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:

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 v2.18.1 lcov report (development 30401-87099e65a6) Lines: 1467 1530 95.9 %
Date: 2025-07-18 09:23:12 Functions: 116 119 97.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
_intervalcmp 0
_mp_sub 0
scalepol2n 0
ZX_Uspensky_equal_yes 14
polgraeffe 14
ZX_Uspensky_no 21
ZX_Uspensky_equal 28
rootsdeg0 42
FFT 56
FFTinv 56
polmod_to_embed 84
FFT_i 98
sol_ok 3378
ZX_graeffe 5383
ZX_sturm 6395
fft2 7462
roots 8018
ZX_deg1root 15275
_sqrtnr 22710
polrootsbound_i 27293
polrootsbound 27300
RgX_normalize1 35887
ZX_realroots_irred 48622
realroots 50627
ZX_sturm_irred 116760
ZX_sturm_i 123155
split_pols 166628
polsolve 166632
splitcauchy 166640
solve_exact_pol 231040
cleanroots 231644
isexactpol 239634
roots_com 239634
roots_aux 239662
checkvalidpol 266941
QX_complex_roots 290021
_gen_zero 325990
fix_roots1 394075
conformal_mapping 467780
split_1 467783
split_0_1 468104
split_0_2 468104
logradius 493819
optimize_split 493825
split_fromU 493825
parameters 493826
split_2 493826
update_radius 493827
split_0 494148
refine_F 502211
dft 502215
all_roots 529610
clean_roots 529656
fix_roots 530646
a_posteriori_errors 530658
mygprec_special 530661
logpre_modulus 606586
logmodulus 606587
abs_update_r 778403
ind_maxlog2 902401
isexactscalar 931280
isreal 961608
initdft 996040
dual_modulus 1012150
usp 1126038
ZX_sturmpart 1128277
check_ab 1178904
tocomplex 1201007
isvalidcoeff 1229675
ZX_Uspensky 1313880
conformal_basecase 1403459
conformal_pol 1403579
fujiwara_bound_real 1406878
split_complete 1518948
append_clone 1603017
homothetie 1609624
logmin_modulus 1614387
root_error 1899189
mygprecrc_special 2161033
cmp_complex_appr 2231660
ZX_rescale2prim 2233898
fujiwara_bound 2265126
checkbound 2354938
refine_H 2459723
scalepol 4288066
mygprec_absolute 4300439
_mp_mul 4373423
logmax_modulus 4449730
splitpoleval 5223492
bkeval_single_power 5223894
newton_polygon 5505638
X2XP1 5990602
_mp_sqr 6291946
dblexp 6547176
quicktofp 6961191
RgX_gtofp_bit 7023258
abs_update 8003034
mydbllogr 9543799
homothetie2n 9955078
_gen_nored 11175556
eval_rel_pol 13134553
fft 14156283
_gen_one 14442957
ZX_to_ZiX 16455417
pol_to_gaussint 17584238
_mp_add 24650953
_mp_cmul 34729398
myshiftrc 35498696
homothetie_gauss 36492926
lower_bound 40945992
findpower 40946665
graeffe 49497199
mydbllog2r 56779374
mygprec 63699383
ZiX_sqr 99016092
myshiftic 135781948
mygprecrc 214995869
mydbllog2i 226314003
dbllog2 302590668

Generated by: LCOV version 1.16