posh-HumpCompletion

0.4.1

posh-HumpCompletion.tests.ps1

$here = Split-Path -Parent $MyInvocation.MyCommand.Path
$sut = (Split-Path -Leaf $MyInvocation.MyCommand.Path).Replace(".tests.", ".")
$global:poshhumpSkipTabCompletionInstall = $true
$global:poshhumpLoadCommandsSync = $true
. "$here\common.ps1"
. "$here\$sut"

$global:HumpCompletionCommandCache = $null #clear cache in case left over from installation etc!

Describe "GetCommandWithVerbAndHumpSuffix" {
    It "handles single hump" {
        $result = GetCommandWithVerbAndHumpSuffix "Get-Command"
        ($result.Verb) | Should Be 'Get'
        ($result.SuffixHumpForm) | Should Be 'C'
    }
    It "handles multiple humps" {
        $result = GetCommandWithVerbAndHumpSuffix "Get-ChildItem"
        ($result.Verb) | Should Be 'Get'
        ($result.SuffixHumpForm) | Should Be 'CI'
    }
}
Describe "GetWildcardForm" {
    It "returns wildcard for null" {
        GetWildcardForm $null | Should Be "*"
    }
    It "returns wildcard for empty string" {
        GetWildcardForm "" | Should Be "*"
    }        
    It "returns multiple wildcard for multihump string" {
        GetWildcardForm "AzRV" | Should Be "Az*R*V*"
    }
    It "ignores leading dash in parameter names" {
        GetWildcardForm "-ABC" | Should Be "-A*B*C*"
    }
}
function PoshTabExpansion2Wrapper ($line, $index = -1) {
    Clear-HumpCompletionCommandCache
    $tokens = $null;
    if ($index -eq -1) {
        $index = $line.Length
    }
    $ast = [System.Management.Automation.Language.Parser]::ParseInput($line, [ref]$tokens, [ref]$null)
    PoshHumpTabExpansion2 $ast $index
}
Describe "PoshHumpTabExpansion2 - command completion" {
    Mock Get-Command { @( 
            [PSCustomObject] @{'Name' = 'Get-Command'},
            [PSCustomObject] @{'Name' = 'Get-ChildItem'},
            [PSCustomObject] @{'Name' = 'Get-Content'},
            [PSCustomObject] @{'Name' = 'Set-Content'},
            [PSCustomObject] @{'Name' = 'Get-CimInstance'},
            [PSCustomObject] @{'Name' = 'Switch-AzureMode'}        
        )}
    It "ignores commands when no matching prefix" {
        , (PoshTabExpansion2Wrapper "Foo-C").CompletionMatches | Should Be $null
    }
    It "provides matches filtered to prefix" {
        , (PoshTabExpansion2Wrapper "Set-C").CompletionMatches | Should MatchArrayOrdered @('Set-Content') # i.e. doesn't match "Command"
    }
    It "matches multiple items (including partial matches)" {
        # TODO - want to have this ordered by exact hump match first!
        #,(PoshHumpTabExpansion "Get-C") | Should MatchArrayOrdered @('Get-Content', 'Get-Command', 'Get-ChildItem', 'Get-CimInstance')
        , (PoshTabExpansion2Wrapper "Get-C").CompletionMatches | Should MatchArrayOrdered @('Get-ChildItem', 'Get-CimInstance', 'Get-Command', 'Get-Content')
    }
    It "matches with lower-case filter refinement" {
        # TODO - want to have this ordered by exact hump match first!
        #,(PoshHumpTabExpansion "Get-C") | Should MatchArrayOrdered @('Get-Content', 'Get-Command', 'Get-ChildItem', 'Get-CimInstance')
        , (PoshTabExpansion2Wrapper "Get-ChI").CompletionMatches | Should MatchArrayOrdered @('Get-ChildItem')
    }
    It "matches multiple items - multihump (including partial matches)" {
        , (PoshTabExpansion2Wrapper "Get-CI").CompletionMatches | Should MatchArrayOrdered @('Get-ChildItem', 'Get-CimInstance')
    }
    It "does not complete when trailing spaces" {
        , (PoshTabExpansion2Wrapper "Get-CI ").CompletionMatches | Should Be $null
    }
    It "matches case-insensitively on Verb" {
        , (PoshTabExpansion2Wrapper "set-C").CompletionMatches | Should MatchArrayOrdered @('Set-Content')
    }
    It "sets replacement index/length for completion of simple input" {
        $result = PoshTabExpansion2Wrapper "Set-C"
        $result.ReplacementIndex | Should Be 0
