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 30674-be81ecfdd4) Lines: 274 323 84.8 %
Date: 2026-02-11 09:23:10 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 70974
E_11_torsion 114883
E_12_torsion 86806
E_2_torsion 3125
E_3_torsion 2058
E_4_torsion 1264
E_5_torsion 2119
E_6_torsion 628
E_7_torsion 14735
E_8_torsion 37105
E_9_torsion 14578
E_any_torsion 1508
E_general_X1 567676
Fl_div4 0
Fl_div8 0
Fl_inv3 5183
Fl_inv4 2058
Fl_mul4 6647129
a1a3_to_a4a6 15347
a2a4_to_a4a6 37197
bc_to_a4a6 3201127
bc_to_a4a6_and_tors 3201111
get_X1_info 567760
map_X1_points 567735
qt_to_a4a6_and_tors 0
random_curves_with_m_torsion 915140
rs_to_a4a6_and_tors 2280457
t_to_a4a6_and_tors 0
torsion_compatible_with_characteristic 915217
tq_to_a4a6_and_tors 0

Generated by: LCOV version 1.16