tests/general/Manifest.Tests.ps1

Describe "Validating the module manifest" {
    $moduleRoot = (Resolve-Path "$global:testroot\..").Path
    $manifest = ((Get-Content "$moduleRoot\McasExtension.psd1") -join "`n") | Invoke-Expression
    Context "Basic resources validation" {
        $files = Get-ChildItem "$moduleRoot\functions" -Recurse -File | Where-Object Name -like "*.ps1"
        It "Exports all functions in the public folder" -TestCases @{ files = $files; manifest = $manifest } {
            
            $functions = (Compare-Object -ReferenceObject $files.BaseName -DifferenceObject $manifest.FunctionsToExport | Where-Object SideIndicator -Like '<=').InputObject
            $functions | Should -BeNullOrEmpty
        }
        It "Exports no function that isn't also present in the public folder" -TestCases @{ files = $files; manifest = $manifest } {
            $functions = (Compare-Object -ReferenceObject $files.BaseName -DifferenceObject $manifest.FunctionsToExport | Where-Object SideIndicator -Like '=>').InputObject
            $functions | Should -BeNullOrEmpty
        }
        
        It "Exports none of its internal functions" -TestCases @{ moduleRoot = $moduleRoot; manifest = $manifest } {
            $files = Get-ChildItem "$moduleRoot\internal\functions" -Recurse -File -Filter "*.ps1"
            $files | Where-Object BaseName -In $manifest.FunctionsToExport | Should -BeNullOrEmpty
        }
    }
    
    Context "Individual file validation" {
        It "The root module file exists" -TestCases @{ moduleRoot = $moduleRoot; manifest = $manifest } {
            Test-Path "$moduleRoot\$($manifest.RootModule)" | Should -Be $true
        }
        
        foreach ($format in $manifest.FormatsToProcess)
        {
            It "The file $format should exist" -TestCases @{ moduleRoot = $moduleRoot; format = $format } {
                Test-Path "$moduleRoot\$format" | Should -Be $true
            }
        }
        
        foreach ($type in $manifest.TypesToProcess)
        {
            It "The file $type should exist" -TestCases @{ moduleRoot = $moduleRoot; type = $type } {
                Test-Path "$moduleRoot\$type" | Should -Be $true
            }
        }
        
        foreach ($assembly in $manifest.RequiredAssemblies)
        {
            if ($assembly -like "*.dll") {
                It "The file $assembly should exist" -TestCases @{ moduleRoot = $moduleRoot; assembly = $assembly } {
                    Test-Path "$moduleRoot\$assembly" | Should -Be $true
                }
            }
            else {
                It "The file $assembly should load from the GAC" -TestCases @{ moduleRoot = $moduleRoot; assembly = $assembly } {
                    { Add-Type -AssemblyName $assembly } | Should -Not -Throw
                }
            }
        }
        
        foreach ($tag in $manifest.PrivateData.PSData.Tags)
        {
            It "Tags should have no spaces in name" -TestCases @{ tag = $tag } {
                $tag -match " " | Should -Be $false
            }
        }
    }
}