Tests/Unit/PoShMon.OSMonitoring/Test-CPULoad.Tests.ps1
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$rootPath = Join-Path (Split-Path -Parent $MyInvocation.MyCommand.Path) -ChildPath ('..\..\..\') -Resolve Remove-Module PoShMon -ErrorAction SilentlyContinue Import-Module (Join-Path $rootPath -ChildPath "PoShMon.psd1") class CounterSampleMock { [string]$Path [double]$CookedValue CounterSampleMock ([string]$NewPath, [double]$NewCookedValue) { $this.Path = $NewPath; $this.CookedValue = $NewCookedValue; } } class CounterResultsMock { [datetime]$Timestamp [CounterSampleMock[]]$CounterSamples CounterResultsMock ([datetime]$NewTimestamp, [CounterSampleMock[]]$NewCounterSamples) { $this.Timestamp = $NewTimestamp; $this.CounterSamples = $NewCounterSamples; } } Describe "Test-CPULoad" { It "Should throw an exception if no OperatingSystem configuration is set" { $poShMonConfiguration = New-PoShMonConfiguration { } { Test-CPULoad $poShMonConfiguration } | Should throw } It "Should return a matching output structure" { Mock -CommandName Get-Counter -MockWith { $sample1 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 12.345) $sample2 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 56.789) $samples = @($sample1, $sample2) $timestamp = Get-Date return [CounterResultsMock]::new($timestamp, $samples) } $poShMonConfiguration = New-PoShMonConfiguration { General -ServerNames '.' OperatingSystem } $actual = Test-CPULoad $poShMonConfiguration $actual.Keys.Count | Should Be 5 $actual.ContainsKey("NoIssuesFound") | Should Be $true $actual.ContainsKey("OutputHeaders") | Should Be $true $actual.ContainsKey("OutputValues") | Should Be $true $actual.ContainsKey("SectionHeader") | Should Be $true $actual.ContainsKey("ElapsedTime") | Should Be $true $headers = $actual.OutputHeaders $headers.Keys.Count | Should Be 2 $values1 = $actual.OutputValues[0] $values1.Keys.Count | Should Be 3 $values1.ContainsKey("ServerName") | Should Be $true $values1.ContainsKey("CPULoad") | Should Be $true $values1.ContainsKey("Highlight") | Should Be $true } It "Should write the expected Verbose output" { Mock -CommandName Get-Counter -MockWith { $sample1 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 12.345) $sample2 = [CounterSampleMock]::new("\\Server2\\processor(_total)\% processor time", 56.789) $samples = @($sample1, $sample2) $timestamp = Get-Date return [CounterResultsMock]::new($timestamp, $samples) } $poShMonConfiguration = New-PoShMonConfiguration { General -ServerNames '.' OperatingSystem } $actual = Test-CPULoad $poShMonConfiguration -Verbose $output = $($actual = Test-CPULoad $poShMonConfiguration -Verbose) 4>&1 $output.Count | Should Be 4 $output[0].ToString() | Should Be "Initiating 'Server CPU Load Review' Test..." $output[1].ToString() | Should Be "`tSERVER1: 12%" $output[2].ToString() | Should Be "`tSERVER2: 57%" $output[3].ToString() | Should Be "Complete 'Server CPU Load Review' Test, Issues Found: No" } It "Should write the expected Warning output" { Mock -CommandName Get-Counter -MockWith { $sample1 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 12.345) $sample2 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 97.789) $samples = @($sample1, $sample2) $timestamp = Get-Date return [CounterResultsMock]::new($timestamp, $samples) } $poShMonConfiguration = New-PoShMonConfiguration { General -ServerNames '.' OperatingSystem } $output = $($actual = Test-CPULoad $poShMonConfiguration) 3>&1 $output.Count | Should Be 1 $output[0].ToString() | Should Be "`tCPU Load (98%) is above variance threshold (90%)" } It "Should not warn on CPU below threshold" { Mock -CommandName Get-Counter -MockWith { $sample1 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 12.345) $sample2 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 56.789) $samples = @($sample1, $sample2) $timestamp = Get-Date return [CounterResultsMock]::new($timestamp, $samples) } $poShMonConfiguration = New-PoShMonConfiguration { General -ServerNames 'localhost' OperatingSystem } $actual = Test-CPULoad $poShMonConfiguration $actual.NoIssuesFound | Should Be $true $actual.OutputValues.GroupOutputValues.Highlight.Count | Should Be 0 } It "Should warn on CPU above threshold" { Mock -CommandName Get-Counter -MockWith { $sample1 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 12.345) $sample2 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 97.789) $samples = @($sample1, $sample2) $timestamp = Get-Date return [CounterResultsMock]::new($timestamp, $samples) } $poShMonConfiguration = New-PoShMonConfiguration { General -ServerNames 'localhost' OperatingSystem } $actual = Test-CPULoad $poShMonConfiguration $actual.NoIssuesFound | Should Be $false $actual.OutputValues.Highlight.Count | Should Be 1 $actual.OutputValues.Highlight | Should Be 'CPULoad' } It "Should use the configuration threshold properly" { Mock -CommandName Get-Counter -MockWith { $sample1 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 12.345) $sample2 = [CounterSampleMock]::new("\\Server1\\processor(_total)\% processor time", 57.789) $samples = @($sample1, $sample2) $timestamp = Get-Date return [CounterResultsMock]::new($timestamp, $samples) } $poShMonConfiguration = New-PoShMonConfiguration { General -ServerNames 'localhost' OperatingSystem -CPULoadThresholdPercent 50 } $actual = Test-CPULoad $poShMonConfiguration $actual.NoIssuesFound | Should Be $false $actual.OutputValues.Highlight.Count | Should Be 1 $actual.OutputValues.Highlight | Should Be 'CPULoad' } } |