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 - ellisog.c (source / functions) Hit Total Coverage Test: PARI/GP v2.16.2 lcov report (development 29115-f22e516b23) Lines: 978 991 98.7 % Date: 2024-04-19 08:07:09 Functions: 85 85 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
contrib_full_tors	14
ellisotree	35
ellweilcurve	42
ellnf_prime_degree_hard	49
non_two_torsion_ordinate_char2	49
ellisogenyapply	70
get_isomat	77
derivhasse	98
ellnf_modpoly	105
ellnf_goodl_l	112
ellnf_isomat	112
ellnf_prime_degree	112
ellnf_prime_degree_easy	112
ellisograph_dummy	154
isomatdbl	154
mkisomatdbl	154
ellQ_goodl_l	182
isog_identity	252
invisogeny_a4a6	273
isogeny_a4a6	273
ellQ_goodl	308
corr	336
elkies98	336
isogeny_from_kernel_point	427
mkisomat	455
ellQ_exceptional_iso	462
ellQ_isomat	462
divy	476
update_isogeny_polys	532
isomat_perm	539
ellisograph_p	567
twistisogeny	567
ellnf_isocrv	644
list_to_crv	679
ellisomat	777
non_two_torsion_abscissa	812
ellisweierstrasspoint	903
get_polmodular	931
ellisogeny	1120
ellcompisog	1267
non_two_torsion_ordinate_char_not2	1267
isog_abscissa	1316
isog_ordinate	1316
ellisograph_a4a6	1449
ellisog_by_j	1526
ellisog_by_jt	1680
ellnfcompisog	1722
get_isog_vars	1764
QXQH_eval	1904
idealgen_minpoly	2226
stariter_hard	2226
stariter_easy	2240
contrib_weierstrass_pt	2611
ellisograph_r	2933
ellisograph_iso	3164
fill_LM	3276
nfispower_quo	3654
_degree	3780
distmat_pow	3843
etree_distmat	3843
etree_list	3843
isograph_p	3843
nfmkisomat	3843
ellisog_by_roots	4032
ellisog_by_Kohel	4200
isomat_find	4340
to_RgX	4760
RgH_eval	5040
isogeny_from_kernel_poly	5418
two_torsion_part	5418
first_three_power_sums	5425
make_velu_curve	5789
ellnf_charpoly	6188
ellisograph_Kohel_r	6237
a4a6_divpol	6426
ellisograph_Kohel_iso	6426
stariter	6468
RgXY_eval	7630
trivial_isogeny	7686
startor	8414
etree_distmatr	9170
etree_listr	9170
starlaw	18634
etree_nbnodes	19621
isomat_eq	22134

Generated by: LCOV version 1.14