function Test-Should {
    <#
    .SYNOPSIS
    Function that calls validation functions and collects the output for full review.

    .DESCRIPTION
    Used in conjunction with other Test-* functions in this module.

    .PARAMETER result
    Result of Invoke-WebRequest containing Html to test against.

    .PARAMETER predicate
    Script block to execute. Usually a single function in the format of ${function:Test-HaveStatusCode}

    .PARAMETER Widget
    The widget under test, for better detail logging

    .PARAMETER Route
    The route under test, for better detail logging

    .PARAMETER Login
    The Login object used to represent the user under test, for better detail logging

    .PARAMETER _args
    Remaining arguments that the $predicate function needs.

    .EXAMPLE
    $passedTest = (Test-Should -Result $webRequest -Predicate ${function:Test-HaveStatusCode} 200)
    $passedTest = (Test-Should -Result $webRequest -Predicate ${function:Test-HaveResponseHeader} 'Content-Type' 'text/html;')

    .NOTES
    Writes out the result of the $predicate test function in Format-Table in Verbose mode and returns the status of the function test.
    #>
    [cmdletbinding()]
    param(
        [Parameter(Mandatory)]
        $result,
        [Parameter(Mandatory)]
        [scriptblock]$predicate,
        [Parameter(Mandatory)]
        [string]$Widget,
        [Parameter(Mandatory)]
        [string]$Route,
        [Parameter(Mandatory)]
        $Login,
        [Parameter(Mandatory, ValueFromRemainingArguments)]
        $_args
    )

    process {
        $StopWatch = [System.Diagnostics.StopWatch]::StartNew()
        $isOk, $err = & $predicate $result @_args
        $StopWatch.Stop()

        $resultObj = New-Object PSObject -Property $([ordered]@{
            FunctionName = $predicate.Ast.Name
            ReturnValue = $isOk
            ReturnMessage = $err
            Username = $login.Username
            Url = $login.UrlSignature
            Route = $Route.TrimStart('/')
            Widget = $widget
            Parameters = (@($_args) -Join ',')
            Runtime = $StopWatch.Elapsed.ToString("ss\.fffffff")
            MachineName = (Get-FullyQualifiedServerName)
        })

        return $resultObj
    }
}