72 lines
2.1 KiB
PowerShell
72 lines
2.1 KiB
PowerShell
Describe "Stream writer tests" {
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$targetfile = "writeoutput.txt"
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# A custom function is defined here do handle the debug stream dealing with the confirm prompt
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# that would normally
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function Write-Messages
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{
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[CmdletBinding()]
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param()
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If ($PSBoundParameters['Debug']) { $DebugPreference = 'Continue' }
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Write-Verbose "Verbose message"
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Write-Debug "Debug message"
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}
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function Get-OutputResults
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{
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# Get the contents of the targetfile.
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# Make the array a string for less brittle testing
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$output = $(Get-Content $args[0])
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[String]::Join([Environment]::NewLine, $output )
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return $output
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}
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Context "Redirect Stream Tests" {
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# These tests validate that a stream is actually being written to by redirecting the output of that stream
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AfterEach { Remove-Item $targetfile }
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It "Should write warnings to the warning stream" {
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Write-Warning "Test Warning" 3>&1 > $targetfile
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Get-Content $targetfile | Should Be "Test Warning"
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}
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It "Should write error messages to the error stream" {
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Write-Error "Testing Error" 2>&1 > $targetfile
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$result = Get-OutputResults $targetfile
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# The contents of the error stream should contain the expected text
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$result -match ": Testing Error" | Should Be $true
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}
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It "Should write debug messages to the debug stream" {
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Write-Messages -Debug -EA SilentlyContinue 5>&1 > $targetfile
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$result = Get-OutputResults $targetfile
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# The contents of the debug stream should contain the expected text
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$result -match "Debug Message" | Should Be $true
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}
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It "Should write messages to the verbose stream" {
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Write-Messages -Verbose 4>&1 > $targetfile
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$result = Get-OutputResults $targetfile
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# The contents of the debug stream should contain the expected text
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$result -match "Verbose Message" | Should Be $true
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}
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}
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Context "Error automatic variable" {
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It "Should write error messages to the `$Error automatic variable" {
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Write-Error "Test Error Message" -ErrorAction SilentlyContinue
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$Error[0] | Should Match "Test Error Message"
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}
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}
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}
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