Test that the event passed to a listener of webglcontextlost is a WebGLContextEvent.
PASS evt.toString() is '[object WebGLContextEvent]'
PASS evt.statusMessage is ''
PASS context.getError() is context.NO_ERROR
Test that the event passed to a listener of webglcontextrestored is a WebGLContextEvent.
PASS evt.toString() is '[object WebGLContextEvent]'
PASS evt.statusMessage is ''
PASS successfullyParsed is true

TEST COMPLETE