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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 90.2 % 387 349
Test Date: 2026-08-09 17:02:52 Functions: 94.4 % 18 17
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
RgM_flatten_RgV 0
listconcat 21
err_cat 49
catmanySTR 154
RgM_flatten_RgC 322
RgMdim 322
strconcat 385
gconcat1 854
catmanyMAT 20902
matconcat 76580
catmany 2280214
shallowmatconcat 3834943
shallowconcat1 8287546
matfill 17037320
_matsize 19401068
gconcat 19438760
vconcat 21021367
shallowconcat 26058550

Generated by: LCOV version 2.0-1