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 - language - parse.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30703-cd958ce78c) Lines: 437 551 79.3 %
Date: 2026-02-23 09:22:43 Functions: 7 8 87.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
pari_parse 936876
yy_syntax_error_arguments 112
yydestruct 1873969
yypcontext_expected_tokens 112
yystpcpy 238
yysymbol_name 0
yysyntax_error 112
yytnamerr 854

Generated by: LCOV version 1.16