Tests/Integration/ComputerManagementDsc.Common.Tests.ps1
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#region HEADER $script:ModuleName = 'ComputerManagementDsc.Common' Import-Module -Name (Join-Path -Path (Join-Path -Path (Split-Path $PSScriptRoot -Parent) -ChildPath 'TestHelpers') -ChildPath 'CommonTestHelper.psm1') -Global # Unit Test Template Version: 1.2.4 $script:moduleRoot = Split-Path -Parent (Split-Path -Parent $PSScriptRoot) 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 -Name (Join-Path -Path $script:moduleRoot -ChildPath (Join-Path -Path 'DSCResource.Tests' -ChildPath 'TestHelper.psm1')) -Force Import-Module (Join-Path -Path (Join-Path -Path $script:moduleRoot -ChildPath (Join-Path -Path 'Modules' -ChildPath $script:ModuleName)) -ChildPath "$script:ModuleName.psm1") -Force #endregion HEADER # Store the test machine timezone $currentTimeZone = & tzutil.exe /g # Change the current timezone so that a complete test occurs. tzutil.exe /s 'Eastern Standard Time' # Using try/finally to always cleanup even if something awful happens. try { InModuleScope $script:ModuleName { Describe 'ComputerManagementDsc.Common\Set-TimeZoneId' { <# The purpose of this test is to ensure the C# .NET code that is used to set the time zone if the Set-TimeZone cmdlet is not available but the Add-Type cmdlet is available The other conditions can be effectively tested with the unit tests, but the only way to test the C# .NET code is to execute it without mocking. This results in a destrutive change which is only allowed within the integration tests. #> Context '"Set-TimeZone" is not available but "Add-Type" is available' { Mock ` -CommandName Get-Command ` -ParameterFilter { $Name -eq 'Add-Type' } -MockWith { 'Add-Type' } Mock ` -CommandName Get-Command ` -ParameterFilter { $Name -eq 'Set-TimeZone' } Mock -CommandName 'TzUtil.exe' -MockWith { $Script:LASTEXITCODE = 0 return 'OK' } It 'Should not throw an exception' { { Set-TimeZoneId -TimezoneId 'Eastern Standard Time' } | Should -Not -Throw } It 'Should have set the time zone to Eastern Standard Time' { Get-TimeZoneId | Should -Be 'Eastern Standard Time' } It 'Should call expected mocks' { Assert-MockCalled ` -CommandName Get-Command ` -ParameterFilter { $Name -eq 'Add-Type' } -Exactly -Times 1 Assert-MockCalled ` -CommandName Get-Command ` -ParameterFilter { $Name -eq 'Set-TimeZone' } -Exactly -Times 1 Assert-MockCalled -CommandName TzUtil.exe -Exactly -Times 0 } } } } } finally { # Restore the test machine timezone & tzutil.exe /s $CurrentTimeZone } |