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 - polclass.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30347-cb65b7994e) Lines: 825 846 97.5 %
Date: 2025-06-27 09:22:08 Functions: 72 73 98.6 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Flv_powsum_pre 17216
adjust_orientation 6172
adjust_signs 11511
best_torsion_constraint 154521
check_modinv 2814
classgp_make_pcp 5218
classgp_pcp_check_generators 4657
distinct_inverses 987
evec_clear 5392
evec_compose 518
evec_copy 12583
evec_equal 231
evec_inverse 217
evec_inverse_o 707
evec_n_to_m 4636
evec_order 5872
evec_orders 4636
evec_reduce 21445
evec_ri 13257
evec_ri_mutate 5669
evec_to_index 10500
factor_uv 199645
famatsmall_divexact 2368
find_j_inv_with_given_trace 154706
find_jinv 154505
hasse_bounds 154644
hclassno_wrapper 204863
height_margin 5218
index_to_evec 1372
logfac 0
modinv_has_sign_ambiguity 5218
modinv_inverted_involution 2103
modinv_negated_involution 2103
modinv_units 3535
next_generator 5802
next_prime_evec 1225
norm_eqn_set 193864
oneroot_of_classpoly 155020
orient_pcp 280
oriented_n_action 6172
pcp_get_D 163799
pcp_get_D0 204863
pcp_get_L 9962
pcp_get_L0 9962
pcp_get_fau 5218
pcp_get_h 204863
pcp_get_inv 164027
pcp_get_k 11670
pcp_get_m 6725
pcp_get_n 6452
pcp_get_o 6452
pcp_get_orient_p 6725
pcp_get_orient_q 6725
pcp_get_orient_reps 6452
pcp_get_r 6452
pcp_get_u 153376
polclass 2177
polclass0 6688
polclass_psum 595
polclass_roots_modp 153300
polclass_small_disc 1470
polclass_worker 153405
primecmp 1358361
quadnegclassnou 5218
random_FleV 933004
select_classpoly_prime_pool 5218
select_classpoly_primes 5218
test_curve_order 185023
torsion_constraint 462218
upper_bound_on_classpoly_coeffs 5218
vecsmall_isin_skip 7633
verify_2path 672
verify_edge 3656

Generated by: LCOV version 1.16