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 30465-b757eeabfc) Lines: 1467 1530 95.9 %
Date: 2025-08-11 09:24:02 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 15272
_sqrtnr 22707
polrootsbound_i 27292
polrootsbound 27299
RgX_normalize1 35886
ZX_realroots_irred 48636
realroots 50627
ZX_sturm_irred 116761
ZX_sturm_i 123156
split_pols 166667
polsolve 166668
splitcauchy 166678
solve_exact_pol 231145
cleanroots 231749
isexactpol 239739
roots_com 239739
roots_aux 239767
checkvalidpol 267045
QX_complex_roots 296370
_gen_zero 326134
fix_roots1 398398
split_1 467899
conformal_mapping 467900
split_0_1 468219
split_0_2 468219
logradius 493947
split_2 493949
optimize_split 493950
parameters 493950
split_fromU 493950
update_radius 493953
split_0 494273
refine_F 502333
dft 502342
all_roots 536065
clean_roots 536107
a_posteriori_errors 537110
fix_roots 537112
mygprec_special 537114
logmodulus 606726
logpre_modulus 606726
abs_update_r 778633
ind_maxlog2 902633
isexactscalar 931700
isreal 961848
initdft 996286
dual_modulus 1012419
usp 1126043
ZX_sturmpart 1128246
check_ab 1178873
tocomplex 1213830
isvalidcoeff 1230090
ZX_Uspensky 1313871
conformal_basecase 1403811
conformal_pol 1403929
fujiwara_bound_real 1406882
split_complete 1525657
homothetie 1610032
append_clone 1613925
logmin_modulus 1614770
root_error 1912266
mygprecrc_special 2178388
ZX_rescale2prim 2233905
cmp_complex_appr 2238477
fujiwara_bound 2271631
checkbound 2354876
refine_H 2460296
scalepol 4289163
mygprec_absolute 4339093
_mp_mul 4373707
logmax_modulus 4450749
splitpoleval 5233455
bkeval_single_power 5233572
newton_polygon 5506902
X2XP1 5990628
_mp_sqr 6297079
dblexp 6548783
quicktofp 6978767
RgX_gtofp_bit 7031146
abs_update 8004707
mydbllogr 9546250
homothetie2n 9957349
_gen_nored 11193938
eval_rel_pol 13137639
fft 14158799
_gen_one 14466933
ZX_to_ZiX 16457702
pol_to_gaussint 17588386
_mp_add 24655948
_mp_cmul 34750087
myshiftrc 35505955
homothetie_gauss 36498106
lower_bound 40954708
findpower 40955194
graeffe 49505156
mydbllog2r 56754291
mygprec 63754125
ZiX_sqr 99038502
myshiftic 135794455
mygprecrc 215180779
mydbllog2i 226409210
dbllog2 302638174

Generated by: LCOV version 1.16