Tests/Unit/xExchangeHelper.tests.ps1
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#region HEADER $script:DSCModuleName = 'xExchange' $script:DSCHelperName = "xExchangeHelper" # Unit Test Template Version: 1.2.2 $script:moduleRoot = Split-Path -Parent (Split-Path -Parent $PSScriptRoot) Import-Module -Name (Join-Path -Path $script:moduleRoot -ChildPath (Join-Path -Path 'Modules' -ChildPath 'xExchangeHelper.psm1')) -Force #endregion HEADER function Invoke-TestSetup { } function Invoke-TestCleanup { } # Begin Testing try { Invoke-TestSetup InModuleScope $script:DSCHelperName { # Used for calls to Get-InstallStatus $getInstallStatusParams = @{ Arguments = '/mode:Install /role:Mailbox /Iacceptexchangeserverlicenseterms' } # Get a unique Guid that doesn't resolve to a local path # Use System.Guid, as New-Guid isn't available in PS4 and below do { $guid1 = [System.Guid]::NewGuid().ToString() } while (Test-Path -Path $guid1) # Get a unique Guid that doesn't resolve to a local path do { $guid2 = [System.Guid]::NewGuid().ToString() } while ((Test-Path -Path $guid2) -or $guid1 -like $guid2) Describe 'xExchangeHelper\Get-InstallStatus' -Tag 'Helper' { AfterEach { Assert-MockCalled -CommandName Get-ShouldInstallLanguagePack -Exactly -Times 1 -Scope It Assert-MockCalled -CommandName Get-IsSetupRunning -Exactly -Times 1 -Scope It Assert-MockCalled -CommandName Get-IsSetupComplete -Exactly -Times 1 -Scope It Assert-MockCalled -CommandName Get-IsExchangePresent -Exactly -Times 1 -Scope It } Context 'When Exchange is not present on the system' { It 'Should only recommend starting the install' { Mock -CommandName Get-ShouldInstallLanguagePack -MockWith { return $false } Mock -CommandName Get-IsSetupRunning -MockWith { return $false } Mock -CommandName Get-IsSetupComplete -MockWith { return $false } Mock -CommandName Get-IsExchangePresent -MockWith { return $false } $installStatus = Get-InstallStatus @getInstallStatusParams $installStatus.ShouldInstallLanguagePack | Should -Be $false $installStatus.SetupRunning | Should -Be $false $installStatus.SetupComplete | Should -Be $false $installStatus.ExchangePresent | Should -Be $false $installStatus.ShouldStartInstall | Should -Be $true } } Context 'When Exchange Setup has fully completed' { It 'Should indicate setup is complete and Exchange is present' { Mock -CommandName Get-ShouldInstallLanguagePack -MockWith { return $false } Mock -CommandName Get-IsSetupRunning -MockWith { return $false } Mock -CommandName Get-IsSetupComplete -MockWith { return $true } Mock -CommandName Get-IsExchangePresent -MockWith { return $true } $installStatus = Get-InstallStatus @getInstallStatusParams $installStatus.ShouldInstallLanguagePack | Should -Be $false $installStatus.SetupRunning | Should -Be $false $installStatus.SetupComplete | Should -Be $true $installStatus.ExchangePresent | Should -Be $true $installStatus.ShouldStartInstall | Should -Be $false } } Context 'When Exchange Setup has partially completed' { It 'Should indicate that Exchange is present, but setup is not complete, and recommend starting an install' { Mock -CommandName Get-ShouldInstallLanguagePack -MockWith { return $false } Mock -CommandName Get-IsSetupRunning -MockWith { return $false } Mock -CommandName Get-IsSetupComplete -MockWith { return $false } Mock -CommandName Get-IsExchangePresent -MockWith { return $true } $installStatus = Get-InstallStatus @getInstallStatusParams $installStatus.ShouldInstallLanguagePack | Should -Be $false $installStatus.SetupRunning | Should -Be $false $installStatus.SetupComplete | Should -Be $false $installStatus.ExchangePresent | Should -Be $true $installStatus.ShouldStartInstall | Should -Be $true } } Context 'When Exchange Setup is currently running' { It 'Should indicate that Exchange is present and that setup is running' { Mock -CommandName Get-ShouldInstallLanguagePack -MockWith { return $false } Mock -CommandName Get-IsSetupRunning -MockWith { return $true } Mock -CommandName Get-IsSetupComplete -MockWith { return $false } Mock -CommandName Get-IsExchangePresent -MockWith { return $true } $installStatus = Get-InstallStatus @getInstallStatusParams $installStatus.ShouldInstallLanguagePack | Should -Be $false $installStatus.SetupRunning | Should -Be $true $installStatus.SetupComplete | Should -Be $false $installStatus.ExchangePresent | Should -Be $true $installStatus.ShouldStartInstall | Should -Be $false } } Context 'When