        $result.ReplacementLength | Should Be 5
    }
    It "sets replacement index/length for completion at the start of the input" {
        # 012345678901234567890
        $result = PoshTabExpansion2Wrapper "Get-ChI | Get-Content" 7 
        $result.ReplacementIndex | Should Be 0
        $result.ReplacementLength | Should Be 7
    }
    It "sets replacement index/length for completion at the end of the input" {
        # 0123456789012345
        $result = PoshTabExpansion2Wrapper "Get-ChI | Get-Co" 16
        $result.ReplacementIndex | Should Be 10
        $result.ReplacementLength | Should Be 6
    }
    It "sets replacement index/length for completion at the end of the input with parameter input" {
        # 01234567890123456789
        $result = PoshTabExpansion2Wrapper "Get-ChI | Get-Co foo" 16
        $result.ReplacementIndex | Should Be 10
        $result.ReplacementLength | Should Be 6
    }
}
Describe "PoshHumpTabExpansion2 - parameter completion" {
    Mock GetParameters -ParameterFilter {$commandName -eq "Get-Foo1"} -MockWith { @("-TestOne", "-TestTwo", "-TestThree")}
    Mock GetParameters -ParameterFilter {$commandName -eq "Get-Help"} -MockWith { @("-Category", "-Component", "-Debug", "-Detailed", "-ErrorAction", "-ErrorVariable", "-Examples", "-Full", "-Functionality", "-InformationAction", "-InformationVariable", "-Name", "-Online", "-OutBuffer", "-OutVariable", "-Parameter", "-Path", "-PipelineVariable", "-Role", "-ShowWindow", "-Verbose", "-WarningAction", "-WarningVariable")}
    It "handles simple completion" {
        , (PoshTabExpansion2Wrapper "Get-Help -Fu").CompletionMatches | Should MatchArrayOrdered @("-Full", "-Functionality")
    }
    It "matches with hump completion on capitals" {
        , (PoshTabExpansion2Wrapper "Get-Foo1 -TT").CompletionMatches | Should MatchArrayOrdered @("-TestTwo", "-TestThree")
    }
    It "matches with hump completion on capitals and lowercase" {
        , (PoshTabExpansion2Wrapper "Get-Foo1 -TTw").CompletionMatches | Should MatchArrayOrdered @("-TestTwo")
    }
    It "matches in the middle of the command text" {
        # 01234567890123456
        $result = PoshTabExpansion2Wrapper "Get-Help -Fu -Bar" 12
        $result.ReplacementIndex | Should Be 9
        $result.ReplacementLength | Should Be 3
        , $result.CompletionMatches | Should MatchArrayOrdered @("-Full", "-Functionality")
    }
    It "matches with hump completion on capitals" {
        # 0123456789012345678901234
        $result = PoshTabExpansion2Wrapper "Get-Foo1 -TT | Write-Host" 12
        $result.ReplacementIndex | Should Be 9
        $result.ReplacementLength | Should Be 3
        , $result.CompletionMatches | Should MatchArrayOrdered @("-TestTwo", "-TestThree")
    }
}
Describe "PoshHumpTabExpansion2 - variable completion" {
    BeforeEach {
        Get-Variable poshHumpCompletionTest_* | Remove-Variable -Force -ErrorAction SilentlyContinue
        $poshHumpCompletionTest_TestFoo = "123"
        $poshHumpCompletionTest_TestBar = "123"
        $poshHumpCompletionTest_TestBaz = "123"
    }
    It "handles simple completion" {
        # 012345678901234567890123456789
        $result = PoshTabExpansion2Wrapper "`$poshHumpCompletionTest_TB"
        , ($result).CompletionMatches | Should MatchArrayOrdered @("`$poshHumpCompletionTest_TestBar", "`$poshHumpCompletionTest_TestBaz")
        $result.ReplacementIndex | Should Be 0
        $result.ReplacementLength | Should Be 26
    }
    It "handles completion in the middle of a statement" {
        # 0123456789012 34567890123456789012345678
        $result = PoshTabExpansion2Wrapper "Get-Foo -Bar `$poshHumpCompletionTest_TB | Invoke-Wibble" 38 
        , ($result).CompletionMatches | Should MatchArrayOrdered @("`$poshHumpCompletionTest_TestBar", "`$poshHumpCompletionTest_TestBaz")
        $result.ReplacementIndex | Should Be 13
        $result.ReplacementLength | Should Be 26
    }
}