78 lines
3.1 KiB
PowerShell
78 lines
3.1 KiB
PowerShell
# Copyright (c) Microsoft Corporation.
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# Licensed under the MIT License.
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Describe "Native streams behavior with PowerShell" -Tags 'CI' {
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BeforeAll {
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$powershell = Join-Path -Path $PSHOME -ChildPath "pwsh"
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}
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Context "Error stream" {
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# we are using powershell itself as an example of a native program.
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# we can create a behavior we want on the fly and test complex scenarios.
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$error.Clear()
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$command = [string]::Join('', @(
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'[Console]::Error.Write("foo`n`nbar`n`nbaz"); ',
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'[Console]::Error.Write("middle"); ',
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'[Console]::Error.Write("foo`n`nbar`n`nbaz")'
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))
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$out = & $powershell -noprofile -command $command 2>&1
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# this check should be the first one, because $error is a global shared variable
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It 'should not add records to $error variable' {
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$error.Count | Should -Be 0
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}
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It 'uses ErrorRecord object to return stderr output' {
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($out | Measure-Object).Count | Should -BeGreaterThan 1
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$out[0] | Should -BeOfType System.Management.Automation.ErrorRecord
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$out[0].FullyQualifiedErrorId | Should -Be 'NativeCommandError'
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$out | Select-Object -Skip 1 | ForEach-Object {
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$_ | Should -BeOfType System.Management.Automation.ErrorRecord
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$_.FullyQualifiedErrorId | Should -Be 'NativeCommandErrorMessage'
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}
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}
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It 'uses correct exception messages for error stream' {
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($out | Measure-Object).Count | Should -Be 9
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$out[0].Exception.Message | Should -BeExactly 'foo'
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$out[1].Exception.Message | Should -BeExactly ''
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$out[2].Exception.Message | Should -BeExactly 'bar'
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$out[3].Exception.Message | Should -BeExactly ''
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$out[4].Exception.Message | Should -BeExactly 'bazmiddlefoo'
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$out[5].Exception.Message | Should -BeExactly ''
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$out[6].Exception.Message | Should -BeExactly 'bar'
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$out[7].Exception.Message | Should -BeExactly ''
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$out[8].Exception.Message | Should -BeExactly 'baz'
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}
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It 'preserves error stream as is with Out-String' {
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($out | Out-String).Replace("`r", '') | Should -BeExactly "foo`n`nbar`n`nbazmiddlefoo`n`nbar`n`nbaz`n"
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}
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It 'does not get truncated or split when redirected' {
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$longtext = "0123456789"
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while ($longtext.Length -lt [console]::WindowWidth) {
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$longtext += $longtext
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}
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& $powershell -c "& { [Console]::Error.WriteLine('$longtext') }" 2>&1 > $testdrive\error.txt
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$e = Get-Content -Path $testdrive\error.txt
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$e.Count | Should -Be 1
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$e | Should -BeExactly $longtext
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}
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}
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}
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Describe 'piping powershell objects to finished native executable' -Tags 'CI' {
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It 'doesn''t throw any exceptions, when we are piping to the closed executable' {
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1..3 | ForEach-Object {
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Start-Sleep -Milliseconds 100
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# yield some multi-line formatted object
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@{'a' = 'b'}
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} | testexe -echoargs | Should -BeNullOrEmpty
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}
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}
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