106 lines
3.3 KiB
PowerShell
106 lines
3.3 KiB
PowerShell
Describe 'Test for conversion b/w script block and delegate' -Tags "CI" {
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BeforeAll {
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function lineno
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{
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$myInvocation.ScriptLineNumber
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}
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function Generate-ArgumentTypesAndParameters
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{
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param([int] $num, [ref] $parameters, [ref]$argumentTypes, [bool]$hasReturn = $false)
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For($j = 1; $j -le $num; $j++)
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{
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$ran = Get-Random -Minimum 1 -Maximum 3
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$type = [Int32]
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switch ($ran)
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{
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1 { $type = [Int32]; break}
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2 { $type = [string]; break}
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3 { $type = [Hashtable]; break}
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}
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$argumentTypes.Value += $type;
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if((-not $hasReturn) -or ($j -lt $num ) ) {
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$parameters.Value += Get-Value($type)
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}
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}
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}
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function Get-Value
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{
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param([type] $t)
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if ($t -eq [Int32]) { 100 }
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elseif($t -eq [string]) { 'abc' }
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elseif ($t -eq [Hashtable]) {@{a = 'foo'} }
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}
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}
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#0 arg, no return
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It 'System.Action' {
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([System.Action]{ $script:gl=lineno; $args.Length | Should Be 0 }).Invoke()
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($gl + 1) | Should Be (lineno)
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}
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# multiple args, no return
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For($i = 1; $i -le 8; $i++)
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{
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$str = 'System.Action`{0}' -f $i
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Context $str {
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$gt = [object].Assembly.GetType($str)
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$parameters = @()
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$argumentTypes=@()
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Generate-ArgumentTypesAndParameters $i ([ref] $parameters) ([ref] $argumentTypes)
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$ct = $gt.MakeGenericType($argumentTypes)
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$func = { $script:gl=lineno; $args.Length | Should Be $i } -as $ct
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$func.DynamicInvoke($parameters)
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It '$gl + 2' { ($gl + 2) | Should Be (lineno) }
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}
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}
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#0 arg with return value
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It 'System.Func[Int32]' {
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([System.Func[Int32]]{ $script:gl=lineno; $args.Length }).Invoke() | Should Be 0
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($gl + 1) | Should Be (lineno)
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}
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It 'System.Func[string]' {
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([System.Func[string]]{ $script:gl=lineno; 'hello' }).Invoke() | Should Be 'hello'
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($gl + 1) | Should Be (lineno)
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}
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It 'System.Func[hashtable]' {
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(([System.Func[hashtable]]{ $script:gl=lineno; @{a = 'foo' }}).Invoke()).a | Should Be 'foo'
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($gl + 1) | Should Be (lineno)
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}
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#multiple args, differnt return type
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For($i = 2; $i -le 9; $i++)
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{
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$str = 'System.Func`{0}' -f $i
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Context $str {
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$gt = [object].Assembly.GetType($str)
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$parameters = @()
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$argumentTypes=@()
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Generate-ArgumentTypesAndParameters $i ([ref] $parameters) ([ref] $argumentTypes) $true
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$v= Get-Value($argumentTypes[$i-1])
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$ct = $gt.MakeGenericType($argumentTypes)
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$func = { $script:gl=lineno; $null = ($args.Length | Should Be ($i-1)); $v } -as $ct
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$t = $func.DynamicInvoke($parameters)
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It '$gl + 2' { ($gl + 2) | Should Be (lineno) }
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if ($argumentTypes[$i-1] -eq [Hashtable] )
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{
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It '$t.a' { $t.a | Should Be $v.a }
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}
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else
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{
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It '$t' { $t | Should Be $v }
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}
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}
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}
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} |