private/Tests/Test-CommandGit.ps1

function Test-CommandGit {
    <#
    .SYNOPSIS
        Returns $true when git is available in the current session PATH.
 
    .NOTES
        Author: David Segura
        Company: Recast Software
        Use Test-InstallGit to check whether Git for Windows is installed via
        the registry. This function only confirms PATH availability.
    #>

    [OutputType([bool])]
    param ()

    return ($null -ne (Get-Command -Name 'git' -ErrorAction SilentlyContinue))
}