Tests/Unit/TimezoneHelper.Tests.ps1
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[String] $moduleRoot = Split-Path -Parent (Split-Path -Parent (Split-Path -Parent $Script:MyInvocation.MyCommand.Path)) if (Get-Module -Name TimezoneHelper -ErrorAction SilentlyContinue) { Remove-Module -Name TimezoneHelper } Import-Module -Name (Join-Path -Path $moduleRoot -ChildPath 'DSCResources\TimezoneHelper.psm1') -Force #region Pester Tests InModuleScope TimezoneHelper { Describe 'Get-Timezone' { Context "Current Timezone is set to 'Pacific Standard Time'" { Mock -CommandName Get-CimInstance -MockWith { @{ StandardName = 'Pacific Standard Time' } } It "Returns 'Pacific Standard Time'." { Get-Timezone | should be 'Pacific Standard Time' } Assert-MockCalled -CommandName Get-CimInstance -Exactly 1 } } Describe 'Get-TimezoneId' { Context "Test Timezone where standard name is different to Id" { It "Should return 'Russia Time Zone 11'" { Get-TimezoneId -Timezone 'Russia TZ 11 Standard Time' | Should Be 'Russia Time Zone 11' } } Context "Test Timezone where standard name is the same as Id" { It "Should return 'GMT Standard Time'" { Get-TimezoneId -Timezone 'GMT Standard Time' | Should Be 'GMT Standard Time' } } Context "Test Timezone that does not exist" { It "Should return Empty" { Get-TimezoneId -Timezone 'Wonderland Time' | Should BeNullOrEmpty } } } Describe 'Test-Timezone' { Mock Get-TimeZone -MockWith { 'Russia TZ 11 Standard Time' } Context "Current timezone matches desired timezone" { It "Should return True" { Test-Timezone -ExpectTimeZoneId 'Russia Time Zone 11' | Should Be $True } } Context "Current timezone does not match desired timezone" { It "Should return False" { Test-Timezone -ExpectTimeZoneId 'GMT Standard Time' | Should Be $False } } } Describe 'Set-Timezone' { Context "'Add-Type' is not available, Tzutil Returns 0" { Mock -CommandName Get-Command Mock -CommandName 'TzUtil.exe' -MockWith { $Global:LASTEXITCODE = 0; return "OK" } Mock -CommandName Add-Type It "Should not throw exception" { { Set-Timezone -Timezone 'Eastern Standard Time'} | Should Not Throw } Assert-MockCalled -CommandName Get-Command -Exactly 1 Assert-MockCalled -CommandName TzUtil.exe -Exactly 1 Assert-MockCalled -CommandName Add-Type -Exactly 0 } Context "'Add-Type' is available" { Mock -CommandName Get-Command -MockWith { @{ Name = 'Add-Type'} } Mock -CommandName 'TzUtil.exe' -MockWith { $Global:LASTEXITCODE = 0; return "OK" } Mock -CommandName Set-TimeZoneUsingNET It "Should throw exception" { { Set-Timezone -Timezone 'Eastern Standard Time'} | Should Not Throw } Assert-MockCalled -CommandName Get-Command -Exactly 1 Assert-MockCalled -CommandName TzUtil.exe -Exactly 0 Assert-MockCalled -CommandName Set-TimeZoneUsingNET -Exactly 1 } } } |