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 30387-12623f1693) Lines: 340 345 98.6 %
Date: 2025-07-11 09:22:46 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 535
common_nbr_verify 1030
surface_gcd_path 1072
descend_volcano 2970
common_nbr_corner 37501
common_nbr_pred 43027
common_nbr_pred_poly 44058
node_degree 85976
surface_gcd_cycle 95445
ascend_volcano 138263
nhbr_polynomial 151766
next_surface_nbr 157496
surface_parallel_path 203762
j_level_in_volcano 222645
random_distinct_neighbours_of 222953
surface_path 229000
pcp_get_enum_cnt 235866
pcp_get_k 235866
pcp_get_o 235866
pcp_get_L 235867
pcp_get_L0 235867
pcp_get_n 235867
enum_roots 235868
common_nbr 241246
extend_path 298129
is_j_exceptional 388551
get_nbrs 25574432
Flx_remove_root 33890375

Generated by: LCOV version 1.16