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# Licensed under the MIT License.
<############################################################################################
# File: Export-Counter.Tests.ps1
# Provides Pester tests for the Export-Counter cmdlet.
############################################################################################>
# Counter CmdLets are removed see issue #4272
# Tests are disabled
return
$cmdletName = "Export-Counter"
. "$PSScriptRoot/CounterTestHelperFunctions.ps1"
$rootFilename = "exportedCounters"
$filePath = $null
$counterNames = @(
(TranslateCounterPath "\Memory\Available Bytes")
(TranslateCounterPath "\Processor(*)\% Processor Time")
(TranslateCounterPath "\Processor(_Total)\% Processor Time")
(TranslateCounterPath "\PhysicalDisk(_Total)\Current Disk Queue Length")
(TranslateCounterPath "\PhysicalDisk(_Total)\Disk Bytes/sec")
(TranslateCounterPath "\PhysicalDisk(_Total)\Disk Read Bytes/sec")
)
$counterValues = $null
# Test the results of Export-Counter by importing the exported
# counters and comparing the two sets
function CheckExportResults
{
Test-Path $filePath | Should -BeTrue
$importedCounterValues = Import-Counter $filePath
CompareCounterSets $counterValues $importedCounterValues
}
# Run a test case
function RunTest($testCase)
{
It "$($testCase.Name)" -Skip:$(SkipCounterTests) {
$getCounterParams = ""
if ($testCase.ContainsKey("GetCounterParams"))
{
$getCounterParams = $testCase.GetCounterParams
}
$counterValues = &([ScriptBlock]::Create("Get-Counter -Counter `$counterNames $getCounterParams"))
# build up a command
$filePath = ""
$pathParam = ""
$formatParam = ""
if ($testCase.ContainsKey("Path"))
{
$filePath = $testCase.Path
}
else
{
if ($testCase.ContainsKey("FileFormat"))
{
$formatParam = "-FileFormat $($testCase.FileFormat)"
$filePath = Join-Path $script:outputDirectory "$rootFilename.$($testCase.FileFormat)"
}
else
{
$filePath = Join-Path $script:outputDirectory "$rootFilename.blg"
}
}
if ($testCase.NoDashPath)
{
$pathParam = $filePath
}
else
{
$pathParam = "-Path $filePath"
}
$cmd = "$cmdletName $pathParam $formatParam -InputObject `$counterValues $($testCase.Parameters) -ErrorAction Stop"
# Use $cmd to debug a test failure
# Write-Host "Command to run: $cmd"
if ($testCase.CreateFileFirst)
{
if (-not (Test-Path $filePath))
{
New-Item $filePath -ItemType file
}
}
try
{
if ($testCase.ContainsKey("Script"))
{
# Here we want to run the command then do our own post-run checks
$sb = [ScriptBlock]::Create($cmd)
&$sb
&$testCase.Script
}
else
{
# Here we expect and want the command to fail
$sb = [ScriptBlock]::Create($cmd)
{ &$sb } | Should -Throw -ErrorId $testCase.ExpectedErrorId
}
}
finally
{
if ($filePath)
{
Remove-Item $filePath -ErrorAction SilentlyContinue
}
}
}
}
Describe "CI tests for Export-Counter cmdlet" -Tags "CI" {
BeforeAll {
$script:outputDirectory = $testDrive
}
$testCases = @(
@{
Name = "Can export BLG format"
FileFormat = "blg"
GetCounterParams = "-MaxSamples 5"
Script = { CheckExportResults }
}
@{
Name = "Exports BLG format by default"
GetCounterParams = "-MaxSamples 5"
Script = { CheckExportResults }
}
)
foreach ($testCase in $testCases)
{
RunTest $testCase
}
}
Describe "Feature tests for Export-Counter cmdlet" -Tags "Feature" {
BeforeAll {
$script:outputDirectory = $testDrive
}
Context "Validate incorrect parameter usage" {
$testCases = @(
@{
Name = "Fails when given invalid path"
Path = "c:\DAD288C0-72F8-47D3-8C54-C69481B528DF\counterExport.blg"
ExpectedErrorId = "FileCreateFailed,Microsoft.PowerShell.Commands.ExportCounterCommand"
}
@{
Name = "Fails when given null path"
Path = "`$null"
ExpectedErrorId = "ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.ExportCounterCommand"
}
@{
Name = "Fails when -Path specified but no path given"
Path = ""
ExpectedErrorId = "MissingArgument,Microsoft.PowerShell.Commands.ExportCounterCommand"
}
@{
Name = "Fails when given -Circular without -MaxSize"
Parameters = "-Circular"
ExpectedErrorId = "CounterCircularNoMaxSize,Microsoft.PowerShell.Commands.ExportCounterCommand"
}
@{
Name = "Fails when given -Circular with zero -MaxSize"
Parameters = "-Circular -MaxSize 0"
ExpectedErrorId = "CounterCircularNoMaxSize,Microsoft.PowerShell.Commands.ExportCounterCommand"
}
@{
Name = "Fails when -MaxSize < zero"
Parameters = "-MaxSize -2"
ExpectedErrorId = "CannotConvertArgumentNoMessage,Microsoft.PowerShell.Commands.ExportCounterCommand"
}
)
foreach ($testCase in $testCases)
{
RunTest $testCase
}
}
Context "Export tests" {
$testCases = @(
@{
Name = "Fails when output file exists"
CreateFileFirst = $true # the output file will be created before the test command runs
ExpectedErrorId = "CounterFileExists,Microsoft.PowerShell.Commands.ExportCounterCommand"
}
@{
Name = "Can force overwriting existing file"
Parameters = "-Force"
Script = { Test-Path $filePath | Should -BeTrue }
}
@{
Name = "Can export BLG format"
FileFormat = "blg"
GetCounterParams = "-MaxSamples 5"
Script = { CheckExportResults }
}
@{
Name = "Exports BLG format by default"
GetCounterParams = "-MaxSamples 5"
Script = { CheckExportResults }
}
@{
Name = "Can export CSV format"
FileFormat = "csv"
GetCounterParams = "-MaxSamples 2"
Script = { CheckExportResults }
}
@{
Name = "Can export TSV format"
FileFormat = "tsv"
GetCounterParams = "-MaxSamples 5"
Script = { CheckExportResults }
}
)
foreach ($testCase in $testCases)
{
RunTest $testCase
}
}
}
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