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 - gen2.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30418-83092bf331) Lines: 1554 1658 93.7 %
Date: 2025-07-29 09:22:49 Functions: 149 156 95.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Q_lval 9345367
Q_lvalrem 6302709
Q_pval 9341166
Q_pvalrem 6304307
ZV_Z_dvd 1309
ZV_lval 0
ZV_lvalrem 0
ZV_pval 30905
ZV_pvalrem 4173273
ZXV_pvalrem 0
ZXX_pvalrem 1190
ZX_gen_pvalrem 1190
ZX_lval 748784
ZX_lvalrem 721
ZX_pval 101289
ZX_pvalrem 4303608
Z_lval 63198023
Z_lvalrem 63578231
Z_lvalrem_stop 116579906
Z_pval 47459059
Z_pvalrem 67946174
Z_pvalrem_DC 2142482
_Fp_div 163005
_domul 2267051
affgc 2590
chk_true_err 189
closure_identical 70
cmp_str 672
cmp_universal 85264158
cmp_universal_rec 39264517
cmpfrac 4589603
cmpgen 161
cmpifrac 455548
cmprfrac 81259
col_test 294560
ctop 14
cvstop2 399
cvtop 600506
cvtop2 17619181
cx_approx0 2558465
cx_approx_equal 49981
ensure_nb 810971
factorial_lval 1992843
frac_lval 381327
frac_val 292596
gabs 53871011
gassoc_proto 2466575
gcmp 299160746
gcmpsg 790988
gcvtop 126
gen_2val 773487
gen_2valrem 4911609
gen_Z_divides 6859
gen_lval 870660
gen_lvalrem 8464708
gen_pval 132194
gen_pvalrem 8476886
gen_pvalrem_DC 11756
gen_z_divides 4935
gequal 243033155
gequal0 2494113133
gequal1 341424427
gequalX 8485606
gequal_try 3192937
gequalm1 74233087
gequalsg 43988
gexpo 840577542
gexpo_safe 840871442
gidentical 54817595
gisexactzero 57212828
glength 5148686
gmax 79310
gmaxgs 0
gmequal_try 28
gmin 12305
gmings 0
gneg 465143344
gneg_i 129551701
gpexponent 89998
gpvaluation 3934
gsigne 80783565
gtolist 5930
gtolong 77
gtranslength 3878
gvaluation 1399767
identicalrr 1547
intdvd 91
is_monomial_test 22661166
is_negative 0
isexactzero 575888297
isless_iu 15003394
isrationalzero 768494510
itop2_coprime 17611669
lexcmp 1616259
lexcmp_i 1616259
lexcmp_s_matvec 21
lexcmp_scal_matvec 357
lexcmp_scal_vecsmall 42
lexcmp_similar 372031
lexcmp_vec_mat 98
lexcmp_vecsmall_mat 42
lexcmp_vecsmall_other 196
lexcmp_vecsmall_vec 154
lexcmpgs 42
lexcmpsg 343
list_cmp 343
listinsert 35014
listinsert0 35028
listpop 21917
listpop0 56
listput 776125
listput0 724955
listsort 21
map_proto_G 462
map_proto_lG 37560776
map_proto_lGL 126
mat_test 16366
matsize 1862
minval 137186
mklist 6835
mklist_typ 6891
mklistcopy 63
mkmap 49
normalizepol 99407445
normalizepol_approx 0
normalizepol_lg 937863398
normalizeser 13353870
padic_to_Fl 421694
padic_to_Fp 4298
polequal 12730210
polidentical 1528749
qtop 42
quadtofp 252
r_approx0 1809609
roughtype 3232861
serequal 420
seridentical 14
sizedigit 7
u_lval 66480930
u_lvalrem 88308590
u_lvalrem_stop 133795291
u_pval 136936
u_pvalrem 2626249
vecequal 5528436
vecidentical 5438047
vecindexmax 503184
vecindexmin 181870
vecmax 66201
vecmax0 226786
vecmin 35045
vecmin0 147213
z_lval 1844018
z_lvalrem 87346
z_pval 1317995
z_pvalrem 399
zx_lval 28931

Generated by: LCOV version 1.16