. $PSScriptRoot\..\..\Load-PesterModules.ps1
$here = Split-Path -Parent $MyInvocation.MyCommand.Path
$sut = (Split-Path -Leaf $MyInvocation.MyCommand.Path) -replace '\.tests\.', '.'
$functionPath = Join-Path -Path $here -ChildPath $sut
Write-Host "Overriding SUT: $functionPath"
Import-Module $functionPath -Force
$moduleForMock = ""


#region Read-XMLFile

Describe "Read-XMLFile" {

    $tempPath = [System.IO.Path]::GetTempFileName()

    Context "When The File Does Not Exist" {

        if (Test-Path $tempPath) {
            Remove-Item $tempPath -Force
        }

        It "Returns Null" {

            Read-XMLFile $tempPath | Should Be $null
        }

        It "Writes a Warning" {

            {
                ((Read-XMLFile $tempPath) 3>&1) -match "File could not be found"
            } | Should Be $true
        }
    }

    Context "When the File is Empty" {

        "" | Out-File $tempPath -Force -NoNewline

        It "Returns Null" {

            Read-XMLFile $tempPath | Should Be $null
        }

        It "Writes a Warning" {

            {
                ((Read-XMLFile $tempPath) 3>&1) -match "The Content of the Specified File is Null"
            } | Should Be $true
        }
    }

    Context "When the File is Invalid XML" {

        "Hello World" | Out-File $tempPath -Force -NoNewline

        It "Returns Null" {

            Read-XMLFile $tempPath | Should Be $null
        }

        It "Writes a Warning" {

            {
                ((Read-XMLFile $tempPath) 3>&1) -match "Could Not be Cast to XML"
            } | Should Be $true
        }
    }
}

#endregion Read-XMLFile