MarkdownToHtml.tests.ps1

#
# This is a PowerShell Unit Test file.
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[System.IO.DirectoryInfo]$SCRIPT:moduleDir = Split-Path -Parent $MyInvocation.MyCommand.Path
[System.IO.DirectoryInfo]$SCRIPT:testdata = Join-Path $SCRIPT:moduleDir -ChildPath 'TestData'
[System.IO.DirectoryInfo]$SCRIPT:refdata  = Join-Path $SCRIPT:moduleDir -ChildPath 'ReferenceData'
[System.IO.FileInfo]$SCRIPT:template      = Join-Path $SCRIPT:testdata  -ChildPath 'Template'

Describe 'Convert-MarkdownToHTML' {
    It 'Converts markdown file(s) from ''<Path>'' to HTML' `
       -TestCases @(
           @{Path='markdown/mermaid.md'; ReferencePath='mermaid.html';       ResultPath='TestDrive:/mermaid.html' ;             Extensions = 'diagrams'}
           @{Path='markdown/KaTex.md';   ReferencePath='KaTex.html';         ResultPath='TestDrive:/KaTex.html' ;               Extensions = 'mathematics'}
           @{Path='markdown/KaMaid.md';  ReferencePath='KaMaid.html';        ResultPath='TestDrive:/KaMaid.html' ;              Extensions = 'diagrams','mathematics'}
           @{Path='markdown/Dir';        ReferencePath='SubDirSingle.html';  ResultPath='TestDrive:/Subdir/SubdirSingle.html' ; Extensions = 'advanced'}
       ) `
       {
           param($Path,$ReferencePath,$ResultPath,$Extensions)

           $testPath = Join-Path $SCRIPT:testdata -ChildPath $Path
           $refPath  = Join-Path $SCRIPT:refdata  -ChildPath $ReferencePath

           Convert-MarkdownToHTML -Path $testPath -Template $SCRIPT:template -Destination 'TestDrive:/' -IncludeExtension $Extensions

           $refPath    | Should -Exist
           $ResultPath | Should -Exist

           $refFileContents = Get-Content -LiteralPath $refPath -Encoding UTF8 | Out-String
           Get-Content -LiteralPath $ResultPath -Encoding UTF8 | Out-String | Should -BeExactly $refFileContents
       }
}