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 - crvwtors.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30670-52869c8c38) Lines: 274 323 84.8 %
Date: 2026-02-05 09:23:49 Functions: 25 30 83.3 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
E_10_torsion 71094
E_11_torsion 115457
E_12_torsion 86645
E_2_torsion 3123
E_3_torsion 2060
E_4_torsion 1248
E_5_torsion 2151
E_6_torsion 583
E_7_torsion 14992
E_8_torsion 36893
E_9_torsion 14599
E_any_torsion 1515
E_general_X1 566681
Fl_div4 0
Fl_div8 0
Fl_inv3 5183
Fl_inv4 2060
Fl_mul4 6641281
a1a3_to_a4a6 15003
a2a4_to_a4a6 36954
bc_to_a4a6 3199267
bc_to_a4a6_and_tors 3198888
get_X1_info 566689
map_X1_points 566631
qt_to_a4a6_and_tors 0
random_curves_with_m_torsion 914726
rs_to_a4a6_and_tors 2282130
t_to_a4a6_and_tors 0
torsion_compatible_with_characteristic 914788
tq_to_a4a6_and_tors 0

Generated by: LCOV version 1.16