Test/Pester.3.3.8/tools/Functions/In.ps1

function In {
<#
.SYNOPSIS
A convenience function that executes a scrit from a specified path.
 
.DESCRIPTION
Before the script block passed to the execute parameter is invoked,
the current location is set to the path specified. Once the script
block has been executed, the location will be reset to the location
the script was in prior to calling In.
 
.PARAMETER Path
The path that the execute block will be executed in.
 
.PARAMETER execute
The script to be executed in the path provided.
 
#>


param(
    $path,
    [ScriptBlock] $execute
)
    Assert-DescribeInProgress -CommandName In

    $old_pwd = $pwd
    pushd $path
    $pwd = $path
    try {
        & $execute
    } finally {
        popd
        $pwd = $old_pwd
    }
}