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 30548-ec77dc363d) Lines: 340 345 98.6 %
Date: 2025-11-14 09:22:38 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 566
common_nbr_verify 1007
surface_gcd_path 1072
descend_volcano 2873
common_nbr_corner 37629
common_nbr_pred 43028
common_nbr_pred_poly 44035
node_degree 86100
surface_gcd_cycle 96071
ascend_volcano 138342
nhbr_polynomial 152322
next_surface_nbr 158112
surface_parallel_path 204463
j_level_in_volcano 223808
random_distinct_neighbours_of 224127
surface_path 228807
pcp_get_L 235667
pcp_get_o 235667
pcp_get_enum_cnt 235668
pcp_get_k 235668
pcp_get_n 235668
pcp_get_L0 235669
enum_roots 235671
common_nbr 242078
extend_path 300545
is_j_exceptional 390178
get_nbrs 25450709
Flx_remove_root 33972569

Generated by: LCOV version 1.16