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 - char.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30425-4669acb345) Lines: 827 864 95.7 %
Date: 2025-07-30 09:23:31 Functions: 64 64 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
zncharker 21
charconj0 28
charker0 35
get_chi 35
bnr_coprime 42
chardiv0 42
charpow0 63
charmul0 154
charpow 189
charorder0 210
zncharpow 210
znlog0 294
get_cyc 532
znchardecompose 791
znchartokronecker 847
not_coprime 1855
znchar 3304
chareval 3605
znchartoprimitive 5572
zncharconj 5824
charconj 6678
coprime_tables 8015
cyc2elts_normal 8043
chardiv 10101
znchardiv 10108
chargalois 10493
zncharinduce 12271
Zideallog 23024
zncharconductor 24339
znstar 36138
zv_cyc_minimize 46627
znconreychar 46767
ncharvecexpo 57260
charker 99211
zv_cyc_minimal 100800
zv_charorder 101248
char_check 121191
znstar0 131479
znconreyfromchar 142954
znconreyfromchar_normalized 153111
zncharisodd 197582
zncharcheck 211085
char_denormalize 215789
cyc_normalize 254786
lcmuu 257075
znconreyexp 260799
char_normalize 295484
char_simplify 296933
charmul 302008
zncharmul 302015
znchar_quad 303331
zncharorder 393281
coprimes_zv 550004
znconreyconductor 742000
znconrey_check 913122
Zideallog_2k 949576
charorder 1388002
Zideallog_pk 2048658
chareval_i 2568706
znchareval 2570512
znconreylog 2654590
znconrey_normalized 2655023
znconreylog_normalize 2662037
checkznstar_i 3932090

Generated by: LCOV version 1.16