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 30482-15ec328664) Lines: 274 323 84.8 %
Date: 2025-09-03 09:23:58 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 76209
E_11_torsion 118194
E_12_torsion 86339
E_2_torsion 2877
E_3_torsion 2378
E_4_torsion 3141
E_5_torsion 2613
E_6_torsion 752
E_7_torsion 14855
E_8_torsion 34107
E_9_torsion 15134
E_any_torsion 2050
E_general_X1 578904
Fl_div4 0
Fl_div8 0
Fl_inv3 5255
Fl_inv4 2378
Fl_mul4 6807329
a1a3_to_a4a6 24896
a2a4_to_a4a6 40707
bc_to_a4a6 3255657
bc_to_a4a6_and_tors 3255603
get_X1_info 578901
map_X1_points 578855
qt_to_a4a6_and_tors 0
random_curves_with_m_torsion 934745
rs_to_a4a6_and_tors 2289527
t_to_a4a6_and_tors 0
torsion_compatible_with_characteristic 934821
tq_to_a4a6_and_tors 0

Generated by: LCOV version 1.16