task Test -depends Compile {
  $origin_directory = pwd
  cd $build_directory
  $test_assemblies = dir $build_directory -filter *test*.dll | foreach {$_.FullName }
  $gsnap = Get-PSSnapin -name Gallio
  if($gsnap -eq $null){
    Add-PSSnapIn Gallio
  }
  Run-Gallio $test_assemblies -verbose -ReportTypes Html-Condensed -ReportDirectory $test_report_directory
  cd $origin_directory