test_CellSize.cpp File Reference

Keeps the per-cell memory footprint from creeping back up (GH #804). More...

#include <wx/app.h>
#include <wx/bitmap.h>
#include <wx/dcmemory.h>
#include <wx/log.h>
#include "Configuration.h"
#include "MathParser.h"
#include "cells/Cell.h"
#include "cells/TextCell.h"
#include <cstdio>
#include <catch2/catch.hpp>

Include dependency graph for test_CellSize.cpp:

Data Structures
class	TestApp

Functions
	SCENARIO ("Cells stay small (GH #804)")
	SCENARIO ("Ordinary maths cells allocate no side data")
	SCENARIO ("A UUID and unknown attributes survive parsing and ToXML()")
	SCENARIO ("Clearing the UUID of a cell that has none doesn't allocate")
	wxDECLARE_APP (TestApp)
int	main (int argc, char **argv)

Detailed Description

Keeps the per-cell memory footprint from creeping back up (GH #804).

A large result (a polynomial with a million terms) becomes several million cells, so every byte in Cell counts several megabytes. A cell's UUID and its unknown XML attributes used to be a wxString and a std::map in every cell (96 bytes on 64-bit Linux), although only GroupCells normally get a UUID; they now live in side data that is only allocated when used. This test checks both halves: that an ordinary maths cell allocates none of it, and that the data still survives the trip through MathParser and ToXML() for the cells that do carry it.