PSFramework

1.6.201

tests/functions/tabexpansion/teppSystem.Tests.ps1

Describe 'Completion tests: Tepp System' {
    BeforeAll {
        function Complete
        {
            [CmdletBinding()]
            param (
                [string]
                $Expression
            )
            process
            {
                [System.Management.Automation.CommandCompletion]::CompleteInput(
                    $Expression,
                    $Expression.Length,
                    $null
                ).CompletionMatches
            }
        }
        
        #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 -Expression 'Get-Alcohol -Type B').CompletionText | Should -Be Beer
    }
    It 'can complete a completion dependent on another parameter value' {
        (Complete -Expression 'Get-Alcohol -Type Beer -Unit M').CompletionText | Should -Be 'Maß'
    }
}