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 30288-703288f808) Lines: 1826 2230 81.9 %
Date: 2025-05-19 09:23:07 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 51820
SHALLOWCOPY 0
STORE 700671
STOREi 27780
STOREu 672739
ZV_aff 25650
Z_ECM 0
Z_factor 9486901
Z_factor_limit 49498
Z_factor_primes 123990
Z_factor_until 3045
Z_issmooth 0
Z_issmooth_fact 175971
Z_oddprimedivisors_fast 123387
Z_oddprimedivisors_gcd 124674
Z_pollardbrent 0
Z_pval_inplace 768
Z_to_Up 14
Zn_ispower 756
Zp_ispower 798
absZ_factor 3276211
absZ_factor_limit 287335
absZ_factor_limit_strict 887160
aux_end 124816
check_res 3920932
core 709562
core_init_from_squarefree 334
coreu 62994
coreu_fact 0
coreu_init_from_squarefree 247
diviiexact_inplace 1883
dvdii_inplace 219
ecm_elladd 234487
ecm_elladd0 240431
ecm_elladd2 7194
elldouble 40073
ellfacteur 3255
ellmult 25650
factorint 10290
factoru 3752134
factoru_primes 912607
factoru_result 17195414
factoru_sign 17627754
get_rule 208727
ifac_GC 0
ifac_check 0
ifac_checkprime 11267
ifac_core 360
ifac_crack 5783
ifac_decomp 2562
ifac_defrag 14
ifac_delete 45872
ifac_divide 9829
ifac_factor_dbg 0
ifac_factoru 863
ifac_find 15290
ifac_insert_multiplet 3272
ifac_ispowerful 7
ifac_isprime 28010
ifac_main 14189
ifac_moebius 236
ifac_moebiusu 663
ifac_next 6645
ifac_print 0
ifac_read 774
ifac_realloc 0
ifac_resort 7
ifac_skip 327
ifac_sort_one 7
ifac_start 2516
ifac_start_hint 5941
ifac_whoiswho 5788
ifactor 9546672
ifactor_sign 14000259
is_357_power 2796797
is_kth_power 424462
is_pth_power 64420
ispowerful 1708
matsmalltrunc_append 102066460
matsmalltrunc_init 39714241
maxomegaoddu 2327
maxomegau 71623
moebius 61736
moebiusu 2526267
moebiusu_fact 54194
nextprime 130781
one_iter 28262103
pollardbrent 3482
pollardbrent_i 802
precprime 56
radicalu 0
rho_dbg 0
snextpr 4531317
special_primes 36026
squfof 5113
squfof_ambig 2091
tridiv_bound 869575
tridiv_boundu 4369312
u_357_divides 15820591
u_forprime_next_fast 142921209
u_oddprimedivisors_gcd 808082
uis_357_power 2366947
uis_357_powermod 2417904
uis_357_powermod_32bit_1 13733
uis_357_powermod_32bit_2 825
uisprime_nosmall 7861
unextprime 1134427
unextprime_overflow 997845
update_pow 866
uprecprime 38
vecfactoroddu 0
vecfactoroddu_i 2327
vecfactorsquarefreeu 7014
vecfactorsquarefreeu_coprime 32567
vecfactoru 0
vecfactoru_i 31967
vecsquarefreeu 49

Generated by: LCOV version 1.16