Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - basemath - concat.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30848-b1463d63da) Lines: 339 377 89.9 %
Date: 2026-04-30 09:27:33 Functions: 16 17 94.1 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
RgM_flatten_RgC 322
RgM_flatten_RgV 0
_matsize 19388489
catmany 2277904
catmanyMAT 20797
catmanySTR 147
err_cat 49
gconcat 19436978
gconcat1 854
listconcat 21
matconcat 76580
matfill 17025364
shallowconcat 25859859
shallowconcat1 8262203
shallowmatconcat 3832903
strconcat 385
vconcat 20849767

Generated by: LCOV version 1.16