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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 30074-db9b3c0519) Lines: 1812 2216 81.8 % Date: 2025-03-13 08:38:27 Functions: 105 120 87.5 % Legend: Lines: hit not hit

Function Name	Hit count
COPY	0
SHALLOWCOPY	0
Z_ECM	0
Z_issmooth	0
Z_pollardbrent	0
coreu_fact	0
ifac_GC	0
ifac_check	0
ifac_factor_dbg	0
ifac_print	0
ifac_realloc	0
radicalu	0
rho_dbg	0
vecfactoroddu	0
vecfactoru	0
ifac_ispowerful	6
ifac_resort	6
ifac_sort_one	6
Z_to_Up	12
ifac_defrag	12
uprecprime	32
ECM_alloc	42
ECM_init	42
vecsquarefreeu	42
precprime	48
ECM_loop	66
coreu_init_from_squarefree	207
ifac_moebius	227
ifac_skip	275
core_init_from_squarefree	285
ifac_core	303
ifac_moebiusu	553
pollardbrent_i	625
Zn_ispower	648
ifac_read	652
Zp_ispower	684
ifac_factoru	724
update_pow	743
maxomegaoddu	831
vecfactoroddu_i	831
uis_357_powermod_32bit_2	844
ispowerful	1464
diviiexact_inplace	1618
squfof_ambig	1821
ifac_start	2162
ifac_decomp	2207
Z_factor_until	2610
ellfacteur	2778
ifac_insert_multiplet	2796
pollardbrent	2960
squfof	4378
ifac_crack	4953
ecm_elladd2	4956
ifac_whoiswho	4957
ifac_start_hint	5093
ifac_next	5680
vecfactorsquarefreeu	6012
uisprime_nosmall	6664
ifac_divide	8432
factorint	8820
ifac_checkprime	9656
ifac_main	12175
ifac_find	13102
uis_357_powermod_32bit_1	13941
ZV_aff	17820
ellmult	17820
STOREi	23919
ifac_isprime	24151
vecfactoru_i	27347
elldouble	27786
vecfactorsquarefreeu_coprime	27935
special_primes	30988
ifac_delete	39325
Z_factor_limit	42599
moebius	44301
INIT	44424
moebiusu_fact	46452
coreu	53990
is_pth_power	56107
maxomegau	61360
nextprime	113493
Z_oddprimedivisors_fast	114146
Z_factor_primes	114736
Z_oddprimedivisors_gcd	115348
aux_end	115396
get_rule	144006
Z_issmooth_fact	150612
ecm_elladd	162054
ecm_elladd0	166086
absZ_factor_limit	246573
is_kth_power	369441
core	608195
STOREu	608391
STORE	632441
u_oddprimedivisors_gcd	686480
tridiv_bound	753058
absZ_factor_limit_strict	760538
factoru_primes	783241
unextprime_overflow	806449
unextprime	923945
uis_357_power	2028294
uis_357_powermod	2071242
moebiusu	2205802
is_357_power	2398488
absZ_factor	2810172
snextpr	3056178
factoru	3214021
check_res	3362620
tridiv_boundu	3743800
FpE_add_i	5579856
Z_factor	8146082
ifactor	8197489
ifactor_sign	12017328
u_357_divides	13588470
factoru_result	14745076
factoru_sign	15115953
one_iter	19941935
matsmalltrunc_init	23441948
matsmalltrunc_append	62008806
u_forprime_next_fast	123269126

Generated by: LCOV version 1.16