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 30672-116f3d5b0e) Lines: 274 323 84.8 %
Date: 2026-02-07 09:23:42 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 71139
E_11_torsion 115085
E_12_torsion 86424
E_2_torsion 3124
E_3_torsion 2070
E_4_torsion 1238
E_5_torsion 2169
E_6_torsion 596
E_7_torsion 14514
E_8_torsion 36862
E_9_torsion 14523
E_any_torsion 1504
E_general_X1 566799
Fl_div4 0
Fl_div8 0
Fl_inv3 5194
Fl_inv4 2070
Fl_mul4 6632932
a1a3_to_a4a6 15338
a2a4_to_a4a6 37137
bc_to_a4a6 3194910
bc_to_a4a6_and_tors 3194911
get_X1_info 566853
map_X1_points 566826
qt_to_a4a6_and_tors 0
random_curves_with_m_torsion 913729
rs_to_a4a6_and_tors 2278346
t_to_a4a6_and_tors 0
torsion_compatible_with_characteristic 913780
tq_to_a4a6_and_tors 0

Generated by: LCOV version 1.16