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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - polclass.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30107-5d3c5ac62a) Lines: 825 846 97.5 % Date: 2025-04-01 09:20:36 Functions: 72 73 98.6 % Legend: Lines: hit not hit

Function Name	Hit count
Flv_powsum_pre	16000
adjust_orientation	6511
adjust_signs	11193
best_torsion_constraint	140995
check_modinv	2800
classgp_make_pcp	4868
classgp_pcp_check_generators	4335
distinct_inverses	987
evec_clear	4944
evec_compose	518
evec_copy	12467
evec_equal	231
evec_inverse	175
evec_inverse_o	707
evec_n_to_m	4314
evec_order	5501
evec_orders	4314
evec_reduce	21280
evec_ri	13158
evec_ri_mutate	5620
evec_to_index	10839
factor_uv	188987
famatsmall_divexact	2002
find_j_inv_with_given_trace	141154
find_jinv	140994
hasse_bounds	141056
hclassno_wrapper	193855
height_margin	4868
index_to_evec	1386
logfac	0
modinv_has_sign_ambiguity	4868
modinv_inverted_involution	2174
modinv_negated_involution	2174
modinv_units	3832
next_generator	5536
next_prime_evec	1225
norm_eqn_set	178475
oneroot_of_classpoly	141419
orient_pcp	294
oriented_n_action	6511
pcp_get_D	149516
pcp_get_D0	193855
pcp_get_L	9326
pcp_get_L0	9326
pcp_get_fau	4868
pcp_get_h	193855
pcp_get_inv	149769
pcp_get_k	11673
pcp_get_m	7092
pcp_get_n	6805
pcp_get_o	6805
pcp_get_orient_p	7092
pcp_get_orient_q	7092
pcp_get_orient_reps	6805
pcp_get_r	6805
pcp_get_u	139787
polclass	2177
polclass0	6373
polclass_psum	574
polclass_roots_modp	139724
polclass_small_disc	1505
polclass_worker	139814
primecmp	1241071
quadnegclassnou	4868
random_FleV	867824
select_classpoly_prime_pool	4868
select_classpoly_primes	4868
test_curve_order	168220
torsion_constraint	421418
upper_bound_on_classpoly_coeffs	4868
vecsmall_isin_skip	7634
verify_2path	672
verify_edge	3656

Generated by: LCOV version 1.16