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 - ifactor1.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30499-74bdd0ac5b) Lines: 1826 2230 81.9 %
Date: 2025-09-18 09:23:44 Functions: 107 122 87.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
COPY 0
ECM_alloc 57
ECM_init 57
ECM_loop 93
FpE_add_i 8291496
INIT 51358
SHALLOWCOPY 0
STORE 764991
STOREi 27777
STOREu 737062
ZV_aff 25650
Z_ECM 0
Z_factor 10258773
Z_factor_limit 55360
Z_factor_primes 142020
Z_factor_until 3045
Z_issmooth 0
Z_issmooth_fact 175880
Z_oddprimedivisors_fast 141417
Z_oddprimedivisors_gcd 142697
Z_pollardbrent 0
Z_pval_inplace 765
Z_to_Up 14
Zn_ispower 756
Zp_ispower 798
absZ_factor 3768254
absZ_factor_limit 287684
absZ_factor_limit_strict 895440
aux_end 142847
check_res 3927837
core 709564
core_init_from_squarefree 327
coreu 63008
coreu_fact 0
coreu_init_from_squarefree 247
diviiexact_inplace 1820
dvdii_inplace 219
ecm_elladd 234487
ecm_elladd0 240431
ecm_elladd2 7194
elldouble 40073
ellfacteur 3262
ellmult 25650
factorint 10290
factoru 3812233
factoru_primes 994636
factoru_result 18490116
factoru_sign 18948776
get_rule 208727
ifac_GC 0
ifac_check 0
ifac_checkprime 11176
ifac_core 353
ifac_crack 5741
ifac_decomp 2562
ifac_defrag 14
ifac_delete 45459
ifac_divide 9717
ifac_factor_dbg 0
ifac_factoru 807
ifac_find 15101
ifac_insert_multiplet 3279
ifac_ispowerful 7
ifac_isprime 27918
ifac_main 14021
ifac_moebius 236
ifac_moebiusu 663
ifac_next 6477
ifac_print 0
ifac_read 760
ifac_realloc 0
ifac_resort 7
ifac_skip 320
ifac_sort_one 7
ifac_start 2523
ifac_start_hint 5892
ifac_whoiswho 5746
ifactor 10324444
ifactor_sign 15278721
is_357_power 2800924
is_kth_power 480210
is_pth_power 68540
ispowerful 1708
matsmalltrunc_append 103189208
matsmalltrunc_init 40211624
maxomegaoddu 2416
maxomegau 71819
moebius 57048
moebiusu 2489999
moebiusu_fact 54194
nextprime 130781
one_iter 28258798
pollardbrent 3489
pollardbrent_i 802
precprime 56
radicalu 0
rho_dbg 0
snextpr 4531317
special_primes 36030
squfof 5057
squfof_ambig 2007
tridiv_bound 887519
tridiv_boundu 4583115
u_357_divides 16749874
u_forprime_next_fast 144119033
u_oddprimedivisors_gcd 872100
uis_357_power 2366913
uis_357_powermod 2421430
uis_357_powermod_32bit_1 14328
uis_357_powermod_32bit_2 846
uisprime_nosmall 6721
unextprime 1138012
unextprime_overflow 999243
update_pow 880
uprecprime 38
vecfactoroddu 0
vecfactoroddu_i 2416
vecfactorsquarefreeu 7014
vecfactorsquarefreeu_coprime 32762
vecfactoru 0
vecfactoru_i 31966
vecsquarefreeu 49

Generated by: LCOV version 1.16