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 30580-ef5a862e7f) Lines: 340 345 98.6 %
Date: 2025-12-19 09:23:05 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 560
surface_gcd_path 1072
common_nbr_verify 1200
descend_volcano 2875
common_nbr_corner 37709
common_nbr_pred 43023
common_nbr_pred_poly 44223
node_degree 86653
surface_gcd_cycle 97184
ascend_volcano 139700
nhbr_polynomial 152455
next_surface_nbr 159307
surface_parallel_path 206259
j_level_in_volcano 225601
random_distinct_neighbours_of 225923
surface_path 233876
pcp_get_L 239884
pcp_get_k 239884
pcp_get_o 239884
pcp_get_enum_cnt 239885
pcp_get_L0 239886
pcp_get_n 239886
enum_roots 239889
common_nbr 243950
extend_path 302060
is_j_exceptional 393062
get_nbrs 26430760
Flx_remove_root 35545831

Generated by: LCOV version 1.16