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 - subfield.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30640-c2c58e18c5) Lines: 927 946 98.0 %
Date: 2026-01-27 08:51:18 Functions: 51 51 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
RgV_negtranslate 283
RgV_translate 283
RgXY_to_RgC 37961
_subfield 1463
append 7707
bound_for_coeff 5827
calc_block 6686
chinese_retrieve_pol 5937
choose_prime 5215
cmsubfield_get_roots 1092
compute_data 5827
cycle_power_to_perm 42407
embedding 5937
field_is_contained 19474
fix_var 4845
galoissubfieldcm 210
get_bezout 5201
heap_climb 1764
heap_descend 2569
heap_pop 1421
heap_push 1232
im_block_by_perm 17109
init_primedata 5201
init_traces 5201
maxgen_subfields 287
nfsubfields 329
nfsubfields0 7088
nfsubfields_fa 259
nfsubfieldscm 1155
nfsubfieldsmax 154
ok_coeffs 11105
perm_mul_i 215696
polsimplify 11105
poltrace 8136
print_block_system 6348
quadsubfieldcm 140
rootsuptoconj 280
setvarn2 35
subfield 22775
subfield_generator 1876
subfields_cleanup 1568
subfields_get_ero 287
subfields_get_fa 595
subfields_of_given_degree 5544
subfields_poldata 5201
subfieldsall 595
test_block 22492
trace 42442
try_imag 280
try_subfield_generator 3318
twoembequation 2583

Generated by: LCOV version 1.16