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 - ellsea.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30074-db9b3c0519) Lines: 1207 1260 95.8 % Date: 2025-03-13 08:38:27 Functions: 93 97 95.9 % Legend: Lines: hit not hit

Function Name	Hit count
FpXQ_elldivpol	0
Fp_elldivpol	0
Zq_sqrt	0
pari_get_seadata	0
Fq_ellcard_CM	12
Zq_divexact	12
Zq_pval	12
find_CM	12
list_singular_discs	12
vecpoints_to_vecx	12
ellmodulareqn	30
a4a6t_from_J	42
find_isogenous_from_J	42
Fq_polmodular_eval	60
find_trace_lp1_roots	60
get_seadata	78
seadata_filename	78
corr	84
Fq_to_Flx	104
RgXY_deflatex	144
Flxq_find_eigen_Frobenius	316
Flxq_find_eigen_value_power	316
Flxq_elldivpolmod	332
find_eigen_value_oneroot	432
find_trace_one_root	462
Flxq_study_eqn	578
Flxq_elldivpolmod_init	648
separation	780
match_and_sort	828
Fp_ellcard_SEA	834
get_FqE_group	840
champion	870
get_bound_bsgs	870
Zq_inv	888
Fq_ellcard_SEA	912
Flxq_rhs	964
FqX_homogenous_div	1110
Flxq_elldivpol34	1296
FqX_numer_isog_abscissa	1320
Fq_elldivpol2	1320
Fq_elldivpol2d	1320
find_kernel_power	1320
BSGS_pre	1560
compute_diff	1560
multiple_crt	1560
possible_traces	1560
pari_set_seadata	1628
get_lgatkin	1650
find_isogenous_from_Atkin	2208
Fq_ellj	2232
Zq_ellj	2304
add_atkin	3522
find_trace_Atkin	4038
Fq_elldivpolmod	4158
find_isogenous_from_canonical	4182
find_trace_Elkies_power	4464
Fq_find_eigen_value_power	4790
find_eigen_value_power	5106
Fq_find_eigen_Frobenius	5222
FqX_homogenous_eval	5298
Fq_elldivpolmod_close	5538
compute_u	5634
ZqXn_WNewton	6108
Zq_Weierstrass	6108
find_isogenous	6438
a4a6t	7620
find_kernel	7662
Fp_study_eqn	7704
list_to_pol	8544
seadata_parse	8544
Fq_study_eqn	8562
find_trace	8574
get_modular_eqn	8574
study_modular_eqn	8574
seadata_cache	8592
Fq_elldivpolmod_init	9048
divpol_free	9696
divpolmod_init	9696
meqn_j	9948
cmp_atkin	14808
rhs	15152
FqX_invlift1	16638
FqX_invsqrtlift1	16638
Fq_elldivpol34	18096
Fq_ellyn	20958
ZqX_integ2Xn	22746
FqX_mulhigh	33276
FqX_mulhigh_i	33276
divpol_ff	75612
Zq_div	84378
Zq_divu_safe	103032
divpol_f2	124464
FqX_shift	140898
set_cost	156528
divpol	161184
value	317052
cost	393750

Generated by: LCOV version 1.16