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 30532-0c728fd268) Lines: 1467 1530 95.9 %
Date: 2025-10-17 09:22:15 Functions: 116 119 97.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
FFT 56
FFT_i 98
FFTinv 56
QX_complex_roots 296412
RgX_gtofp_bit 7031694
RgX_normalize1 35899
X2XP1 5990809
ZX_Uspensky 1313944
ZX_Uspensky_equal 28
ZX_Uspensky_equal_yes 14
ZX_Uspensky_no 21
ZX_deg1root 15274
ZX_graeffe 5390
ZX_realroots_irred 48651
ZX_rescale2prim 2233955
ZX_sturm 6395
ZX_sturm_i 123171
ZX_sturm_irred 116776
ZX_sturmpart 1128300
ZX_to_ZiX 16459760
ZiX_sqr 99029265
_gen_nored 11201287
_gen_one 14471252
_gen_zero 326136
_intervalcmp 0
_mp_add 24659917
_mp_cmul 34763939
_mp_mul 4374518
_mp_sqr 6298239
_mp_sub 0
_sqrtnr 22709
a_posteriori_errors 537224
abs_update 8005342
abs_update_r 778660
all_roots 536121
append_clone 1614197
bkeval_single_power 5235503
check_ab 1178928
checkbound 2354985
checkvalidpol 267058
clean_roots 536167
cleanroots 231763
cmp_complex_appr 2238528
conformal_basecase 1403926
conformal_mapping 467935
conformal_pol 1404045
dblexp 6549218
dbllog2 302714298
dft 502376
dual_modulus 1012470
eval_rel_pol 13138425
fft 14159623
fft2 7462
findpower 40958138
fix_roots 537226
fix_roots1 398470
fujiwara_bound 2271834
fujiwara_bound_real 1406980
graeffe 49507161
homothetie 1610111
homothetie2n 9957832
homothetie_gauss 36499435
ind_maxlog2 902684
initdft 996364
isexactpol 239753
isexactscalar 931714
isreal 961920
isvalidcoeff 1230229
logmax_modulus 4451061
logmin_modulus 1614856
logmodulus 606768
logpre_modulus 606756
logradius 493979
lower_bound 40957577
mydbllog2i 226451017
mydbllog2r 56771875
mydbllogr 9546884
mygprec 63758723
mygprec_absolute 4339985
mygprec_special 537230
mygprecrc 215198844
mygprecrc_special 2179202
myshiftic 135809284
myshiftrc 35507559
newton_polygon 5507313
optimize_split 493990
parameters 493989
pol_to_gaussint 17589485
polgraeffe 14
polmod_to_embed 84
polrootsbound 27298
polrootsbound_i 27291
polsolve 166717
quicktofp 6979216
realroots 50627
refine_F 502374
refine_H 2460529
root_error 1912579
roots 8018
roots_aux 239781
roots_com 239753
rootsdeg0 42
scalepol 4289497
scalepol2n 0
sol_ok 3378
solve_exact_pol 231145
split_0 494346
split_0_1 468297
split_0_2 468298
split_1 467936
split_2 493985
split_complete 1525919
split_fromU 493990
split_pols 166719
splitcauchy 166729
splitpoleval 5235688
tocomplex 1213981
update_radius 493988
usp 1126119

Generated by: LCOV version 1.16