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 - elltrans.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 1373 1479 92.8 % Date: 2026-02-23 02:23:56 Functions: 112 116 96.6 % Legend: Lines: hit not hit

Function Name	Hit count
ellwp	0
vecthetanullk	0
vecthetanullk_tau	0
zellrealneg	0
thetanull11	5
thetanullk	5
ser_E	6
ser_eta	6
ser_j2	6
weberf	11
weberf1	11
weberf2	11
elljacobi_pol	12
ser_j	12
zell_closest_0	12
check_unit_disc	16
ellQp_P2t_err	18
ser_addmulXn	18
sumdedekind	20
RgXn_eta	22
zellrealpos	24
thetanull	25
trueeta	25
apply_eta_correction	33
weber0	33
elljacobi_cx	34
ellwpseries	36
jell	36
ellQp_t2P	48
elljacobi	58
autojtauprime	60
doellR_eta	60
ellzeta_cx	60
theta11prime	60
eta	64
cxanalyze	66
elleta	72
equali01	80
ellR_eta	84
eta0	89
theta	111
ellQp_P2t	114
expIxy	126
thetaflag	131
ellzeta	138
ellwp0	156
get_r0	156
elleis_from_wp	198
cxredsl2	241
get_c4c6	252
cxredsl2_i	276
Ek_from_wp	336
gadd3	348
cxE4E6	366
isqreal	366
elleisnum0	384
thetanull_i	386
coeffEu	408
ellwpseries_aux	474
double_eta_quotient	1495
expIPiQ	1553
gmul4	1566
sqrt32	1591
ellwp_cx	1620
pointell	1620
ellwpnum_all	1638
gmul3	2134
E2_correction	2876
PiI2div_sqr	3428
elleisnum	3476
e12	3478
elleisnum_testk	3854
u_sumdedekind_coprime	4498
sumdedekind_coprime	4503
inteta	5432
eta_form	5980
form_to_quad	5980
to_form	5980
eta_reduced	6061
eta_correction	6071
real2nQ	6529
expIPifrac	12197
zellcx	24630
ellperiods	24648
zell_i	24654
zell	24774
clearimall	26430
ellsigma_cx	30958
ellsigma	31048
reduce_z	32662
pi23	32668
redmod2Z	32783
autojtau	33109
thetaall	33109
thetaprec	33175
PiI2div	33912
vecthetanullk_loop	34167
qq	34231
cxEk	34464
set_gamma	36402
ellomega_cx	36711
doellR_omega	44971
ellomega_agm	44971
elleta_W	55648
ispair	59364
get_periods	60816
compute_periods	60882
red_modSL2	60882
check_periods	60888
_period	61976
check_complex	65814
upper_to_cx	67424
ellR_omega	79542
clearim	105720
expIPiR	160038
expIPiC	278655

Generated by: LCOV version 1.16