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 30604-e5d817ee12) Lines: 857 867 98.8 % Date: 2026-01-09 09:21:43 Functions: 61 61 100.0 % 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	840
lifttoKz	903
prlifttoKz_i	973
_rnfkummer	1211
max_smu	2544
compositum_red	2870
get_tau	2870
kervirtualunit	2870
rnfkummer_init	2870
RgV_lambda	2996
compute_polrel	2996
ideallifttoKz	2996
nfX_Z_normalize	2996
rnfkummer_ell	2996
get_mmu	5768
powtau	5992
prconj	6720
to_alg	8764
bnrclassfield_sanitize	8918
downtoK	8988
mod_Xell_a	8988
Rg_lambda	9254
split_pol	17976
RgV_tau	18298
bnrclassfieldvec	30967
nfV_to_logFlv	35441
rnfkummer_initall	38542
disc_primes	38563
bnrclassfield	38696
logall	39752
bnr_check_var	39864
bnrclassfield_H	40096
bnrclassfield_primepower	40138
cyclic_compos	40138
bid_primes	41559
rnfkummersimple	43309
bnf_cycgenmod	46178
futu	46179
matlogall	46303
compute_beta	46304
get_prlist	46305
list_Hecke	46305
reduce_mod_Qell	46305
reducebeta	46305
subgroup_info	46305
get_badbnf	49301
get_z	61985
isprincipalell	72653
lift_if_rational	76188
H_is_good	77609
nf_to_logFl	115290
prconj_in_list	116109
Rg_tau	285378
gsetvarn	290080

Generated by: LCOV version 1.16