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 30364-8108102770) Lines: 1826 2230 81.9 %
Date: 2025-06-30 09:21:07 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 51764
SHALLOWCOPY 0
STORE 700940
STOREi 27779
STOREu 673009
ZV_aff 25650
Z_ECM 0
Z_factor 9802344
Z_factor_limit 55022
Z_factor_primes 124048
Z_factor_until 3045
Z_issmooth 0
Z_issmooth_fact 176186
Z_oddprimedivisors_fast 123445
Z_oddprimedivisors_gcd 124725
Z_pollardbrent 0
Z_pval_inplace 765
Z_to_Up 14
Zn_ispower 756
Zp_ispower 798
absZ_factor 3336942
absZ_factor_limit 287682
absZ_factor_limit_strict 895441
aux_end 124873
check_res 3927803
core 709541
core_init_from_squarefree 327
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 3799251
factoru_primes 912709
factoru_result 17606735
factoru_sign 18065370
get_rule 208727
ifac_GC 0
ifac_check 0
ifac_checkprime 11267
ifac_core 353
ifac_crack 5783
ifac_decomp 2562
ifac_defrag 14
ifac_delete 45823
ifac_divide 9829
ifac_factor_dbg 0
ifac_factoru 863
ifac_find 15269
ifac_insert_multiplet 3272
ifac_ispowerful 7
ifac_isprime 28004
ifac_main 14189
ifac_moebius 236
ifac_moebiusu 663
ifac_next 6645
ifac_print 0
ifac_read 760
ifac_realloc 0
ifac_resort 7
ifac_skip 320
ifac_sort_one 7
ifac_start 2509
ifac_start_hint 5934
ifac_whoiswho 5788
ifactor 9867678
ifactor_sign 14390598
is_357_power 2800895
is_kth_power 478268
is_pth_power 68530
ispowerful 1708
matsmalltrunc_append 98939805
matsmalltrunc_init 38922708
maxomegaoddu 2278
maxomegau 71802
moebius 57580
moebiusu 2472971
moebiusu_fact 54194
nextprime 130781
one_iter 28260783
pollardbrent 3482
pollardbrent_i 802
precprime 56
radicalu 0
rho_dbg 0
snextpr 4531317
special_primes 36025
squfof 5113
squfof_ambig 2091
tridiv_bound 869555
tridiv_boundu 4376822
u_357_divides 16046945
u_forprime_next_fast 142405062
u_oddprimedivisors_gcd 808127
uis_357_power 2366933
uis_357_powermod 2421415
uis_357_powermod_32bit_1 14314
uis_357_powermod_32bit_2 846
uisprime_nosmall 7855
unextprime 1135496
unextprime_overflow 997934
update_pow 866
uprecprime 38
vecfactoroddu 0
vecfactoroddu_i 2278
vecfactorsquarefreeu 7014
vecfactorsquarefreeu_coprime 32746
vecfactoru 0
vecfactoru_i 31966
vecsquarefreeu 49

Generated by: LCOV version 1.16