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 30556-bb9f5f8fc8) Lines: 643 664 96.8 %
Date: 2025-11-25 09:20:50 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 102494
gen_matimage 158508
matimagemod 158543
gen_last_inv_diago 202405
gen_is_inv 222327
gen_colei 369579
gen_rightapply 374465
gen_inv 659591
matinvmod 744888
get_Fp_hermite 918180
mkopU 950763
gen_howell_i 1018138
gen_zeromat 1698153
mkopmul 2065984
_Fp_lquo 2299038
_Fp_rann 2347823
gen_matmul_hermite 2650146
mkoptransv 3043687
gen_zerocol 3204916
_Fp_extgcd 4079686
gen_elem 4168530
gen_addrightmul 4258394
gen_is_zerocol 4621956
_Fp_neg 4770320
gen_addcol 6058360
_Fp_unit 7542777
gen_rightlincomb 8337048
gen_leftapply 12432599
_Fp_s 15979600
gen_redcol 18440490
gen_rightmulcol 21553812
_Fp_equal1 30935430
_Fp_add 36290056
_Fp_mul 49190630
_Fp_red 49861374
_Fp_equal0 103763454

Generated by: LCOV version 1.16