class Covered::Coverage

def fresh?
	if @source.modified_time.nil?
		# We don't know when the file was last modified, so we assume it is stale:
		return false
	end
	
	unless File.exist?(@source.path)
		# The file no longer exists, so we assume it is stale:
		return false
	end
	
	if @source.modified_time >= File.mtime(@source.path)
		# The file has not been modified since we last processed it, so we assume it is fresh:
		return true
	end
	
	return false
end