function Format-FileLinterReport {
    <#
    .SYNOPSIS
        Private helper function used by Write-ResultFile.
    #>

    [CmdletBinding()]
    [OutputType([string])]

    param (
        [Parameter(Mandatory = $true)]
        [ValidateNotNullOrEmpty()]
        [PSTypeName('DroneHelper.FileLinter.Report')]$InputObject
    )

    begin {
    }

    process {
        $Output = @()
        if ($InputObject.Success) {
            $Output += ':heavy_check_mark: No FileLinter violations in {0} files found.' -f $InputObject.FilesCount
        }
        else {
            $Output += "| Result | File | Failed |"
            $Output += "| :----: | :--- | -----: |"
            foreach ($file in $InputObject.Files) {
                if ($file.FailedCount -gt 0) {
                    $failedTestNames = (
                        $file.Tests.GetEnumerator() | Where-Object {
                            $_.Value -eq $false
                        } | Select-Object -ExpandProperty 'Name'
                    ) -join ', '
                    $Output += "| :heavy_exclamation_mark: | ``{0}`` | ``{1}`` |" -f $file.Name, $failedTestNames
                }
            }
        }
        Write-Output $Output
    }

    end {
    }
}