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 30651-3e52073f6d) Lines: 274 323 84.8 %
Date: 2026-01-28 09:23:10 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 70904
E_11_torsion 114240
E_12_torsion 87294
E_2_torsion 3136
E_3_torsion 2038
E_4_torsion 1242
E_5_torsion 2162
E_6_torsion 595
E_7_torsion 14662
E_8_torsion 36612
E_9_torsion 14392
E_any_torsion 1505
E_general_X1 567139
Fl_div4 0
Fl_div8 0
Fl_inv3 5174
Fl_inv4 2038
Fl_mul4 6628564
a1a3_to_a4a6 14704
a2a4_to_a4a6 37413
bc_to_a4a6 3193197
bc_to_a4a6_and_tors 3193179
get_X1_info 567154
map_X1_points 567121
qt_to_a4a6_and_tors 0
random_curves_with_m_torsion 913410
rs_to_a4a6_and_tors 2278818
t_to_a4a6_and_tors 0
torsion_compatible_with_characteristic 913472
tq_to_a4a6_and_tors 0

Generated by: LCOV version 1.16