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 29877-9124a6ce27) Lines: 2281 2352 97.0 % Date: 2025-01-18 09:08:44 Functions: 142 142 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_addmul2	55888905
Fl_addmul3	9775819
Fl_addmul4	5018162
Fl_addmul5	24946754
Fl_mul4	1690987
Fl_mul5	92159
Fl_mul6	753419
Fl_mul7	92158
Fl_mul8	845553
Fle_quotient_from_kernel_generator	92163
Flm_Fl_phi2_evalx	26400704
Flm_Fl_phi3_evalx	3260625
Flm_Fl_phi5_evalx	5008568
Flm_Fl_polmodular_evalx	41809557
Flv_deriv_pre_inplace	2463
Flv_lastnonzero	350610
Flv_powu_inplace_pre	42147
Flx_double_eta_jpoly	29409
Flx_double_eta_xpoly	41314
FpV_deriv	56
Fp_modinv_to_j	1057
Fp_polmodular_evalx	126
_qsort_cmp	14537084
append_neighbours	572591
calc_primes_for_discriminants	3031
carray_reverse_inplace	18678
check_generators	770583
compute_L_isogenous_curve	83241
db_add_levels	45
disc_best_modinv	1907423
discriminant_with_classno_at_least	3029
double_eta_Fl	23506
double_eta_exponent	54039
double_eta_initial_js	5697
double_eta_power	29409
double_eta_raw	23940
double_eta_raw_to_Fl	29665
double_eta_raw_to_Fp	161
double_eta_root	24469
eighth_root	5094
enum_volcano_floor	38773
enum_volcano_surface	38772
eval_modpoly_modp	2673
find_L_tors_point	134265
find_noniso_L_isogenous_curve	83237
fourth_root	3964
get_Lsqr_cycle	38773
inflate_polys	10850
internal_db	24838
interpolate_coeffs	41296
make_pcp_floor	2901
make_pcp_surface	2901
mkqfis	135735
modfn_preimage	66149
modfn_root	194151
modfn_unambiguous_root	12299
modinv_degree	7243349
modinv_double_eta_from_2j	12112
modinv_double_eta_from_j	5696
modinv_double_eta_good_disc	5315161
modinv_f3_from_j	358
modinv_f_from_j	2968
modinv_good_disc	14843104
modinv_good_prime	10681154
modinv_height_factor	22759094
modinv_is_Weber	784
modinv_is_double_eta	235984
modinv_j_from_2double_eta	6159
modinv_j_from_f	1858
modinv_level	40383
modinv_max_internal_level	27846
modinv_odd_conductor	528581
modinv_parent	147
modinv_parent_power	147
modinv_pfilter	14763
modinv_ramified	504
modinv_sparse_factor	44675
modpoly_height_bound	3029
modpoly_pickD	3031
modpoly_pickD_primes	11732
normalise_coeffs	10850
oneroot_of_classpoly	38765
orientation_ambiguity	33902
phi2_ZV	20005
phi2_g2_ZV	119
phi2_w3w13_ZV	14
phi2_w3w3e2_ZV	21
phi2_w3w5_ZV	35
phi2_w5w7_ZV	56
phi3_ZV	1882
phi3_f3_ZV	21
phi3_w2w13_ZV	49
phi3_w2w7_ZV	182
phi5_ZV	1852
phi5_f_ZV	182
phi5_w2w3_ZV	56
phi5_w3w3_ZV	63
phi5_w3w7_ZV	42
phi7_w2w5_ZV	112
phi_w2w13_j	2937
phi_w2w3_j	1060
phi_w2w5_j	3242
phi_w2w7_j	6520
phi_w3w13_j	210
phi_w3w3_j	3535
phi_w3w5_j	1137
phi_w3w7_j	2412
phi_w5w7_j	2887
polmodular	630
polmodular0_ZM	27727
polmodular0_powerup_ZM	147
polmodular_ZM	19263
polmodular_ZXX	19179
polmodular_db_add_level	25103
polmodular_db_add_levels	4976
polmodular_db_for_inv	354703
polmodular_db_getp	516688
polmodular_db_init	21482
polmodular_small_ZM	24838
polmodular_split_p_Flm	38762
polmodular_worker	38769
prime_to_conductor	3257079
primeform_discrete_log	198166
primeform_exp_order	1064285
qfb_distinct_prods	232590
qfb_is_two_torsion	1688036
qfb_nform	135737
qform_primeform2	77734
red_primeform	3257079
root_matrix	38774
roots_to_coeffs	40944
safe_abs_sqrt	9868
scanD0	3031
select_L0	3029
select_curve_with_L_tors_point	83241
sixth_root	5493
sympol_to_ZM	24691
twelth_root	898
update_Lsqr_cycle	533806
vecsmall_pick	572588
verify_L_sylow_is_cyclic	47697
weber_exponent	49

Generated by: LCOV version 1.16