Tests/Unit/MSFT_xPowerPlan.Tests.ps1
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$script:DSCModuleName = 'xComputerManagement' $script:DSCResourceName = 'MSFT_xPowerPlan' Import-Module -Name (Join-Path -Path (Join-Path -Path (Split-Path $PSScriptRoot -Parent) -ChildPath 'TestHelpers') -ChildPath 'CommonTestHelper.psm1') -Global # Unit Test Template Version: 1.2.0 $script:moduleRoot = Split-Path -Parent (Split-Path -Parent (Split-Path -Parent $Script:MyInvocation.MyCommand.Path)) if ( (-not (Test-Path -Path (Join-Path -Path $script:moduleRoot -ChildPath 'DSCResource.Tests'))) -or ` (-not (Test-Path -Path (Join-Path -Path $script:moduleRoot -ChildPath 'DSCResource.Tests\TestHelper.psm1'))) ) { & git @('clone', 'https://github.com/PowerShell/DscResource.Tests.git', (Join-Path -Path $script:moduleRoot -ChildPath '\DSCResource.Tests\')) } Import-Module (Join-Path -Path $script:moduleRoot -ChildPath 'DSCResource.Tests\TestHelper.psm1') -Force $TestEnvironment = Initialize-TestEnvironment ` -DSCModuleName $script:DSCModuleName ` -DSCResourceName $script:DSCResourceName ` -TestType Unit #endregion HEADER function Invoke-TestCleanup { Restore-TestEnvironment -TestEnvironment $TestEnvironment } # Begin Testing try { # Assign the localized data from the module into a local variable $LocalizedData = InModuleScope $script:DSCResourceName { $LocalizedData } Describe "$($script:DSCResourceName)\Get-TargetResource" { BeforeEach { $testParameters = @{ IsSingleInstance = 'Yes' Name = 'High performance' Verbose = $true } } Context 'When the system is in the desired present state' { BeforeEach { Mock ` -CommandName Get-CimInstance ` -MockWith { return New-Object Object | Add-Member -MemberType NoteProperty -Name IsActive -Value $true -PassThru -Force } ` -ModuleName $script:DSCResourceName ` -Verifiable } It 'Should return the same values as passed as parameters' { $result = Get-TargetResource @testParameters $result.IsSingleInstance | Should Be 'Yes' $result.Name | Should Be $testParameters.Name } } Context 'When the system is not in the desired present state' { BeforeEach { Mock ` -CommandName Get-CimInstance ` -MockWith { return New-Object Object | Add-Member -MemberType NoteProperty -Name IsActive -Value $false -PassThru -Force } ` -ModuleName $script:DSCResourceName ` -Verifiable } It 'Should not return any plan name' { $result = Get-TargetResource @testParameters $result.IsSingleInstance | Should Be 'Yes' $result.Name | Should Be $null } } Context 'When the Get-CimInstance cannot retrive information about power plans' { BeforeEach { Mock ` -CommandName Get-CimInstance ` -MockWith { throw } ` -ModuleName $script:DSCResourceName ` -Verifiable } It 'Should throw the expected error' { $errorRecord = Get-InvalidOperationRecord ` -Message ($LocalizedData.PowerPlanCimError -f 'Win32_PowerPlan') { Get-TargetResource @testParameters } | Should Throw $errorRecord } } Context 'When the preferred plan does not exist' { BeforeEach { Mock ` -CommandName Get-CimInstance ` -ModuleName $script:DSCResourceName ` -Verifiable } It 'Should throw the expected error' { $errorRecord = Get-InvalidOperationRecord ` -Message ($LocalizedData.PowerPlanNotFound -f $testParameters.Name) { Get-TargetResource @testParameters } | Should Throw $errorRecord } } Assert-VerifiableMock } Describe "$($script:DSCResourceName)\Set-TargetResource" { BeforeEach { $testParameters = @{ IsSingleInstance = 'Yes' Name = 'High performance' Verbose = $true } Mock ` -CommandName Invoke-CimMethod ` -ModuleName $script:DSCResourceName ` -Verifiable Mock ` -CommandName Get-CimInstance ` -MockWith { return New-Object ` -TypeName Microsoft.Management.Infrastructure.CimInstance ` -ArgumentList @('Win32_PowerPlan', 'dummyNamespace') } ` -ModuleName $script:DSCResourceName ` -Verifiable } Context 'When the system is not in the desired present state' { It 'Should call the mocked function Invoke-CimMethod exactly once' { Set-TargetResource @testParameters Assert-MockCalled -CommandName Invoke-CimMethod -Exactly -Times 1 -Scope It -ModuleName $script:DSCResourceName } } Context 'When the Get-CimInstance cannot retrive information about power plans' { BeforeEach { Mock ` -CommandName Get-CimInstance ` -MockWith { throw } ` -ModuleName $script:DSCResourceName ` -Verifiable } It 'Should throw the expected error' { $errorRecord = Get-InvalidOperationRecord ` -Message ($LocalizedData.PowerPlanCimError -f 'Win32_PowerPlan') { Set-TargetResource @testParameters } | Should Throw $errorRecord } } Context 'When the Invoke-CimMethod throws an error' { BeforeEach { Mock ` -CommandName Invoke-CimMethod ` -MockWith { throw 'Failed to set value' } ` -ModuleName $script:DSCResourceName ` -Verifiable } It 'Should catch the correct error thrown by Invoke-CimMethod' { $errorRecord = Get-InvalidOperationRecord ` -Message ($LocalizedData.PowerPlanWasUnableToBeSet -f $testParameters.Name, 'Failed to set value') { Set-TargetResource @testParameters } | Should Throw $errorRecord } } Assert-VerifiableMock } Describe "$($script:DSCResourceName)\Test-TargetResource" { BeforeEach { $testParameters = @{ IsSingleInstance = 'Yes' Name = 'High performance' Verbose = $true } } Context 'When the system is in the desired present state' { BeforeEach { Mock ` -CommandName Get-CimInstance ` -MockWith { return New-Object Object | Add-Member -MemberType NoteProperty -Name IsActive -Value $true -PassThru -Force } ` -ModuleName $script:DSCResourceName ` -Verifiable } It 'Should return the the state as present ($true)' { Test-TargetResource @testParameters | Should Be $true } } Context 'When the system is not in the desired state' { BeforeEach { Mock ` -CommandName Get-CimInstance ` -MockWith { return New-Object Object | Add-Member -MemberType NoteProperty -Name IsActive -Value $false -PassThru -Force } ` -ModuleName $script:DSCResourceName ` -Verifiable } It 'Should return the the state as absent ($false)' { Test-TargetResource @testParameters | Should Be $false } } Assert-VerifiableMock } } finally { Invoke-TestCleanup } |