Pester PS Class

!README.md

I'm attempting (and failing) to run a data-driven Pester v5 test over a PS Class. In the Tests/ directory are the 3 (currently failing) implemetations.

Classes(slash)classes.ps1

using namespace System.Management.Automation

class foo : IValidateSetValuesGenerator  {
    [string[]] GetValidValues() {
        $Values = @(
            'foo'
            'bar'
            'baz'
        )
        return $Values
    }
}

# class fooCollection {
#     [foo[]]$Collection
# }

foo.psd1

@{
    RootModule = '.\foo.psm1'
    ModuleVersion = '0.0'
    VariablesToExport = @(
        'FooHash'
    )
    FunctionsToExport = @(
        'Get-Foo'
    )
    ScriptsToProcess = @(
        'Classes/classes.ps1'
    )
}

foo.psm1

Push-Location $PSScriptRoot

. ./Functions/Get-Foo.ps1

$global:FooHash = @{
    foo = @{}
    bar = @{}
    baz = @{}
}

Export-ModuleMember -Variable FooHash

Pop-Location

Functions(slash)Foo.ps1

function Get-Foo {
    [CmdletBinding()]
    Param(
        [Parameter(Mandatory)]
        [ValidateSet([foo])]
        [string]$Name
    )

    $Name
}

Tests(slash)BeforeAll.tests.ps1

#Requires -Modules foo

Push-Location $PSScriptRoot

BeforeAll {
    . ./../Classes/foo.ps1
}

Describe "FooHash should contain all of type [foo]" {
    It "<_>" -ForEach ($FooHash.GetEnumerator().Name | Sort-Object) {
        $_ | Should -BeIn ([foo]::New().GetValidValues()) 
    }
}

Describe "[foo] should be fully enumerated in `$FooHash" {
    It "<_>" -ForEach ([foo]::New().GetValidValues() | Sort-Object) {
        $FooHash.GetEnumerator().Name | Should -Contain $_
    }
}

Pop-Location

Tests(slash)dotSource.tests.ps1

#Requires -Modules foo

Push-Location $PSScriptRoot

BeforeAll {
    . ./../Classes/foo.ps1
}

Describe "FooHash should contain all of type [foo]" {
    It "<_>" -ForEach ($FooHash.GetEnumerator().Name | Sort-Object) {
        $_ | Should -BeIn ([foo]::New().GetValidValues()) 
    }
}

Describe "[foo] should be fully enumerated in `$FooHash" {
    It "<_>" -ForEach ([foo]::New().GetValidValues() | Sort-Object) {
        $FooHash.GetEnumerator().Name | Should -Contain $_
    }
}

Pop-Location

Tests(slash)InModuleScope.tests.ps1

#Requires -Modules foo

BeforeAll {
    $module = @{
        ModuleName = 'foo'
    }
}

InModuleScope @module {
    Describe "FooHash should contain all of type [foo]" {
        It "<_>" -ForEach ($FooHash.GetEnumerator().Name | Sort-Object) {
            $_ | Should -BeIn ([foo]::New().GetValidValues()) 
        }
    }

    Describe "[foo] should be fully enumerated in `$FooHash" {
        It "<_>" -ForEach ([foo]::New().GetValidValues() | Sort-Object) {
            $FooHash.GetEnumerator().Name | Should -Contain $_
        }
    }
}