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 30658-0716cf3506) Lines: 274 323 84.8 %
Date: 2026-01-31 09:22:40 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 70695
E_11_torsion 115135
E_12_torsion 87451
E_2_torsion 3049
E_3_torsion 2071
E_4_torsion 1209
E_5_torsion 2179
E_6_torsion 586
E_7_torsion 14844
E_8_torsion 36939
E_9_torsion 14466
E_any_torsion 1510
E_general_X1 566484
Fl_div4 0
Fl_div8 0
Fl_inv3 5120
Fl_inv4 2071
Fl_mul4 6635282
a1a3_to_a4a6 15228
a2a4_to_a4a6 37074
bc_to_a4a6 3196535
bc_to_a4a6_and_tors 3196656
get_X1_info 566493
map_X1_points 566426
qt_to_a4a6_and_tors 0
random_curves_with_m_torsion 914104
rs_to_a4a6_and_tors 2280830
t_to_a4a6_and_tors 0
torsion_compatible_with_characteristic 914154
tq_to_a4a6_and_tors 0

Generated by: LCOV version 1.16