Tests/Unit/MSFT_xDnsRecord.Tests.ps1
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$Global:DSCModuleName = 'xDnsServer' # Example xNetworking $Global:DSCResourceName = 'MSFT_xDnsRecord' # Example MSFT_xFirewall #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 { #region Pester Test Initialization $testPresentParams = @{ Name = "test" Zone = "contoso.com" Target = "192.168.0.1" Type = "ARecord" Ensure = "Present" } $testAbsentParams = @{ Name = $testPresentParams.Name Zone = $testPresentParams.Zone Target = $testPresentParams.Target Type = $testPresentParams.Type Ensure = "Absent" } $fakeDnsServerResourceRecord = @{ HostName = $testPresentParams.Name; RecordType = 'A' TimeToLive = '01:00:00' RecordData = @{ IPv4Address = @{ IPAddressToString = $testPresentParams.Target } } } #endregion Describe "$($Global:DSCResourceName)\Get-TargetResource" { It "Returns Ensure is Present when DNS record exists" { Mock Get-DnsServerResourceRecord { return $fakeDnsServerResourceRecord } (Get-TargetResource @testPresentParams).Ensure | Should Be 'Present' } It "Returns Ensure is Absent when DNS record does not exist" { Mock Get-DnsServerResourceRecord { return $null } (Get-TargetResource @testPresentParams).Ensure | Should Be 'Absent' } } #endregion Describe "$($Global:DSCResourceName)\Test-TargetResource" { It "Fails when no DNS record exists and Ensure is Present" { Mock Get-TargetResource { return $testAbsentParams } Test-TargetResource @testPresentParams | Should Be $false } It "Fails when a record exists, target does not match and Ensure is Present" { Mock Get-TargetResource { return @{ Name = $testPresentParams.Name Zone = $testPresentParams.Zone Target = "192.168.0.10" Ensure = $testPresentParams.Ensure } } Test-TargetResource @testPresentParams | Should Be $false } It "Fails when round-robin record exists, target does not match and Ensure is Present (Issue #23)" { Mock Get-TargetResource { return @{ Name = $testPresentParams.Name Zone = $testPresentParams.Zone Target = @("192.168.0.10","192.168.0.11") Ensure = $testPresentParams.Ensure } } Test-TargetResource @testPresentParams | Should Be $false } It "Fails when a record exists and Ensure is Absent" { Mock Get-TargetResource { return $testPresentParams } Test-TargetResource @testAbsentParams | Should Be $false } It "Fails when round-robin record exists, and Ensure is Absent (Issue #23)" { Mock Get-TargetResource { return @{ Name = $testPresentParams.Name Zone = $testPresentParams.Zone Target = @("192.168.0.1","192.168.0.2") Ensure = $testPresentParams.Ensure } } Test-TargetResource @testAbsentParams | Should Be $false } It "Passes when record exists, target matches and Ensure is Present" { Mock Get-TargetResource { return $testPresentParams } Test-TargetResource @testPresentParams | Should Be $true } It "Passes when round-robin record exists, target matches and Ensure is Present (Issue #23)" { Mock Get-TargetResource { return @{ Name = $testPresentParams.Name Zone = $testPresentParams.Zone Target = @("192.168.0.1","192.168.0.2") Ensure = $testPresentParams.Ensure } } Test-TargetResource @testPresentParams | Should Be $true } It "Passes when record does not exist and Ensure is Absent" { Mock Get-TargetResource { return $testAbsentParams } Test-TargetResource @testAbsentParams | Should Be $true } } #end region Describe "$($Global:DSCResourceName)\Set-TargetResource" { It "Calls Add-DnsServerResourceRecord in the set method when Ensure is Present" { Mock Add-DnsServerResourceRecord { return $null } Set-TargetResource @testPresentParams Assert-MockCalled Add-DnsServerResourceRecord -Scope It } It "Calls Remove-DnsServerResourceRecord in the set method when Ensure is Absent" { Mock Remove-DnsServerResourceRecord { return $null } Set-TargetResource @testAbsentParams Assert-MockCalled Remove-DnsServerResourceRecord -Scope It } } #endregion } #end InModuleScope } finally { #region FOOTER Restore-TestEnvironment -TestEnvironment $TestEnvironment #endregion } |