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 30418-83092bf331) Lines: 643 664 96.8 %
Date: 2025-07-29 09:22:49 Functions: 53 55 96.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
gaussmodulo 0
gaussmodulo2 0
Z_split 28
Z_stab 28
gen_detops 42
gaussmoduloall 77
msolvemod0 77
matdetmod 84
gen_reduce_mod_howell 43953
gen_solve 43953
gen_solve_from_howell 43953
matsolvemod_finite 43953
matsolvemod 44156
mkopswap 45843
gen_matid_hermite 56084
gen_kernel 56126
matkermod 56161
gen_kernel_howell 99911
gen_kernel_from_howell 99981
gen_howell 101780
gen_matimage 157794
matimagemod 157829
gen_last_inv_diago 201691
gen_is_inv 220773
gen_colei 371371
gen_rightapply 374465
gen_inv 660933
matinvmod 747174
get_Fp_hermite 918805
mkopU 965730
gen_howell_i 1018760
gen_zeromat 1700346
mkopmul 2072460
_Fp_rann 2346831
_Fp_lquo 2393170
gen_matmul_hermite 2685949
mkoptransv 3133022
gen_zerocol 3212185
_Fp_extgcd 3882778
gen_elem 3971621
gen_addrightmul 4385332
gen_is_zerocol 4564623
_Fp_neg 4957289
gen_addcol 5861788
_Fp_unit 7353679
gen_rightlincomb 7943228
gen_leftapply 15296339
_Fp_s 15659922
gen_redcol 18357477
gen_rightmulcol 20770254
_Fp_equal1 30317773
_Fp_add 40463069
_Fp_mul 48222550
_Fp_red 49219206
_Fp_equal0 106638152

Generated by: LCOV version 1.16