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 - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.16.2 lcov report (development 29115-f22e516b23) Lines: 1480 1543 95.9 % Date: 2024-05-19 08:07:28 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	289033
RgX_gtofp_bit	6738024
RgX_normalize1	35234
X2XP1	1276912
ZX_Uspensky	182108
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	14443
ZX_graeffe	5306
ZX_realroots_irred	47414
ZX_rescale2prim	415684
ZX_sturm	1414
ZX_sturm_i	116087
ZX_sturm_irred	114673
ZX_sturmpart	3074
ZX_to_ZiX	16189700
ZiX_sqr	94672173
_gen_nored	11046327
_gen_one	14287240
_gen_zero	321005
_intervalcmp	0
_mp_add	24370171
_mp_cmul	34332478
_mp_mul	4316903
_mp_sqr	6228156
_mp_sub	0
_sqrtnr	22216
a_posteriori_errors	510653
abs_update	7726997
abs_update_r	736076
all_roots	509842
append_clone	1536774
bkeval_single_power	5166784
check_ab	53610
checkbound	105596
checkvalidpol	247845
clean_roots	509884
cleanroots	212968
cmp_complex_appr	2152120
conformal_basecase	1337320
conformal_mapping	445734
conformal_pol	1337439
dblexp	6260240
dbllog2	290601920
dft	478717
dual_modulus	965492
eval_rel_pol	12577941
fft	13732141
fft2	7462
findpower	39133570
fix_roots	510655
fix_roots1	375332
fujiwara_bound	1097582
fujiwara_bound_real	269189
graeffe	47326312
homothetie	1537585
homothetie2n	9526287
homothetie_gauss	34872980
ind_maxlog2	858622
initdft	949436
isexactpol	220853
isexactscalar	858319
isreal	916453
isvalidcoeff	1148238
logmax_modulus	4251564
logmin_modulus	1541533
logmodulus	581042
logpre_modulus	581045
logradius	470717
lower_bound	39132643
mydbllog2i	215836864
mydbllog2r	52749675
mydbllogr	9199148
mygprec	61051337
mygprec_absolute	4173795
mygprec_special	510658
mygprecrc	207550898
mygprecrc_special	2072237
myshiftic	130479291
myshiftrc	34082147
newton_polygon	5275120
optimize_split	470719
parameters	470720
pol_to_gaussint	16829636
polgraeffe	14
polmod_to_embed	84
polrootsbound	26985
polrootsbound_i	26978
polsolve	164780
quicktofp	4052194
realroots	50536
refine_F	478713
refine_H	2355220
root_error	1828546
roots	7913
roots_aux	220881
roots_com	220853
rootsdeg0	42
scalepol	4086464
scalepol2n	0
sol_ok	3399
solve_exact_pol	212597
split_0	471041
split_0_1	446055
split_0_2	446055
split_1	445736
split_2	470718
split_complete	1452737
split_fromU	470718
split_pols	164787
splitcauchy	164797
splitpoleval	5166643
tocomplex	1174101
update_radius	470716
usp	229453

Generated by: LCOV version 1.14