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 30550-07450a7a86) Lines: 340 345 98.6 %
Date: 2025-11-18 09:22:37 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 556
common_nbr_verify 1007
surface_gcd_path 1072
descend_volcano 2881
common_nbr_corner 37526
common_nbr_pred 43027
common_nbr_pred_poly 44033
node_degree 86210
surface_gcd_cycle 95857
ascend_volcano 138330
nhbr_polynomial 152157
next_surface_nbr 157980
surface_parallel_path 204230
j_level_in_volcano 223747
random_distinct_neighbours_of 224071
surface_path 228762
pcp_get_enum_cnt 235622
pcp_get_k 235622
pcp_get_o 235622
pcp_get_L 235623
pcp_get_n 235623
pcp_get_L0 235625
enum_roots 235627
common_nbr 241748
extend_path 300565
is_j_exceptional 390318
get_nbrs 25437215
Flx_remove_root 33941935

Generated by: LCOV version 1.16