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 30256-57c6c2b57f) Lines: 643 664 96.8 %
Date: 2025-05-08 09:19:02 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 40243325
_Fp_equal0 103392643
_Fp_equal1 29448630
_Fp_extgcd 3872929
_Fp_lquo 2393170
_Fp_mul 47960067
_Fp_neg 4715338
_Fp_rann 2225808
_Fp_red 47857072
_Fp_s 15128533
_Fp_unit 6973060
gaussmodulo 0
gaussmodulo2 0
gaussmoduloall 77
gen_addcol 5852869
gen_addrightmul 4143382
gen_colei 371371
gen_detops 42
gen_elem 3961765
gen_howell 101780
gen_howell_i 949587
gen_inv 591759
gen_is_inv 220773
gen_is_zerocol 4305231
gen_kernel 56126
gen_kernel_from_howell 99981
gen_kernel_howell 99911
gen_last_inv_diago 201691
gen_leftapply 15196038
gen_matid_hermite 56084
gen_matimage 157794
gen_matmul_hermite 2634613
gen_redcol 17646901
gen_reduce_mod_howell 43953
gen_rightapply 374465
gen_rightlincomb 7923520
gen_rightmulcol 20533447
gen_solve 43953
gen_solve_from_howell 43953
gen_zerocol 2952814
gen_zeromat 1561984
get_Fp_hermite 849639
matdetmod 84
matimagemod 157829
matinvmod 678010
matkermod 56161
matsolvemod 44156
matsolvemod_finite 43953
mkopU 955868
mkopmul 1882285
mkopswap 45843
mkoptransv 2891030
msolvemod0 77

Generated by: LCOV version 1.16