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 30582-6e9af8ee1d) Lines: 854 864 98.8 % Date: 2025-12-20 09:23:49 Functions: 60 60 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
vecsmall_balance	133
prlifttoKz	434
nfcompositumall	448
relative_pol	469
bnrclassfield_tower	490
prlifttoKzall	539
rnfkummer	721
_rnfkummer_step4	847
lifttoKz	903
prlifttoKz_i	973
_rnfkummer	1211
max_smu	2545
compositum_red	2877
get_tau	2877
kervirtualunit	2877
rnfkummer_init	2877
RgV_lambda	3003
compute_polrel	3003
ideallifttoKz	3003
nfX_Z_normalize	3003
rnfkummer_ell	3003
get_mmu	5775
powtau	6006
prconj	6720
to_alg	8778
bnrclassfield_sanitize	8925
downtoK	9002
mod_Xell_a	9002
Rg_lambda	9268
split_pol	18004
RgV_tau	18326
bnrclassfieldvec	30967
nfV_to_logFlv	35504
rnfkummer_initall	38549
disc_primes	38569
bnrclassfield	38695
logall	39760
bnrclassfield_H	40103
bnrclassfield_primepower	40145
cyclic_compos	40145
bid_primes	41572
rnfkummersimple	43309
bnf_cycgenmod	46186
futu	46186
reduce_mod_Qell	46311
reducebeta	46311
compute_beta	46312
get_prlist	46312
list_Hecke	46312
matlogall	46312
subgroup_info	46312
get_badbnf	49315
get_z	61990
isprincipalell	72660
lift_if_rational	76188
H_is_good	77616
nf_to_logFl	115416
prconj_in_list	116114
Rg_tau	285418
gsetvarn	290080

Generated by: LCOV version 1.16