80::1'
                        InterfaceAlias = 'Ethernet'
                        SubnetMask = 129
                        AddressFamily = 'IPv6'
                    }
    
                    $errorId = 'SubnetMaskError'
                    $errorCategory = [System.Management.Automation.ErrorCategory]::InvalidArgument
                    $errorMessage = $($LocalizedData.SubnetMaskError) -f $Splat.SubnetMask,$Splat.AddressFamily
                    $exception = New-Object -TypeName System.InvalidOperationException `
                        -ArgumentList $errorMessage
                    $errorRecord = New-Object -TypeName System.Management.Automation.ErrorRecord `
                        -ArgumentList $exception, $errorId, $errorCategory, $null
    
                    { Test-ResourceProperty @Splat } | Should Throw $errorRecord
                }
                It 'should throw an Argument error when less than 0' {
                    $Splat = @{
                        IPAddress = 'fe80::1'
                        InterfaceAlias = 'Ethernet'
                        SubnetMask = -1
                        AddressFamily = 'IPv6'
                    }
    
                    { Test-ResourceProperty @Splat } `
                        | Should Throw 'Value was either too large or too small for a UInt32.'
                }
            }
    
            Context 'invoking with valid string IPv6 subnet mask' {
    
                It 'should not throw an error' {
                    $Splat = @{
                        IPAddress = 'fe80::1'
                        InterfaceAlias = 'Ethernet'
                        SubnetMask = '64'
                        AddressFamily = 'IPv6'
                    }
                    { Test-ResourceProperty @Splat } | Should Not Throw
                }
            }
        }
    } #end InModuleScope $DSCResourceName
    #endregion
}
finally
{
    #region FOOTER
    Restore-TestEnvironment -TestEnvironment $TestEnvironment
    #endregion
}