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 - buch1.c (source / functions) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31041-bd73e9fcdd) Lines: 95.5 % 711 679 Test Date: 2026-07-22 22:45:42 Functions: 92.9 % 56 52 Legend: Lines:     hit not hit

Function Name	Hit count
GRH_last_prime	0
buchimag	0
buchreal	0
dbg_all	0
imag_be_honest	7
real_be_honest	7
mpqs_relations	336
bnf_increase_LIMC	2357
qfr3_canon_safe	3710
Buchquad	4424
quadclassunit0	4424
quadclassnos	5032
real_relations	5145
rel_to_col	8813
isless_iu	10416
gcdreal	33978
crabs	55146
quadclassno	113132
quad_be_honest	122364
get_clgp	122378
nthidealquad	122378
compute_invresquad	122390
trivial_relations	122392
subFBquad	122484
FBquad	122487
Buchquad_i	122592
sub_fact	149964
qfr3_pf	159390
get_R	159985
qfr3_random	161567
powsubFBquad	172082
imag_relations	175936
dist	184688
dist_set	184688
qfr5_factorback	197015
qfr5_pf	217588
qfr5_rho_pow	220157
qfi_factorback	264078
clearhash	294539
GRH_ensure	454948
is_bad	689066
QFR3_comp	1007545
qfr3_canon	1166963
QFR5_comp	1735160
quadGRHchk	1808974
qfr5_canon	1952748
cache_prime_quad	2053814
add_fact	3105896
largeprime	3471460
hash	3471516
qfi_random	5506585
random_form	5668174
init_form	6130078
Z_isquasismooth_prod	7093744
factorquad	7100591
QFI_comp	16471798

Generated by: LCOV version 2.0-1