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 - polmodular.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30587-f85873d515) Lines: 2652 2817 94.1 % Date: 2025-12-28 09:21:53 Functions: 157 163 96.3 % Legend: Lines: hit not hit

Function Name	Hit count
phi2_atkin11_ZV	0
phi2_atkin13_ZV	0
phi2_atkin17_ZV	0
phi2_atkin19_ZV	0
phi_atkin11_j	0
phi_atkin19_j	0
phi2_atkin23_ZV	7
phi2_atkin3_ZV	7
phi2_atkin5_ZV	7
phi2_atkin29_ZV	14
phi2_atkin31_ZV	14
phi2_atkin7_ZV	14
phi2_w3w13_ZV	14
phi3_f3_ZV	14
phi2_w3w3e2_ZV	21
db_add_levels	24
phi2_w3w5_ZV	35
phi5_w3w7_ZV	42
phi3_w2w13_ZV	49
FpV_deriv	56
phi5_w2w3_ZV	56
phi5_w3w3_ZV	63
weber_exponent	63
phi2_w5w7_ZV	70
phi7_w2w5_ZV	91
phi2_g2_ZV	98
Fp_polmodular_evalx	126
modinv_parent	140
modinv_parent_power	140
polmodular0_powerup_ZM	140
modinv_f3_from_j	168
phi5_f_ZV	175
phi3_w2w7_ZV	182
phi_w3w13_j	210
phi_atkin13_j	224
phi_atkin7_j	273
phi_atkin5_j	287
double_eta_raw_to_Fp	357
phi_atkin23_j	504
polmodular	651
phi_atkin17_j	672
modinv_ramified	700
twelth_root	893
phi_atkin3_j	931
modinv_is_Weber	1029
Fp_modinv_to_j	1043
phi_w2w3_j	1060
phi_w3w5_j	1157
modinv_j_from_f	1830
phi5_ZV	1887
phi3_ZV	1917
phi_atkin29_j	2039
phi_atkin31_j	2222
phi_w3w7_j	2412
Flv_deriv_pre_inplace	2464
phi_w2w5_j	2500
eval_modpoly_modp	2674
phi_w2w13_j	2755
make_pcp_floor	2992
make_pcp_surface	2992
discriminant_with_classno_at_least	3114
modpoly_height_bound	3114
select_L0	3114
calc_primes_for_discriminants	3116
modpoly_pickD	3116
scanD0	3116
modinv_f_from_j	3147
phi_w5w7_j	3339
phi_w3w3_j	3883
fourth_root	3926
eighth_root	4720
polmodular_db_add_levels	5025
sixth_root	5340
double_eta_initial_js	6102
modinv_double_eta_from_j	6102
phi_w2w7_j	6163
modinv_j_from_2double_eta	6398
inflate_polys	9646
normalise_coeffs	9646
safe_abs_sqrt	9840
modpoly_pickD_primes	12575
modinv_pfilter	15691
modinv_double_eta_from_2j	17790
modfn_unambiguous_root	17869
polmodular_ZXX	19210
polmodular_ZM	19294
phi2_ZV	20050
carray_reverse_inplace	20064
polmodular_db_init	21527
sympol_to_ZM	24827
internal_db	24967
polmodular_small_ZM	24967
polmodular_db_add_level	26100
polmodular0_ZM	27948
modinv_max_internal_level	28067
double_eta_Fl	29994
double_eta_raw	30631
double_eta_root	30856
Flx_double_eta_jpoly	31102
double_eta_power	31102
double_eta_raw_to_Fl	36393
Flv_powu_inplace_pre	38569
modinv_level	40815
polmodular_split_p_Flm	41617
oneroot_of_classpoly	41619
polmodular_worker	41623
enum_volcano_floor	41629
enum_volcano_surface	41630
get_Lsqr_cycle	41630
root_matrix	41630
roots_to_coeffs	43865
orientation_ambiguity	43897
interpolate_coeffs	44193
modinv_sparse_factor	47712
verify_L_sylow_is_cyclic	50313
Flx_double_eta_xpoly	53888
double_eta_exponent	62314
modfn_preimage	71055
qform_primeform2	84555
find_noniso_L_isogenous_curve	89355
compute_L_isogenous_curve	89356
select_curve_with_L_tors_point	89356
Fl_mul5	98043
Fl_mul7	98043
Fle_quotient_from_kernel_generator	98046
find_L_tors_point	143345
qfb_nform	144557
mkqfis	148849
modfn_root	201941
primeform_discrete_log	209134
qfb_distinct_prods	231183
modinv_is_double_eta	251075
Flv_lastnonzero	330552
polmodular_db_for_inv	377562
polmodular_db_getp	548073
modinv_odd_conductor	548100
update_Lsqr_cycle	626046
modinv_good_atkin	633269
vecsmall_pick	667674
append_neighbours	667687
check_generators	802637
Fl_mul6	829380
Fl_mul8	927377
primeform_exp_order	1101615
qfb_is_two_torsion	1697990
Fl_mul4	1854603
disc_best_modinv	1907423
prime_to_conductor	3464791
red_primeform	3464791
Flm_Fl_phi3_evalx	4417999
Flm_Fl_phi5_evalx	5163247
Fl_addmul4	5171565
modinv_double_eta_good_disc	5468111
modinv_degree	7402220
modinv_good_prime	11096729
Fl_addmul3	13220089
_qsort_cmp	14914912
modinv_good_disc	15109326
modinv_height_factor	22899725
Fl_addmul5	25714805
Flm_Fl_phi2_evalx	30223325
Flm_Fl_polmodular_evalx	46777587
Fl_addmul2	64583534

Generated by: LCOV version 1.16