The entry point for a new ndoc node

Fill docunits with new discovered unit of tests.

Property definitions

nitc $ NitUnitExecutor :: extract
	# The entry point for a new `ndoc` node
	# Fill `docunits` with new discovered unit of tests.
	fun extract(mdoc: MDoc, xml_classname, xml_name: String)
	do
		last_docunit = null
		self.xml_classname = xml_classname
		self.xml_name = xml_name

		self.mdoc = mdoc

		# Populate `blocks` from the markdown decorator
		var md_node = md_parser.parse(mdoc.content.join("\n"))
		md_visitor.enter_visit(md_node)
	end
src/testing/testing_doc.nit:65,2--78,4