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:

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 - bb_hnf.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30504-e6f76a2795) Lines: 643 664 96.8 %
Date: 2025-09-29 09:23:05 Functions: 53 55 96.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Z_split 28
Z_stab 28
_Fp_add 40461917
_Fp_equal0 106640089
_Fp_equal1 30317055
_Fp_extgcd 3882702
_Fp_lquo 2393170
_Fp_mul 48221184
_Fp_neg 4957218
_Fp_rann 2346747
_Fp_red 49219290
_Fp_s 15659601
_Fp_unit 7353855
gaussmodulo 0
gaussmodulo2 0
gaussmoduloall 77
gen_addcol 5861579
gen_addrightmul 4385278
gen_colei 371371
gen_detops 42
gen_elem 3971540
gen_howell 101780
gen_howell_i 1018789
gen_inv 660963
gen_is_inv 220773
gen_is_zerocol 4564699
gen_kernel 56126
gen_kernel_from_howell 99981
gen_kernel_howell 99911
gen_last_inv_diago 201691
gen_leftapply 15295774
gen_matid_hermite 56084
gen_matimage 157794
gen_matmul_hermite 2685747
gen_redcol 18357462
gen_reduce_mod_howell 43953
gen_rightapply 374465
gen_rightlincomb 7943064
gen_rightmulcol 20769789
gen_solve 43953
gen_solve_from_howell 43953
gen_zerocol 3212213
gen_zeromat 1700396
get_Fp_hermite 918825
matdetmod 84
matimagemod 157829
matinvmod 747212
matkermod 56161
matsolvemod 44156
matsolvemod_finite 43953
mkopU 965642
mkopmul 2072450
mkopswap 45843
mkoptransv 3132947
msolvemod0 77

Generated by: LCOV version 1.16