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Get-Content -Head and -Tail disallow negative values and cleanup #19715

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merged 15 commits into from
Jun 21, 2023
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Get-Content -Head and -Tail disallow negative values and cleanup #19715

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TotalCount {get; set;}
CarloToso May 23, 2023
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Tail { get; set; }
CarloToso May 23, 2023
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Add comment Tail
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add {} while, for
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remove remainder
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Add {} if
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var, Logs
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fast return
CarloToso May 25, 2023
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remove unnecessary if
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fix comment
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Add Tests
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@CarloToso
CarloToso committed Jun 9, 2023
commit 434dfe8b676b44a225589926e80ccc6a52958e52
12 changes: 12 additions & 0 deletions test/powershell/Modules/Microsoft.PowerShell.Management/Get-Content.Tests.ps1
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Expand Up @@ -72,6 +72,14 @@ Describe "Get-Content" -Tags "CI" {
Get-Content -Path $testPath2 -Last 1 | Should -BeExactly $fifthline
}

It 'Verifies -TotalCount reports a ParameterArgumentValidationError error for negative values' {
Get-Content -Path $testPath2 -TotalCount -2 | Should -Throw -ErrorId 'ParameterArgumentValidationError,Microsoft.PowerShell.Commands.GetContentCommand'
}

It 'Verifies -Tail reports a ParameterArgumentValidationError error for negative values' {
Get-Content -Path $testPath2 -Tail -2 | Should -Throw -ErrorId 'ParameterArgumentValidationError,Microsoft.PowerShell.Commands.GetContentCommand'
}

It "Should be able to get content within a different drive" {
Push-Location env:
$expectedoutput = [Environment]::GetEnvironmentVariable("PATH");
Expand Down Expand Up @@ -271,6 +279,10 @@ Describe "Get-Content" -Tags "CI" {
Get-Content -Path $testPath -TotalCount 0 | Should -BeNullOrEmpty
}

It "Should return no content when -Tail value is 0" {
Get-Content -Path $testPath -Tail 0 | Should -BeNullOrEmpty
}

It "Should throw TailAndHeadCannotCoexist when both -Tail and -TotalCount are used" {
{
Get-Content -Path $testPath -Tail 1 -TotalCount 1 -ErrorAction Stop
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