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 30365-beea1ff998) Lines: 340 345 98.6 %
Date: 2025-07-01 09:21:48 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 526
Flx_remove_root 33929232
ascend_volcano 138239
common_nbr 241237
common_nbr_corner 37492
common_nbr_pred 43027
common_nbr_pred_poly 44063
common_nbr_verify 1036
descend_volcano 2972
enum_roots 235860
extend_path 298149
get_nbrs 25580961
is_j_exceptional 388555
j_level_in_volcano 222624
next_surface_nbr 157473
nhbr_polynomial 151811
node_degree 85989
pcp_get_L 235855
pcp_get_L0 235859
pcp_get_enum_cnt 235856
pcp_get_k 235855
pcp_get_n 235855
pcp_get_o 235855
random_distinct_neighbours_of 222932
surface_gcd_cycle 95439
surface_gcd_path 1072
surface_parallel_path 203756
surface_path 228997

Generated by: LCOV version 1.16