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 - ZX.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30504-e6f76a2795) Lines: 710 789 90.0 %
Date: 2025-09-29 09:23:05 Functions: 94 105 89.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
ZXV_ZX_fromdigits 0
ZXV_remi2n 0
ZXX_Z_add_shallow 0
ZX_digits 0
ZX_rescale2n 0
ZX_rescale_lt 0
Z_XpN_powu 0
_ZX_add 0
_ZX_divrem 0
_ZX_mul 0
_ZX_sqr 0
QXQM_sqr 7
ZX_div_by_X_1 21
ZXV_equal 28
zx_z_divexact 112
ZXQM_sqr 140
Xpm1_powu 434
QXQX_powers 476
RgX_check_ZXX 1022
zx_to_ZX 1344
ZXn_sqr 1575
QXQX_sqr 1904
ZXQX_sqr 1904
QXQX_QXQ_mul 3465
ZX_eval1 4718
QXQM_mul 4795
ZXX_sqr_Kronecker 5306
ZXX_max_lg 5403
ZXQM_mul 6286
ZM_mod2BIL_ZXQM 6426
ZXV_Z_mul 7476
ZXX_Z_mul 8883
ZXQX_ZXQ_mul 8988
QXQX_mul 13377
ZC_mod2BIL_ZXQC 14210
ZXQX_mul 22365
scalar_ZX_shallow 23016
Kronecker_to_ZXQX 24269
ZXX_evalx0 28548
ZX_rescale 36259
ZXT_remi2n 45296
ZXX_Z_divexact 56469
scalar_ZX 56471
Z_mod2BIL_ZXQ 63966
FqM_mul_Kronecker 81851
ZM_mod2BIL_FqM 81851
ZXV_dotproduct 82943
ZX_Z_add 87291
ZX_Z_add_shallow 95137
QX_sqr 95875
ZX_remi2n 105752
ZX_max_lg 108082
ZX_mulu 121184
ZXM_eval2BIL 176414
ZXM_expi 176414
ZX_Z_sub 182150
ZC_mod2BIL_FqC 305402
ZX_val 331906
RgX_check_QX 369833
ZX_Z_eval 523324
ZX_neg 599124
ZX_affine 667852
ZX_divuexact 977795
ZXC_eval2BIL 1091375
ZXC_expi 1091375
Z_mod2BIL_Fq 1199133
ZX_mod_Xnm1 1735765
Kronecker_to_ZXX 1767913
QX_ZX_rem 1833342
ZX_equal 2066985
ZXn_mul 2605568
Z_ZX_sub 2722883
RgX_check_ZX 2972037
ZXX_mul_Kronecker 3028236
QX_mul 3536812
ZX_Z_translate_basecase 3880342
ZX_Z_translate 3974537
ZX_Z_divexact 5103674
ZX_eval2BIL 5555182
ZX_expi 5555182
ZX_copy 5560686
ZX_shifti 6552736
RgXX_to_Kronecker 6675105
ZX_deriv 7942325
RgXX_to_Kronecker_spec 10010739
ZX_rem 11197762
ZX_Z_mul 14392027
ZX_sqrspec_sqri 18077389
ZX_sub 29606503
ZX_valrem 31566825
ZX_mulspec_mulii 37599918
ZX_add 38427627
Z_sqrshiftspec_ZX 43606891
Z_ZX_mulshiftspec 47668350
Z_mod2BIL_ZX 56930140
ZX_sqrspec_basecase 76521051
ZX_eval2BILspec 94563006
ZX_mul 112530038
ZX_mulspec 120992604
ZX_sqrspec 138873541
ZX_sqr 138881467
ZX_expispec 171104628
ZXX_renormalize 311561557
ZX_sqrspec_basecase_limb 316105396
ZX_valspec 331295675

Generated by: LCOV version 1.16