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 30482-15ec328664) Lines: 340 345 98.6 %
Date: 2025-09-06 09:24:15 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 559
common_nbr_verify 1011
surface_gcd_path 1072
descend_volcano 2880
common_nbr_corner 37506
common_nbr_pred 43020
common_nbr_pred_poly 44031
node_degree 86070
surface_gcd_cycle 95808
ascend_volcano 138296
nhbr_polynomial 152220
next_surface_nbr 157958
surface_parallel_path 204181
j_level_in_volcano 223770
random_distinct_neighbours_of 224090
surface_path 228781
enum_roots 235642
pcp_get_L 235642
pcp_get_L0 235642
pcp_get_n 235642
pcp_get_o 235642
pcp_get_enum_cnt 235643
pcp_get_k 235643
common_nbr 241678
extend_path 300491
is_j_exceptional 390062
get_nbrs 25433785
Flx_remove_root 33969758

Generated by: LCOV version 1.16