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 v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 84.8 % 323 274
Test Date: 2026-07-23 17:04:59 Functions: 83.3 % 30 25
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
E_10_torsion 70937
E_11_torsion 116634
E_12_torsion 89455
E_2_torsion 3025
E_3_torsion 2062
E_4_torsion 1229
E_5_torsion 2182
E_6_torsion 593
E_7_torsion 14735
E_8_torsion 37897
E_9_torsion 14397
E_any_torsion 1502
E_general_X1 572967
Fl_div4 0
Fl_div8 0
Fl_inv3 5087
Fl_inv4 2062
Fl_mul4 6876064
a1a3_to_a4a6 14916
a2a4_to_a4a6 36806
bc_to_a4a6 3306120
bc_to_a4a6_and_tors 3306120
get_X1_info 572967
map_X1_points 572967
qt_to_a4a6_and_tors 0
random_curves_with_m_torsion 925834
rs_to_a4a6_and_tors 2347856
t_to_a4a6_and_tors 0
torsion_compatible_with_characteristic 925834
tq_to_a4a6_and_tors 0

Generated by: LCOV version 2.0-1