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 - lambert.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 237 264 89.8 %
Date: 2026-02-23 02:23:56 Functions: 18 22 81.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Wbra 6
dblL1L2 18
dbllambertW0 385946
dbllambertW0init 438
dbllambertW_1 71247
dbllambertW_1init 96
dbllambertWfritsch 540
dbllambertWhalleyspec 6
glambertW 67968
glambertW_i 69240
lamaux 542366
lambertW 546
lambertWC 67224
lambertp 24
mplambertW 0
mplambertX 0
mplambertx_logx 0
mplambertxlogx_x 0
reverse 132
serexp0 132
serlambertW 156
useC 1884

Generated by: LCOV version 1.16