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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| if (-not (Get-Module ILAssembler -ea Ignore)) { | ||
| $projectBase = $PSScriptRoot | Split-Path | ||
| $psd1File = (Get-ChildItem $projectBase/Release/ILAssembler/*/ILAssembler.psd1).FullName | ||
|
|
||
| Import-Module $psd1File -Global | ||
| } | ||
|
|
||
| function GetBodyAsShouldOperator { | ||
| param( | ||
| [Parameter(ValueFromPipeline)] | ||
| [System.Delegate] $Delegate | ||
| ) | ||
| process { | ||
| $bytes = $Delegate | GetResolver | GetResolverField m_code | ||
| '| Should -HaveBody {0}' -f ( | ||
| $( | ||
| if ($bytes.Length -gt 1) { '('} | ||
| $bytes.ForEach{ '0x{0:X2}' -f $PSItem } -join ', ' | ||
| if ($bytes.Length -gt 1) { ')'} | ||
| ) -join '') | ||
| } | ||
| } | ||
|
|
||
| function GetResolver { | ||
| param( | ||
| [Parameter(ValueFromPipeline)] | ||
| [Delegate] $Delegate | ||
| ) | ||
| process { | ||
| $dynamicMethod = $Delegate.Method.GetType(). | ||
| GetField('m_owner', 60). | ||
| GetValue($Delegate.Method) | ||
|
|
||
| $dynamicMethod.GetType(). | ||
| GetField('m_resolver', 60). | ||
| GetValue($dynamicMethod) | ||
| } | ||
| } | ||
|
|
||
| function GetResolverField { | ||
| param( | ||
| [string] $FieldName, | ||
|
|
||
| [Parameter(ValueFromPipeline)] | ||
| [object] $Resolver | ||
| ) | ||
| process { | ||
| ,$Resolver.GetType(). | ||
| GetField($FieldName, 60). | ||
| GetValue($Resolver) | ||
| } | ||
| } | ||
|
|
||
| function ShouldHaveBody { | ||
| param( | ||
| $ActualValue, | ||
| $ExpectedValue | ||
| ) | ||
| end { | ||
|
|
||
| function GetFailureMessage { | ||
| param([string] $Reason) | ||
| $failureMessage = "Expected method body to match, but $Reason." + | ||
| [System.Environment]::NewLine + [System.Environment]::NewLine + | ||
| 'Expected: {0}' + [System.Environment]::NewLine + | ||
| 'Actual: {1}' | ||
|
|
||
| return $failureMessage -f ( | ||
| ($ExpectedValue.ForEach{ '0x{0:X2}' -f $PSItem } -join ', '), | ||
| ($code.ForEach{ '0x{0:X2}' -f $PSItem } -join ', ')) | ||
| } | ||
|
|
||
| $ExpectedValue = [byte[]]$ExpectedValue | ||
| $code = [byte[]]($ActualValue | GetResolver | GetResolverField m_code) | ||
|
|
||
| if ($ExpectedValue.Length -ne $code.Length) { | ||
| return [PSCustomObject]@{ | ||
| Succeeded = $false | ||
| FailureMessage = GetFailureMessage 'the byte count did not match' | ||
| } | ||
| } | ||
|
|
||
| for ($i = 0; $i -lt $code.Length; $i++) { | ||
| if ($ExpectedValue[$i] -ne $code[$i]) { | ||
| return [PSCustomObject]@{ | ||
| Succeeded = $false | ||
| FailureMessage = GetFailureMessage "the byte at offset $i did not match" | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return [PSCustomObject]@{ | ||
| Succeeded = $true | ||
| FailureMessage = [string]::Empty | ||
| } | ||
| } | ||
| } | ||
|
|
||
| $pesterModule = Get-Module Pester -ErrorAction Ignore | ||
| if (-not $pesterModule) { | ||
| $pesterModule = Import-Module Pester -ErrorAction Stop -PassThru -Global | ||
| } | ||
|
|
||
| if (-not (& $pesterModule { $AssertionOperators.ContainsKey('HaveBody') })) { | ||
| Add-ShouldOperator -Name HaveBody -Test $function:ShouldHaveBody | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| Describe 'Delegate signatures' { | ||
| BeforeAll { | ||
| . "$($PSCommandPath | Split-Path)/Common.ps1" | ||
| } | ||
|
|
||
| It 'Array expression for no parameters' { | ||
| $d = il { [int]@() } { | ||
| ldc.i4.0 | ||
| ret | ||
| } | ||
|
|
||
| $d | Should -BeOfType ([Func[int]]) | ||
| } | ||
|
|
||
| It 'Parameters in paren expression' { | ||
| $d = il { [int]([int], [string]) } { | ||
| ldc.i4.0 | ||
| ret | ||
| } | ||
|
|
||
| $d | Should -BeOfType ([Func[int, string, int]]) | ||
| } | ||
|
|
||
| It 'Parameters in array expression' { | ||
| $d = il { [int]@([object], [string]) } { | ||
| ldc.i4.0 | ||
| ret | ||
| } | ||
|
|
||
| $d | Should -BeOfType ([Func[object, string, int]]) | ||
| } | ||
|
|
||
| It 'Named parameters' { | ||
| $d = il { [int]([object] $instance, [string] $name) } { | ||
| ldc.i4.0 | ||
| ret | ||
| } | ||
|
|
||
| $d | Should -BeOfType ([Func[object, string, int]]) | ||
| } | ||
|
|
||
| It 'Invoke member expression syntax' { | ||
| $d = il { [int] $_._([object] $instance, [string] $name) } { | ||
| ldc.i4.0 | ||
| ret | ||
| } | ||
|
|
||
| $d | Should -BeOfType ([Func[object, string, int]]) | ||
| } | ||
|
|
||
| It 'Explicit delegate type' { | ||
| $d = il ([Action[int]]) { | ||
| ret | ||
| } | ||
|
|
||
| $d | Should -BeOfType ([Action[int]]) | ||
| } | ||
|
|
||
| It 'Explicit non-standard delegate type' { | ||
| $d = New-IlDelegate ([System.ResolveEventHandler]) { | ||
| ret | ||
| } | ||
|
|
||
| $d | Should -BeOfType ([System.ResolveEventHandler]) | ||
| $method = $d.GetType().GetMethod('Invoke') | ||
| $method.ReturnType | Should -Be ([System.Reflection.Assembly]) | ||
| $method.GetParameters().ParameterType | Should -Be ([object], [System.ResolveEventArgs]) | ||
| } | ||
|
|
||
| It 'Generates delegate type when parameters cannot be generics' { | ||
| $d = il { [bool]([int], [ref] [string], [int+]) } { | ||
| ldc.i4.0 | ||
| ret | ||
| } | ||
|
|
||
| $method = $d.GetType().GetMethod('Invoke') | ||
| $method.ReturnType | Should -Be ([bool]) | ||
| $method.GetParameters().ParameterType | Should -Be ( | ||
| [int], | ||
| [string].MakeByRefType(), | ||
| [int].MakePointerType()) | ||
| } | ||
| } |
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