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 30861-40e9da58f9) Lines: 274 323 84.8 %
Date: 2026-05-04 09:27:01 Functions: 25 30 83.3 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by 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 571
E_4_torsion 1289
E_any_torsion 1496
E_3_torsion 2070
Fl_inv4 2070
E_5_torsion 2230
E_2_torsion 3138
Fl_inv3 5208
E_9_torsion 14558
E_7_torsion 14983
a1a3_to_a4a6 15069
E_8_torsion 36827
a2a4_to_a4a6 37244
E_10_torsion 70941
E_12_torsion 88180
E_11_torsion 115098
map_X1_points 565658
get_X1_info 565696
E_general_X1 565698
random_curves_with_m_torsion 914537
torsion_compatible_with_characteristic 914648
rs_to_a4a6_and_tors 2275399
bc_to_a4a6_and_tors 3196983
bc_to_a4a6 3197001
Fl_mul4 6638434

Generated by: LCOV version 1.16