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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"$input type in advanced functions","articleBody":"We have a test for `$input` type behavior in advanced functions (functions that are cmdlets).\n\n``` powershell\nIt '$input Type should be enumerator' {\n        function from_begin { [cmdletbinding()]param() begin { Write-Output -NoEnumerate $input } }\n        function from_process { [cmdletbinding()]param() process { Write-Output -NoEnumerate $input } }\n        function from_end { [cmdletbinding()]param() end { Write-Output -NoEnumerate $input } }\n\n        (from_begin) -is [System.Collections.IEnumerator] | Should Be $true\n        (from_process) -is [System.Collections.IEnumerator] | Should Be $true\n        (from_end) -is [System.Collections.IEnumerator] | Should Be $true\n    } \n```\n\nhttps://github.com/PowerShell/PowerShell/blob/b731549a198c538d0e5e3ca4c50183f988b5f7e2/test/powershell/Language/Parser/AutomaticVariables.Tests.ps1#L3\n\nThis tests works fine in PS v2. Since then, the behavior changed to this\n\n``` powershell\n        (from_begin) -is [System.Collections.ArrayList] | Should Be $true\n        (from_process) -is [System.Collections.ArrayList] | Should Be $true\n        (from_end) -is [System.Object[]] | Should Be $true\n```\n\nWhich is pretty inconsistent, but exists since v3.\n\n@lzybkr was trying to fix it (back to v2 behavior) and it broke a couple customer scenarios.\n\nPlan: we will gover feedback about this issue and may consider go thru breaking change process.\nMeanwhile, I'm marking the test as `-Skip`\n","author":{"url":"https://github.com/vors","@type":"Person","name":"vors"},"datePublished":"2016-07-29T00:48:35.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/1563/PowerShell/issues/1563"}