Class Overview
An enum to indicate the Platform where a test should run. In general, it
should be able to represent a large matrix such as: Browser * Os_combo *
{hosted, web} * {htmlUnit, actual_browser}.
For HtmlUnit, we distinguish among three categories of failures:
HtmlUnitBug: Gwt tests that are failing due to a bug in HtmlUnit.
Ideally, these must be accompanied by a bug report on the HtmlUnit issue
tracker.
HtmlUnitLayout: Gwt tests that test layout. HtmlUnit does not use
a layout engine, though some simple layout tests do pass with HtmlUnit.
HtmlUnitUnknown: Gwt tests whose failures have not been
investigated yet.