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 - volcano.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30547-1b347192b6) Lines: 340 345 98.6 %
Date: 2025-11-12 09:22:59 Functions: 28 28 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Flm_Fl_polmodular_evalxy 556
common_nbr_verify 1008
surface_gcd_path 1072
descend_volcano 2875
common_nbr_corner 37546
common_nbr_pred 43026
common_nbr_pred_poly 44035
node_degree 86091
surface_gcd_cycle 95911
ascend_volcano 138352
nhbr_polynomial 152232
next_surface_nbr 157995
surface_parallel_path 204280
j_level_in_volcano 223779
random_distinct_neighbours_of 224101
surface_path 228787
pcp_get_L 235649
pcp_get_L0 235649
pcp_get_enum_cnt 235649
pcp_get_k 235649
pcp_get_n 235649
pcp_get_o 235649
enum_roots 235650
common_nbr 241812
extend_path 300539
is_j_exceptional 390123
get_nbrs 25443216
Flx_remove_root 33946389

Generated by: LCOV version 1.16