function Test-IsPackageReliableService {
<#
.SYNOPSIS
    Returns true if the given package is a Service Fabric Reliable Service.
    A Reliable Service is a class library that implements Service Fabric's reliable service pattern, as opposed to a topshelf application.
    If a package ships with Service Fabric Application/Service manifests it is assumed to be a reliable service.
#>
    [CmdletBinding(DefaultParameterSetName = 'FeedQuery')]
    [OutputType([System.Boolean])]
    Param(
        [Parameter(Mandatory=$true, ParameterSetName='FeedQuery')]
        [string]$FeedSource,
        [Parameter(Mandatory=$true, ParameterSetName='FeedQuery')]
        [string]$Name,
        [Parameter(Mandatory=$true, ParameterSetName='FeedQuery')]
        [string]$Version,
        [Parameter(Mandatory=$false, ParameterSetName='FeedQuery')]
        [PSCredential]$Credential = $null,
        [Parameter(Mandatory=$true, ParameterSetName='ProvidedPackageFiles')]
        [object]$PackageFiles
    )

    $loglead = (Get-LogLeadName);

    if($PSCmdlet.ParameterSetName -eq "FeedQuery") {
        $PackageFiles = Get-PackageFileList -FeedSource $FeedSource -Name $Name -Version $Version -Credential $Credential;
    }

    # Consider the package a reliable service if it contains both an application and a service manifest.
    # Search for these two files in known locations.

    # Search for the application manifest.
    $hasApplicationManifest = $false;
    foreach ($file in $PackageFiles) {
        if ($file.fullPath -eq "ApplicationManifest.xml") {
            $hasApplicationManifest = $true;
            break;
        }
    }

    # Search for the service manifest.
    $hasServiceManifest = $false;
    foreach ($file in $PackageFiles) {
        if ($file.fullPath -eq "svc/ServiceManifest.xml") {
            $hasServiceManifest = $true;
            break;
        }
    }

    # Consider the package a reliable service if it contains the application/service manifests.
    $isReliableService = $hasApplicationManifest -and $hasServiceManifest;

    $microText = if($isReliableService) { "is" } else { "is not" };
    Write-Verbose "$loglead : Determined that package $Name|$Version $microText a reliable service";

    return $isReliableService;
}