public/Log-Rotate.Tests.ps1
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$here = Split-Path -Parent $MyInvocation.MyCommand.Path $sut = (Split-Path -Leaf $MyInvocation.MyCommand.Path) -replace '\.Tests\.', '.' . "$here\$sut" Describe "Log-Rotate" -Tag 'Unit' { $initScriptblock = { $configFile = 'foo' Mock Test-Path { $true } Mock Test-Path -ParameterFilter { $Path -eq 'foo' -and !$PathType } { $true } Mock Get-Item { [pscustomobject]@{ FullName = 'foo' } } Mock Test-Path -ParameterFilter { $Path -eq 'foo' -and $PathType } { $false } Mock Get-ChildItem {} Mock Get-Content {} function Compile-Full-Config {} Mock Compile-Full-Config {} function Validate-Full-Config {} Mock Validate-Full-Config {} function New-BlockFactory {} Mock New-BlockFactory { $BlockFactory = [PSCustomObject]@{} $BlockFactory | Add-Member -Name 'Create' -MemberType ScriptMethod -Value {} $BlockFactory | Add-Member -Name 'GetAll' -MemberType ScriptMethod -Value { @{ '/path/to/foo/bar/' = @{ 'LogFiles' = @() 'Options' = @() } } } $BlockFactory } function New-LogFactory {} Mock New-LogFactory { $LogFactory = [PSCustomObject]@{} $LogFactory | Add-Member -Name 'InitStatus' -MemberType ScriptMethod -Value {} $LogFactory | Add-Member -Name 'DumpStatus' -MemberType ScriptMethod -Value {} $LogFactory } function New-LogObject {} Mock New-LogObject {} function Process-Local-Block {} Mock Process-Local-Block {} } Context 'Invalid parameters (Non-Terminating)' { $ErrorActionPreference = 'Continue' It 'errors when config is null' { $invalidConfig = $null $err = Log-Rotate -Config $invalidConfig -ErrorVariable err 2>&1 $err | ? { $_ -is [System.Management.Automation.ErrorRecord] } | % { $_.Exception.Message } | Should -Contain "No config file(s) specified." } It 'errors when config is an non-existing file' { $invalidConfig = 'foo' Mock Test-Path { $false } $err = Log-Rotate -Config $invalidConfig 2>&1 $err | ? { $_ -is [System.Management.Automation.ErrorRecord] } | % { $_.Exception.Message } | Should -Contain "Invalid config path specified: $invalidConfig" } It 'errors when configAsString is null' { $invalidConfigAsString = $null $err = Log-Rotate -ConfigAsString $invalidConfigAsString 2>&1 $err | ? { $_ -is [System.Management.Automation.ErrorRecord] } | % { $_.Exception.Message } | Should -Contain "No config file(s) specified." } } Context 'Invalid parameters (Terminating)' { $ErrorActionPreference = 'Stop' It 'errors when config is null' { $invalidConfig = $null { Log-Rotate -Config $invalidConfig 2>$null } | Should -Throw "No config file(s) specified." } It 'errors when config is an non-existing file' { $invalidConfig = 'foo' Mock Test-Path { $false } 6 { Log-Rotate -Config $invalidConfig 2>$null } | Should -Throw "Invalid config path specified: $invalidConfig" } It 'errors when configAsString is null' { $invalidConfigAsString = $null { Log-Rotate -ConfigAsString $invalidConfigAsString 2>$null } | Should -Throw "No config file(s) specified." } } Context 'Functionality' { $ErrorActionPreference = 'Stop' It 'shows the help' { $help = Log-Rotate -Help $help | Should -Not -Be $null } It 'compiles configuration from one config file' { . $initScriptBlock Mock Compile-Full-Config {} Log-Rotate -config $configFile Assert-MockCalled Compile-Full-Config -Times 1 } It 'compiles configuration from multiple config files' { . $initScriptBlock Mock Test-Path -ParameterFilter { $Path -eq 'foo' -and $PathType } { $false } Mock Compile-Full-Config {} Log-Rotate -config $configFile Assert-MockCalled Compile-Full-Config -Times 1 } It 'validates configuration' { . $initScriptBlock Mock Validate-Full-Config {} Log-Rotate -config $configFile Assert-MockCalled Validate-Full-Config -Times 1 } It 'instantiates singleton BlockFactory' { . $initScriptBlock Mock New-BlockFactory { $BlockFactory = [PSCustomObject]@{} $BlockFactory | Add-Member -Name 'Create' -MemberType ScriptMethod -Value {} $BlockFactory | Add-Member -Name 'GetAll' -MemberType ScriptMethod -Value { @{ '/path/to/foo/bar/' = @{ 'LogFiles' = @() 'Options' = @() } } } $BlockFactory } Log-Rotate -config $configFile Assert-MockCalled New-BlockFactory -Times 1 } It 'instantiates singleton LogFactory' { . $initScriptBlock Log-Rotate -config $configFile Assert-MockCalled New-LogFactory -Times 1 } It 'instantiates singleton LogObject' { . $initScriptBlock Log-Rotate -config $configFile Assert-MockCalled New-LogObject -Times 1 } It 'creates block objects from configuration' { . $initScriptBlock Mock New-BlockFactory { $BlockFactory = [PSCustomObject]@{} $BlockFactory | Add-Member -Name 'Create' -MemberType ScriptMethod -Value { 'create' } $BlockFactory | Add-Member -Name 'GetAll' -MemberType ScriptMethod -Value { @{ '/path/to/foo/bar/' = @{ 'LogFiles' = @() 'Options' = @() } } } $BlockFactory } $result = Log-Rotate -config $configFile $result | Should -Be 'create' } It 'initializes the rotation state file' { . $initScriptBlock Mock New-LogFactory { $LogFactory = [PSCustomObject]@{} $LogFactory | Add-Member -Name 'InitStatus' -MemberType ScriptMethod -Value { 'initstatus' } $LogFactory | Add-Member -Name 'DumpStatus' -MemberType ScriptMethod -Value {} $LogFactory } $result = Log-Rotate -config $configFile $result | Should -Be 'initstatus' } It 'processes a block configuration' { . $initScriptBlock Log-Rotate -config $configFile Assert-MockCalled Process-Local-Block -Times 1 } It 'dumps the rotation state file' { . $initScriptBlock Mock New-LogFactory { $LogFactory = [PSCustomObject]@{} $LogFactory | Add-Member -Name 'InitStatus' -MemberType ScriptMethod -Value {} $LogFactory | Add-Member -Name 'DumpStatus' -MemberType ScriptMethod -Value { 'dumpstatus' } $LogFactory } $result = Log-Rotate -config $configFile $result | Should -Be 'dumpstatus' } It 'Throws no exception only when specified' { . $initScriptBlock Mock Process-Local-Block { Write-Error 'foo' -ErrorAction Continue } # Expect no exception $err = Log-Rotate -config $configFile -ErrorAction Continue 2>&1 $err | ? { $_ -is [System.Management.Automation.ErrorRecord] } | % { $_.Exception.Message } | Should -Be 'foo' } It 'Throws exception only when specified' { . $initScriptBlock Mock Process-Local-Block { Write-Error 'foo' -ErrorAction Stop } # Expect exception { Log-Rotate -config $configFile -ErrorAction Stop } | Should -Throw 'foo' } } } |