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 - kernel/none - halfgcd.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30367-364c17a628) Lines: 215 219 98.2 %
Date: 2025-07-03 09:21:30 Functions: 20 20 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
mulqab 71
matid2 867
lastq 1284
mulqi 1284
ZM2_sqr 2338
mulT 7820
HGCD_split 120828
FIXUP0 123341
FIXUP1 183054
mulq 3069760
ZM_inv2 6193161
halfgcdii 6193377
signdet 6376163
ZM2_mul 7483572
HGCD_basecase 14932670
HGCD 15053260
magic_threshold 22966024
isint2n 23028376
uexpi 23028607
HGCD0 29158505

Generated by: LCOV version 1.16