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powershell/PSUseOutputTypeCorrectly is a PSScriptAnalyzer diagnostic emitted by tally for PowerShell snippets embedded in Dockerfiles.
PropertyValue
SeverityInformation
CategoryPSScriptAnalyzer
Auto-fixNo

​
Description

A command should return the same type as declared in OutputType. You can get more details by running Get-Help about_Functions_OutputTypeAttribute command in PowerShell.

​
How

Specify that the OutputType attribute lists and the types returned in the cmdlet match.

​
Examples

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Problematic code

function Get-Foo
{
        [CmdletBinding()]
        [OutputType([String])]
        Param(
        )
        return 4
}

​
Correct code

function Get-Foo
{
        [CmdletBinding()]
        [OutputType([String])]
        Param(
        )

        return 'four'
}

​
Source

This rule documentation is adapted from Microsoft’s PSScriptAnalyzer documentation for UseOutputTypeCorrectly, licensed under CC BY 4.0.