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 29950-285c5b69ed) Lines: 1816 2220 81.8 % Date: 2025-02-05 09:09:51 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	7
ifac_resort	7
ifac_sort_one	7
Z_to_Up	14
ifac_defrag	14
uprecprime	32
precprime	49
vecsquarefreeu	49
ECM_alloc	57
ECM_init	57
ECM_loop	93
ifac_moebius	236
coreu_init_from_squarefree	247
ifac_skip	320
core_init_from_squarefree	327
ifac_core	353
ifac_moebiusu	663
Zn_ispower	756
ifac_read	760
Zp_ispower	798
pollardbrent_i	801
uis_357_powermod_32bit_2	829
ifac_factoru	863
update_pow	880
ispowerful	1708
diviiexact_inplace	1883
squfof_ambig	2091
maxomegaoddu	2373
vecfactoroddu_i	2373
ifac_start	2509
ifac_decomp	2568
Z_factor_until	3045
ellfacteur	3267
ifac_insert_multiplet	3284
pollardbrent	3494
squfof	5125
ifac_crack	5789
ifac_whoiswho	5794
ifac_start_hint	5940
ifac_next	6651
vecfactorsquarefreeu	7014
ecm_elladd2	7194
uisprime_nosmall	7866
ifac_divide	9847
factorint	10290
ifac_checkprime	11291
ifac_main	14213
uis_357_powermod_32bit_1	14434
ifac_find	15293
ZV_aff	25650
ellmult	25650
ifac_isprime	28148
STOREi	31161
vecfactoru_i	31925
vecfactorsquarefreeu_coprime	32590
special_primes	39423
elldouble	40073
ifac_delete	45877
Z_factor_limit	49828
INIT	51824
moebiusu_fact	54194
moebius	56799
coreu	62994
is_pth_power	69279
maxomegau	71606
nextprime	126847
Z_oddprimedivisors_fast	126934
Z_factor_primes	127537
Z_oddprimedivisors_gcd	128214
aux_end	128366
Z_issmooth_fact	178892
get_rule	208727
ecm_elladd	234487
ecm_elladd0	240431
absZ_factor_limit	290833
is_kth_power	470964
STOREu	681543
core	709545
STORE	712856
u_oddprimedivisors_gcd	809164
tridiv_bound	869542
absZ_factor_limit_strict	886952
factoru_primes	917223
unextprime_overflow	992591
unextprime	1129691
uis_357_power	2366980
uis_357_powermod	2422084
moebiusu	2482693
is_357_power	2801669
absZ_factor	3277043
factoru	3741711
check_res	3928711
tridiv_boundu	4369334
snextpr	4531317
FpE_add_i	8291496
Z_factor	9481735
ifactor	9541889
ifactor_sign	13999584
u_357_divides	15804309
factoru_result	17181661
factoru_sign	17613548
one_iter	28214184
matsmalltrunc_init	39829864
matsmalltrunc_append	101848015
u_forprime_next_fast	144129861

Generated by: LCOV version 1.16