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Exporting all format-data definitions and importing them into a pristine session results in missing definitions #11308
Description
The following is an adapted version of a test in Export-FormatData.Tests.ps1 that tests round-tripping of exporting all format data and importing it into a new session, to ensure that all data is preserved.
If you use -PowerShellVersion 5.1 to ensure that all format-data definitions are reported (the need for which will go away with #11270), round-tripping no longer works properly - certain types no longer have format data associated with them after importing.
This may be related to duplicate data existing among the built-in formats - see #11307 - and that perhaps duplicates that cover additional types are not getting imported.
Steps to reproduce
$tmpFile = [IO.Path]::GetTempFileName() + '.ps1xml'
$fd = Get-FormatData -PowerShellVersion 5.1
$fd | Export-FormatData -path $tmpFile -IncludeScriptBlock
$sessionState = [System.Management.Automation.Runspaces.InitialSessionState]::CreateDefault()
$sessionState.Formats.Clear()
$sessionState.Types.Clear()
$runspace = [System.Management.Automation.Runspaces.RunspaceFactory]::CreateRunspace($sessionState)
$runspace.Open()
$runspace.CreatePipeline("Update-FormatData -AppendPath $tmpFile").Invoke()
$actualAllFormat = $runspace.CreatePipeline("Get-FormatData -PowerShellVersion 5.1").Invoke()
Remove-Item $tmpFile
$typesBefore = $fd | % TypeNames | Sort-Object -Unique
$typesAfter = $actualAllFormat | % TypeNames | Sort-Object -Unique
Compare-Object $typesBefore $typesAfter -PassThru | Should -Be $nullExpected behavior
The test should succeed.
Actual behavior
The test fails, because several types no longer have format data associated with them in the new session.
Expected $null, but got @(
'Deserialized.System.RuntimeType',
'Microsoft.Win32.RegistryKey',
'System.IO.FileInfo',
'System.Management.Automation.LineBreakpoint',
'System.Management.Automation.TreatAs.RegistryValue',
'System.Management.Automation.VariableBreakpoint', 'System.Security.Cryptography.X509Certificates.X509Store'
)
Environment data
PowerShell Core v7.0.0-preview.6
Activity
microsoft-github-policy-service commentedon Nov 16, 2023
This issue has not had any activity in 6 months, if this is a bug please try to reproduce on the latest version of PowerShell and reopen a new issue and reference this issue if this is still a blocker for you.
microsoft-github-policy-service commentedon Nov 16, 2023
This issue has not had any activity in 6 months, if this is a bug please try to reproduce on the latest version of PowerShell and reopen a new issue and reference this issue if this is still a blocker for you.
microsoft-github-policy-service commentedon Nov 16, 2023
This issue has not had any activity in 6 months, if this is a bug please try to reproduce on the latest version of PowerShell and reopen a new issue and reference this issue if this is still a blocker for you.
microsoft-github-policy-service commentedon Nov 23, 2023
This issue has been marked as "No Activity" as there has been no activity for 6 months. It has been closed for housekeeping purposes.