create
  abstract fun createTestEventReporter(rootName: String, binaryResultsDirectory: Directory, htmlReportDirectory: Directory): GroupTestEventReporter
Returns an object that can be used to report test events.
When closed, it will throw if the root node has been failed.
Return
the test event reporter
Since
8.13
Parameters
root
the name for the root node of the test tree
binary
the directory to write binary test results to
html
the directory to write HTML test reports to