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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 84.8 % 323 274
Test Date: 2026-08-12 17:02:34 Functions: 83.3 % 30 25
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
Fl_div4 0
Fl_div8 0
qt_to_a4a6_and_tors 0
t_to_a4a6_and_tors 0
tq_to_a4a6_and_tors 0
E_6_torsion 594
E_4_torsion 1232
E_any_torsion 1506
E_3_torsion 2053
Fl_inv4 2053
E_5_torsion 2199
E_2_torsion 3129
Fl_inv3 5182
E_9_torsion 14371
E_7_torsion 14777
a1a3_to_a4a6 14906
a2a4_to_a4a6 37370
E_8_torsion 38344
E_10_torsion 71121
E_12_torsion 89851
E_11_torsion 116281
E_general_X1 574151
get_X1_info 574151
map_X1_points 574151
random_curves_with_m_torsion 927819
torsion_compatible_with_characteristic 927819
rs_to_a4a6_and_tors 2345641
bc_to_a4a6 3306066
bc_to_a4a6_and_tors 3306066
Fl_mul4 6878916

Generated by: LCOV version 2.0-1