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 - divll_pre.h (source / functions) Coverage Total Hit
Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 100.0 % 48 48
Test Date: 2026-07-23 17:04:59 Functions: 100.0 % 5 5
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
get_Fl_red 2009836193
divll_pre 2163367907
divll_pre_normalized 11051489512
remll_pre 16262939532
remll_pre_normalized 16340232855

Generated by: LCOV version 2.0-1