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 30497-174c393803) Lines: 1467 1530 95.9 %
Date: 2025-09-15 09:23:33 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 5390
ZX_sturm 6395
fft2 7462
roots 8018
ZX_deg1root 15274
_sqrtnr 22709
polrootsbound_i 27291
polrootsbound 27298
RgX_normalize1 35885
ZX_realroots_irred 48652
realroots 50627
ZX_sturm_irred 116775
ZX_sturm_i 123170
polsolve 166720
split_pols 166722
splitcauchy 166731
solve_exact_pol 231145
cleanroots 231749
isexactpol 239739
roots_com 239739
roots_aux 239767
checkvalidpol 267044
QX_complex_roots 296415
_gen_zero 326164
fix_roots1 398400
split_1 467900
conformal_mapping 467901
split_0_1 468223
split_0_2 468223
update_radius 493950
parameters 493951
logradius 493952
optimize_split 493954
split_2 493954
split_fromU 493955
split_0 494276
refine_F 502339
dft 502343
all_roots 536105
clean_roots 536153
a_posteriori_errors 537152
fix_roots 537155
mygprec_special 537159
logmodulus 606736
logpre_modulus 606737
abs_update_r 778662
ind_maxlog2 902625
isexactscalar 931700
isreal 961854
initdft 996295
dual_modulus 1012402
usp 1125987
ZX_sturmpart 1128197
check_ab 1178824
tocomplex 1213926
isvalidcoeff 1230089
ZX_Uspensky 1313840
conformal_basecase 1403816
conformal_pol 1403935
fujiwara_bound_real 1406866
split_complete 1525704
homothetie 1610028
append_clone 1613979
logmin_modulus 1614773
root_error 1912365
mygprecrc_special 2178503
ZX_rescale2prim 2233663
cmp_complex_appr 2238482
fujiwara_bound 2271726
checkbound 2354778
refine_H 2460260
scalepol 4289151
mygprec_absolute 4339367
_mp_mul 4374551
logmax_modulus 4450751
splitpoleval 5235968
bkeval_single_power 5236469
newton_polygon 5507043
X2XP1 5990129
_mp_sqr 6298336
dblexp 6548783
quicktofp 6978858
RgX_gtofp_bit 7031299
abs_update 8004601
mydbllogr 9545748
homothetie2n 9957422
_gen_nored 11200961
eval_rel_pol 13137673
fft 14158894
_gen_one 14474606
ZX_to_ZiX 16455254
pol_to_gaussint 17588411
_mp_add 24663766
_mp_cmul 34765470
myshiftrc 35506816
homothetie_gauss 36497450
lower_bound 40955449
findpower 40955546
graeffe 49506886
mydbllog2r 56769113
mygprec 63752638
ZiX_sqr 99034500
myshiftic 135828622
mygprecrc 215173046
mydbllog2i 226421711
dbllog2 302681402

Generated by: LCOV version 1.16