a Language Pack install is requested, and the Language Pack has not been installed' { It 'Should indicate that setup has completed and a language pack Should -Be installed' { Mock -CommandName Get-ShouldInstallLanguagePack -MockWith { return $true } Mock -CommandName Get-IsSetupRunning -MockWith { return $false } Mock -CommandName Get-IsSetupComplete -MockWith { return $true } Mock -CommandName Get-IsExchangePresent -MockWith { return $true } $installStatus = Get-InstallStatus @getInstallStatusParams $installStatus.ShouldInstallLanguagePack | Should -Be $true $installStatus.SetupRunning | Should -Be $false $installStatus.SetupComplete | Should -Be $true $installStatus.ExchangePresent | Should -Be $true $installStatus.ShouldStartInstall | Should -Be $true } } } Describe 'xExchangeHelper\Get-PreviousError' -Tag 'Helper' { Context 'After an error occurs' { It 'Should retrieve the most recent error' { # First get whatever error is currently on top of the stack $initialError = Get-PreviousError # Cause an error by trying to get a non-existent item Get-ChildItem -Path $guid1 -ErrorAction SilentlyContinue $firstError = Get-PreviousError # Cause another error by trying to get a non-existent item Get-ChildItem -Path $guid2 -ErrorAction SilentlyContinue $secondError = Get-PreviousError $initialError -ne $firstError | Should -Be $true $secondError -ne $firstError | Should -Be $true $firstError -eq $null | Should -Be $false $secondError -eq $null | Should -Be $false } } Context 'When an error has not occurred' { It 'Should return the same previous error with each call' { # Run Get-PreviousError twice in a row so we can later ensure results are the same $error1 = Get-PreviousError $error2 = Get-PreviousError # Run a command that should always succeed Get-ChildItem | Out-Null # Get the previous error one more time $error3 = Get-PreviousError $error1 -eq $error2 | Should -Be $true $error1 -eq $error3 | Should -Be $true } } } Describe 'xExchangeHelper\Assert-NoNewError' -Tag 'Helper' { Context 'After a new, unique error occurs' { It 'Should throw an exception' { # First get whatever error is currently on top of the stack $initialError = Get-PreviousError # Cause an error by trying to get a non-existent item Get-ChildItem $guid1 -ErrorAction SilentlyContinue $caughtException = $false try { Assert-NoNewError -CmdletBeingRun "Get-ChildItem" -PreviousError $initialError } catch { $caughtException = $true } $caughtException | Should -Be $true } } Context 'When an error has not occurred' { It 'Should not throw an exception' { # First get whatever error is currently on top of the stack $initialError = Get-PreviousError # Run a command that should always succeed Get-ChildItem | Out-Null $caughtException = $false try { Assert-NoNewError -CmdletBeingRun "Get-ChildItem" -PreviousError $initialError } catch { $caughtException = $true } $caughtException | Should -Be $false } } } Describe 'xExchangeHelper\Assert-IsSupportedWithExchangeVersion' -Tag 'Helper' { $supportedVersionTestCases = @( @{Name='2013 Operation Supported on 2013'; ExchangeVersion='2013'; SupportedVersions='2013'} @{Name='2013 Operation Supported on 2013,2019'; ExchangeVersion='2013'; SupportedVersions='2013','2019'} ) $notSupportedVersionTestCases = @( @{Name='2013 Operation Not Supported on 2016'; ExchangeVersion='2013'; SupportedVersions='2016'} @{Name='2013 Operation Not Supported on 2016,2019'; ExchangeVersion='2013'; SupportedVersions='2016','2019'} ) Context 'When a supported version is passed' { It 'Should not throw an exception' -TestCases $supportedVersionTestCases { param($Name, $ExchangeVersion, $SupportedVersions) Mock -CommandName Get-ExchangeVersion -MockWith { return $ExchangeVersion } $caughtException = $false try { Assert-IsSupportedWithExchangeVersion -ObjectOrOperationName $Name -SupportedVersions $SupportedVersions } catch { $caughtException = $true } $caughtException | Should -Be $false } } Context 'When an unsupported version is passed' { It 'Should throw an exception' -TestCases $notSupportedVersionTestCases { param($Name, $ExchangeVersion, $SupportedVersions) Mock -CommandName Get-ExchangeVersion -MockWith { return $ExchangeVersion } $caughtException = $false try { Assert-IsSupportedWithExchangeVersion -ObjectOrOperationName $Name -SupportedVersions $SupportedVersions } catch { $caughtException = $true } $caughtException | Should -Be $true } } } } } finally { Invoke-TestCleanup } |