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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30106-3f17b77578) Lines: 1886 2010 93.8 % Date: 2025-03-31 09:19:50 Functions: 103 103 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
kro_quad	28
mulqf	28
Zp_nosquare_m1	42
divfq	42
mulRc_direct	49
divqf	63
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	105
mulqq	1106
addRq	1274
mulRq	2310
divTp	3660
addsub_polmod	7203
ser_normalize	7658
quad_polmod_conj	18340
quad_polmod_norm	18340
div_scal_ser	18550
div_rfrac_scal	32139
div_polmod_same	37093
div_scal_rfrac	37767
sqr_ser_part	112731
gconj	133221
mul_gen_rfrac	161432
fix_rfrac	207774
inv_polmod	209968
Q_to_Fp	226838
div_rfrac_pol	262344
mul_ser_scal	316204
div_intmod_same	341986
add_ser_scal	408094
sqr_polmod	484275
div_ser	771510
gdivgunextu	1036796
sub_intmod_same	1053721
div_rfrac	1187237
divpT	1204910
div_ser_scal	1338593
Qdivis	1583909
divRc	2358153
mul_polmod	2674917
mul_intmod_same	2835817
add_rfrac	3018187
mulcxmI	3078997
gsubsg	3168038
mul_polmod_scal	3428782
add_intmod_same	3550213
ser_add	3581388
addQp	4762852
mulTp	4982863
mulcxpowIs	5524212
fill_ser	5693888
init_ser	5706235
quad_polmod_mul	5860762
div_T_scal	6726526
_serprec	7161978
mul_self_scal	7461000
mul_rfrac	7910285
mul_polmod_same	8565249
add_rfrac_scal	8811947
div_scal_pol	9274198
div_scal_T	9280992
rfrac_denom_mul_scal	9959428
mul_rfrac_scal	10455276
mulcIR	11664586
gdivgs	12965921
divpp	13212217
addsub_polmod_scal	13420724
addsub_frac_i	13628306
setfrac	14437019
mulcxI	15648408
mulpp	17503152
conj_i	19578027
addsub_pp	19967746
divcR	23127768
mkpadic_mod	24588591
ginv	36372950
mulrfrac	37587481
addsub_frac	41397050
add_scal	44619236
gred_rfrac2	44823313
gdivgu	54716644
Leading_is_neg	57792491
gred_rfrac_simple	57796671
gmulug	124340573
gmul2n	133226532
Qdivii	140102699
Qdiviu	141441319
mul_scal	150356939
transtype	154420315
divrunextu	224317603
gmulsg	229741588
gaddsg	270603017
mulcc	273966070
addRc	303947479
mulRc	351194562
gdiv	433976724
gsqr	1175209718
gsub	2848170361
gadd	6073195783
gmul	8754605217

Generated by: LCOV version 1.16