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 30531-d68fd7cb7d) Lines: 1467 1530 95.9 %
Date: 2025-10-15 09:22:51 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 15275
_sqrtnr 22710
polrootsbound_i 27293
polrootsbound 27300
RgX_normalize1 35901
ZX_realroots_irred 48653
realroots 50627
ZX_sturm_irred 116777
ZX_sturm_i 123172
polsolve 166720
split_pols 166725
splitcauchy 166732
solve_exact_pol 231145
cleanroots 231763
isexactpol 239753
roots_com 239753
roots_aux 239781
checkvalidpol 267060
QX_complex_roots 296413
_gen_zero 326148
fix_roots1 398468
conformal_mapping 467930
split_1 467932
split_0_1 468293
split_0_2 468293
logradius 493979
split_2 493981
parameters 493983
split_fromU 493983
update_radius 493983
optimize_split 493984
split_0 494342
refine_F 502365
dft 502368
all_roots 536119
clean_roots 536165
a_posteriori_errors 537219
fix_roots 537222
mygprec_special 537228
logpre_modulus 606755
logmodulus 606756
abs_update_r 778657
ind_maxlog2 902678
isexactscalar 931714
isreal 961913
initdft 996352
dual_modulus 1012465
usp 1126012
ZX_sturmpart 1128167
check_ab 1178794
tocomplex 1213959
isvalidcoeff 1230235
ZX_Uspensky 1313814
conformal_basecase 1403907
conformal_pol 1404029
fujiwara_bound_real 1406850
split_complete 1525904
homothetie 1610102
append_clone 1614177
logmin_modulus 1614814
root_error 1912582
mygprecrc_special 2179184
ZX_rescale2prim 2233669
cmp_complex_appr 2238544
fujiwara_bound 2271714
checkbound 2354718
refine_H 2460525
scalepol 4289439
mygprec_absolute 4339960
_mp_mul 4374513
logmax_modulus 4450962
bkeval_single_power 5235719
splitpoleval 5235842
newton_polygon 5507196
X2XP1 5990151
_mp_sqr 6298228
dblexp 6549135
quicktofp 6978974
RgX_gtofp_bit 7031569
abs_update 8005451
mydbllogr 9546881
homothetie2n 9957690
_gen_nored 11202199
eval_rel_pol 13138197
fft 14159210
_gen_one 14472956
ZX_to_ZiX 16458980
pol_to_gaussint 17589198
_mp_add 24660891
_mp_cmul 34764386
myshiftrc 35507148
homothetie_gauss 36499176
lower_bound 40956789
findpower 40957434
graeffe 49506415
mydbllog2r 56770681
mygprec 63758673
ZiX_sqr 99029515
myshiftic 135803131
mygprecrc 215193152
mydbllog2i 226448114
dbllog2 302707125

Generated by: LCOV version 1.16