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 - kummer.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 857 867 98.8 % Date: 2026-02-23 02:23:56 Functions: 61 61 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
vecsmall_balance	114
prlifttoKz	369
nfcompositumall	384
relative_pol	402
bnrclassfield_tower	420
prlifttoKzall	422
rnfkummer	582
_rnfkummer_step4	701
lifttoKz	732
prlifttoKz_i	791
_rnfkummer	1002
max_smu	2155
compositum_red	2431
get_tau	2431
kervirtualunit	2431
rnfkummer_init	2431
RgV_lambda	2539
compute_polrel	2539
ideallifttoKz	2539
nfX_Z_normalize	2539
rnfkummer_ell	2539
get_mmu	4881
powtau	5078
prconj	5688
to_alg	7420
bnrclassfield_sanitize	7608
downtoK	7608
mod_Xell_a	7608
Rg_lambda	7862
split_pol	15216
RgV_tau	15485
bnrclassfieldvec	26541
nfV_to_logFlv	30020
rnfkummer_initall	33033
disc_primes	33051
bnrclassfield	33165
logall	34038
bnr_check_var	34131
bnrclassfield_H	34365
bnrclassfield_primepower	34401
cyclic_compos	34401
bid_primes	35590
rnfkummersimple	37113
bnf_cycgenmod	39544
futu	39544
compute_beta	39652
get_prlist	39652
list_Hecke	39652
matlogall	39652
reduce_mod_Qell	39652
reducebeta	39652
subgroup_info	39652
get_badbnf	42191
get_z	53075
isprincipalell	62223
lift_if_rational	63855
H_is_good	66355
nf_to_logFl	97542
prconj_in_list	99404
Rg_tau	237488
gsetvarn	248640

Generated by: LCOV version 1.16