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 30255-d53bcee72d) Lines: 1827 2230 81.9 %
Date: 2025-05-05 09:18:52 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 700619
STOREi 27779
STOREu 672688
ZV_aff 25650
Z_ECM 0
Z_factor 9486129
Z_factor_limit 49502
Z_factor_primes 123964
Z_factor_until 3045
Z_issmooth 0
Z_issmooth_fact 175737
Z_oddprimedivisors_fast 123361
Z_oddprimedivisors_gcd 124648
Z_pollardbrent 0
Z_pval_inplace 768
Z_to_Up 14
Zn_ispower 756
Zp_ispower 798
absZ_factor 3276110
absZ_factor_limit 287328
absZ_factor_limit_strict 887110
aux_end 124790
check_res 3920943
core 709553
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 3751189
factoru_primes 912575
factoru_result 17194429
factoru_sign 17626179
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 28009
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 9545936
ifactor_sign 13999348
is_357_power 2796809
is_kth_power 425128
is_pth_power 64434
ispowerful 1708
matsmalltrunc_append 98031871
matsmalltrunc_init 38307615
maxomegaoddu 2224
maxomegau 71629
moebius 57169
moebiusu 2489467
moebiusu_fact 54194
nextprime 130781
one_iter 28258055
pollardbrent 3482
pollardbrent_i 802
precprime 56
radicalu 0
rho_dbg 0
snextpr 4531317
special_primes 36024
squfof 5113
squfof_ambig 2091
tridiv_bound 869510
tridiv_boundu 4369376
u_357_divides 15796637
u_forprime_next_fast 142986571
u_oddprimedivisors_gcd 808078
uis_357_power 2366947
uis_357_powermod 2417915
uis_357_powermod_32bit_1 13733
uis_357_powermod_32bit_2 825
uisprime_nosmall 7861
unextprime 1134397
unextprime_overflow 997829
update_pow 866
uprecprime 38
vecfactoroddu 0
vecfactoroddu_i 2224
vecfactorsquarefreeu 7014
vecfactorsquarefreeu_coprime 32571
vecfactoru 0
vecfactoru_i 31967
vecsquarefreeu 49

Generated by: LCOV version 1.16