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 - lfunutils.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30550-07450a7a86) Lines: 1645 1789 92.0 % Date: 2025-11-19 09:22:25 Functions: 167 177 94.4 % Legend: Lines: hit not hit

Function Name	Hit count
c4c6_ap	0
c4c6_testp	0
ellsympow_abelian_twist	0
ellsympow_goodred	0
ellsympow_isabelian2	0
ellsympow_isabelian3	0
ellsympow_rootno2	0
eulerf_conj	0
eulerf_genus2	0
safe_Z_pvalrem	0
ellsymsq_bad3	14
eulerf_div	14
eulerf_twist	14
poles_translate	14
lfunabelrel	21
lfunzetakinit_artin	21
vecchar_renormalize	21
ellsympow_deltam2	28
ellsympow_goodred2	28
ellsympow_inertia2	28
ellsymsq_bad2	28
eulerf_artin	28
eulerf_chigen	28
eulerf_ellsympow	28
pole_translate	28
ellsympow_rootno3	35
ellsymsq_badp	42
eulerf_abelrel	42
eulerf_chiZ	42
eulerf_mul	42
lfungenus2	42
lfunmfspec	42
lfunmfspec_i	42
etaselfdual	49
lfunetaquo	49
eulerf_bad	56
eulerf_shift	56
lfunconvolinv	56
lfundiv	56
lfundivpoles	56
lfunvgasub	56
lfunmul	63
elldiscfix	70
ellsympow_deltam3	70
ellsympow_goodred3	70
ellsympow_inertia3	70
eulerf_closure	70
lfunellmfpeters	70
lfunellmfpetersmintwist	70
lfunellsymsqmintwist	70
lfunsympow	70
mfpeters	70
eulerf_hgm	84
lfunconj	84
lfunconvol	84
lfunmul_k	84
lfunmulpoles	84
lfunqf	91
ellsympow_epsm	98
ellsympow_multred	98
ellsympow_nonabelian	98
RgV_Rg_translate	105
lfunshift	105
artin_charfromgens	119
vecan_conj	126
check_0	133
check_real	133
lfunparams	133
ellsympow_gamma	140
lfuncombdual	140
lfunellsympow	140
vecan_eta	147
closure2ldata	168
eulerf_zetak	168
vecan_abelrel	168
rtopoles	182
ellminimaldotwist	189
ellsympow_betam	196
etachar	203
lfunellnf	203
vecan_genus2	203
etacuspidal	231
etaquotype	259
simple_pole	273
galois_get_conj	280
orderpole	280
lfundualpoles	294
eta_product_ZXn	322
lfunproduct	329
lfunzetakinit_quotient	329
deg1ser_shallow	336
qfiseven	336
vecan_ellsympow	343
vecan_qf	399
vecan_mul	413
chigenkerfind	532
lfunabelianrelinit	532
vec_classes	532
veclfunchiinit	532
lfunabelrel_i	553
ginvvec	581
lfuncreate_tag	616
artin_ind	623
vecan_div	630
lfundual	644
linit_get_mat	658
lfuneuler	721
vecan_shift	756
lfunzetak	833
ldata_eulerf	910
dirgenus2_worker	924
lfunzetakinit	959
char_renormalize	1204
eta_ZXn	1222
lfunzetak_i	1260
lfunchiinit	1281
artin_badprimes	1379
artin_gamma	1379
char_is_real	1379
lfunchigen	1533
vecan_chigen	1554
handle_zeta	1596
idealfrobenius_hard	1596
lfunartin	1610
vecan_closure	1967
dirzetak	2107
dirzetak0	2107
Flx_difftable	2142
Flx_genus2trace_naive	2142
artin_ram	2282
dirgenus2	2317
gamma_imagchi	2394
char_dim	2821
char_expand	2856
vecan_twist	2884
cyclotos	2891
vecan_artin	2947
ellsympow_abelian	3129
artin_dim	3213
lfunmisc_to_ldata	3521
vecan_chiZ	3647
vecan_Kronecker	3668
lfunellQ	3857
lfuncreate	4039
lfunell	4060
lfunzeta	4102
vec01	4718
lfuntwist	5187
mkvchi	5201
direllsympow_worker	5655
cyclo_is_real	6496
lfunchiquad	6902
cyclotoi	7700
lfunchiZ	8442
dirartin_worker	15664
lfundatatype	17759
lfunmisc_to_ldata_shallow_i	21231
tag	26362
ldata_vecan	32669
ldata_newprec	33110
idealfrobenius_easy	52401
dirartin	53995
localfactor	58954
ellsympow_trace	86628
chigenevalvec	86730
ellsympow	89844
lfunmisc_to_ldata_shallow	99175
chigeneval_i	106127
checkldata	106616
is_tagged	106728
lfunmisc_to_ldata_i	123927
is_ldata	128267
_direuler_abelrel	687883
abelrel_factor	687925
abelrel_pfactor	990451
gaddmulvec	1809619
gaddmul	1911392

Generated by: LCOV version 1.16