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 30367-364c17a628) Lines: 1467 1530 95.9 %
Date: 2025-07-03 09:21:30 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 15273
_sqrtnr 22709
polrootsbound_i 27293
polrootsbound 27300
RgX_normalize1 35887
ZX_realroots_irred 48624
realroots 50627
ZX_sturm_irred 116761
ZX_sturm_i 123156
polsolve 166630
split_pols 166633
splitcauchy 166640
solve_exact_pol 231040
cleanroots 231644
isexactpol 239634
roots_com 239634
roots_aux 239662
checkvalidpol 266941
QX_complex_roots 290015
_gen_zero 325999
fix_roots1 394078
conformal_mapping 467772
split_1 467773
split_0_1 468096
split_0_2 468096
logradius 493817
parameters 493817
split_2 493819
update_radius 493819
optimize_split 493820
split_fromU 493820
split_0 494143
refine_F 502198
dft 502208
all_roots 529608
clean_roots 529651
a_posteriori_errors 530650
fix_roots 530653
mygprec_special 530658
logmodulus 606579
logpre_modulus 606583
abs_update_r 778414
ind_maxlog2 902378
isexactscalar 931280
isreal 961593
initdft 996027
dual_modulus 1012144
usp 1125933
ZX_sturmpart 1128174
check_ab 1178801
tocomplex 1200993
isvalidcoeff 1229675
ZX_Uspensky 1313786
conformal_basecase 1403434
conformal_pol 1403551
fujiwara_bound_real 1406778
split_complete 1518930
append_clone 1602997
homothetie 1609616
logmin_modulus 1614316
root_error 1899183
mygprecrc_special 2161021
cmp_complex_appr 2231676
ZX_rescale2prim 2233689
fujiwara_bound 2265026
checkbound 2354732
refine_H 2459696
scalepol 4288010
mygprec_absolute 4300369
_mp_mul 4373526
logmax_modulus 4449594
splitpoleval 5223471
bkeval_single_power 5223475
newton_polygon 5505629
X2XP1 5990096
_mp_sqr 6291795
dblexp 6547110
quicktofp 6960924
RgX_gtofp_bit 7023189
abs_update 8003075
mydbllogr 9544108
homothetie2n 9954864
_gen_nored 11177246
eval_rel_pol 13134438
fft 14156439
_gen_one 14442480
ZX_to_ZiX 16451723
pol_to_gaussint 17584114
_mp_add 24652293
_mp_cmul 34730845
myshiftrc 35497793
homothetie_gauss 36486717
lower_bound 40943194
findpower 40943623
graeffe 49492981
mydbllog2r 56776738
mygprec 63697801
ZiX_sqr 99004019
myshiftic 135789905
mygprecrc 214981299
mydbllog2i 224293631
dbllog2 300570965

Generated by: LCOV version 1.16