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 30616-7aa4fb0184) Lines: 274 323 84.8 %
Date: 2026-01-18 09:22:29 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 70827
E_11_torsion 115017
E_12_torsion 88000
E_2_torsion 3121
E_3_torsion 2059
E_4_torsion 1241
E_5_torsion 2218
E_6_torsion 595
E_7_torsion 14615
E_8_torsion 36713
E_9_torsion 14347
E_any_torsion 1513
E_general_X1 565308
Fl_div4 0
Fl_div8 0
Fl_inv3 5180
Fl_inv4 2059
Fl_mul4 6628660
a1a3_to_a4a6 15094
a2a4_to_a4a6 36939
bc_to_a4a6 3193266
bc_to_a4a6_and_tors 3193225
get_X1_info 565311
map_X1_points 565301
qt_to_a4a6_and_tors 0
random_curves_with_m_torsion 913036
rs_to_a4a6_and_tors 2276529
t_to_a4a6_and_tors 0
torsion_compatible_with_characteristic 913105
tq_to_a4a6_and_tors 0

Generated by: LCOV version 1.16