PSFramework

1.1.59

tests/functions/tabexpansion/teppSystem.Tepp.ps1

function Complete
{
    [CmdletBinding()]
    param (
        [string]
        $Expression
    )
    process
    {
        [System.Management.Automation.CommandCompletion]::CompleteInput(
            $Expression,
            $Expression.Length,
            $null
        ).CompletionMatches
    }
}

Describe 'Completion tests: Tepp System' {
    #region Define Resources to complete for
    function Get-Alcohol
    {
        [CmdletBinding()]
        Param (
            [string]
            $Type,
            
            [string]
            $Unit = "Pitcher"
        )
        
        Write-Host "Drinking a $Unit of $Type"
    }
    
    # Create scriptblock that collects information and name it
    Register-PSFTeppScriptblock -Name 'alcohol.type' -ScriptBlock { 'Beer', 'Mead', 'Whiskey', 'Wine', 'Vodka', 'Rum (3y)', 'Rum (5y)', 'Rum (7y)' }
    
    # Assign scriptblock to function
    Register-PSFTeppArgumentCompleter -Command Get-Alcohol -Parameter Type -Name 'alcohol.type'
    
    # Create scriptblock that checks what was bound to ' -Type' so far and name it
    Register-PSFTeppScriptblock -Name 'alcohol.unit' -ScriptBlock {
        switch ($fakeBoundParameter.Type)
        {
            'Mead' { 'Mug', 'Horn', 'Barrel' }
            'Wine' { 'Glas', 'Bottle' }
            'Beer' { 'Halbes Maß', 'Maß' }
            default { 'Glas', 'Pitcher' }
        }
    }
    
    # Assign scriptblock to function
    Register-PSFTeppArgumentCompleter -Command Get-Alcohol -Parameter Unit -Name 'alcohol.unit'
    #endregion Define Resources to complete for
    
    It 'can complete a straight completion' {
        Complete 'Get-Alcohol -Type B' | Should -HaveProperty CompletionText -WithValue Beer
    }
    It 'can complete a completion dependent on another parameter value' {
        Complete 'Get-Alcohol -Type Beer -Unit M' | Should -HaveProperty CompletionText -WithValue 'Maß'
    }
}