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 30145-32f0acf4da) Lines: 340 345 98.6 %
Date: 2025-04-18 09:18:41 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 538
common_nbr_verify 934
surface_gcd_path 1072
descend_volcano 2981
common_nbr_corner 37294
common_nbr_pred 43024
common_nbr_pred_poly 43959
node_degree 81268
surface_gcd_cycle 94049
ascend_volcano 127269
nhbr_polynomial 142861
next_surface_nbr 149870
surface_parallel_path 202334
j_level_in_volcano 206348
random_distinct_neighbours_of 206657
surface_path 214689
pcp_get_enum_cnt 218618
pcp_get_k 218618
enum_roots 218619
pcp_get_L 218619
pcp_get_L0 218619
pcp_get_n 218619
pcp_get_o 218619
common_nbr 239616
extend_path 279305
is_j_exceptional 362833
get_nbrs 24253178
Flx_remove_root 32227069

Generated by: LCOV version 1.16