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 30851-7844d7b3a5) Lines: 343 381 90.0 %
Date: 2026-05-03 09:26:29 Functions: 17 18 94.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
RgM_flatten_RgV 0
listconcat 21
err_cat 49
catmanySTR 147
RgM_flatten_RgC 322
RgMdim 322
strconcat 385
gconcat1 854
catmanyMAT 20818
matconcat 76580
catmany 2277895
shallowmatconcat 3833012
shallowconcat1 8262246
matfill 17026027
_matsize 19389151
gconcat 19436968
vconcat 20850558
shallowconcat 25862534

Generated by: LCOV version 1.16