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 - buch3.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 1523 1633 93.3 % Date: 2026-02-23 02:23:56 Functions: 120 125 96.0 % Legend: Lines: hit not hit

Function Name	Hit count
bnrinit0	0
dft_bound	0
isprincipalraygen	0
minkowski_bound	0
nf_deg1_prime	0
bnrclassnolist	6
bnrconductorofchar	6
ZM_intersect	11
bnrcompositum	11
bnrlcmcond	11
rnfnormgroup	12
decodemodule	18
discrayabslist	18
is_module	18
bnrliftsubgroup	22
compute_M0	23
bnrclassno_1	24
chk_listBU	24
discrayabslistarch	24
zsimp	24
bnfcertify	25
isprimitive	26
regulatorbound	26
rnfconductor	27
bnfnarrow	30
bnrisconductor0	30
minimforunits	33
bnrdisclist0	42
Hermite_bound	49
bnfcertify0	49
bound_unit_index	49
init_bad	49
lowerboundforregulator	49
zimmertbound	49
bnrconductor0	54
bnrclassno0	90
bnrclassno	96
get_nz	144
bnrdisc0	150
fasmall_append	150
bnrgaloismatrix	198
ABC_to_bnr	234
bnr_vecchar_sanitize	300
subgrouplist_cond_sub	325
factordivexact	348
get_NR1D	366
bnrisgalois	384
check_bnrgal	384
get_discdata	402
get_discray	402
zsimpjoin	444
bnrconductormod	448
bnrconductor_factored	510
bnrchar	513
bnrchar_i	513
bnrconductor	528
bnrmap	528
rnfconductor0	688
rnfnormgroup_i	690
factorpow	696
ZMV_mul	780
get_classno	780
hdet	876
rowselect_p	876
factormul	894
bnrclassno_all	948
factorsplice	1002
is_complex	1052
abmap_char_image	1056
bnr_char_sanitize	1080
vecselect_p	1152
abmap_nchar_image	1233
check_prime	1235
primecertify	1235
Lbnrclassno	1272
prV_norms	1344
bnrdisc	1410
bnrdisc_i	1410
is_zero	1544
bnrautmatrix	2652
idealmoddivisor	3010
bnrgaloisapply	3066
make_integral_Z	3742
bnrconductor_raw	4217
bnrconductor_factored_i	4727
quotient_expo	5146
bnr_subgroup_sanitize	7844
get_pinvpi	8449
get_pi	8569
idealmoddivisor_aux	12243
too_big	12627
bnrsurjection	12994
fast_val	15404
bnr_get_Ui	21670
compute_fact	21850
bnr_grp	27646
Buchray	35082
bnr_sanitize	35777
get_Gen	41200
bnrtoprimitive	48297
is_unit	50438
bnrconductor_factored_arch	53024
cond0_e	53024
condoo_archp	53024
subgroup_conductor_ok	81532
bnr_log_gen_arch	95059
subgroupcond	156482
conductor_elts	156807
subgrouplist0	158371
bnrinitmod	181136
ZM_content_mul	205145
Buchraymod	217084
Buchraymod_i	230765
bnrisconductor	235763
bnr_subgroup_check	235812
isprincipalray	328284
bnrisprincipal	334356
bnr_log_gen_pr	413904
contains	425679
ideallog_to_bnr	508963
ideallog_to_bnr_i	523326
ZM2_ZC2_mul	1170523
bnrisprincipalmod	1271641
bnr_get_El	1275617
bnr_get_U	1692480

Generated by: LCOV version 1.16