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 30499-74bdd0ac5b) Lines: 643 664 96.8 %
Date: 2025-09-18 09:23:44 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 40462278
_Fp_equal0 106640615
_Fp_equal1 30317269
_Fp_extgcd 3882723
_Fp_lquo 2393170
_Fp_mul 48221569
_Fp_neg 4957250
_Fp_rann 2346803
_Fp_red 49219286
_Fp_s 15659682
_Fp_unit 7353930
gaussmodulo 0
gaussmodulo2 0
gaussmoduloall 77
gen_addcol 5861589
gen_addrightmul 4385269
gen_colei 371371
gen_detops 42
gen_elem 3971564
gen_howell 101780
gen_howell_i 1018784
gen_inv 660960
gen_is_inv 220773
gen_is_zerocol 4564623
gen_kernel 56126
gen_kernel_from_howell 99981
gen_kernel_howell 99911
gen_last_inv_diago 201691
gen_leftapply 15295854
gen_matid_hermite 56084
gen_matimage 157794
gen_matmul_hermite 2685793
gen_redcol 18357663
gen_reduce_mod_howell 43953
gen_rightapply 374465
gen_rightlincomb 7943116
gen_rightmulcol 20769908
gen_solve 43953
gen_solve_from_howell 43953
gen_zerocol 3212215
gen_zeromat 1700397
get_Fp_hermite 918823
matdetmod 84
matimagemod 157829
matinvmod 747211
matkermod 56161
matsolvemod 44156
matsolvemod_finite 43953
mkopU 965670
mkopmul 2072461
mkopswap 45843
mkoptransv 3132970
msolvemod0 77

Generated by: LCOV version 1.16