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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - F2xqE.c (source / functions) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 93.5 % 478 447 Test Date: 2026-07-23 17:04:59 Functions: 93.3 % 60 56 Legend: Lines:     hit not hit

Function Name	Hit count
F2xqE_mul	0
F2xqE_neg_i	0
F2xqE_sub	0
get_F2xqE_group	0
_can_lin	10
_frob_lin	10
F2xqE_tatepairing	28
F2xqE_log	42
F2xqE_neg	84
Z2XQ_invnorm_pcyc	238
F2xqE_order	280
_F2xqE_pairorder	401
F2xq_elltwist	3514
nonzerotrace_F2xq	3514
F2xq_ellgens	3738
F2xq_ellgroup	3808
F2xqE_weilpairing	5371
Z2XQ_invnorm	7184
F2x_Teichmuller	7191
F2x_is_pcyc	7422
solve_AGM_eqn	7422
F2xq_elltrace_Harley	7765
F2xqE_Miller	9120
F2xqE_Miller_add	9120
F2xqE_chord_update	9120
F2xqE_changepointinv	10360
RgE_to_F2xqE	10360
get_r	10465
_F2xqE_rand	13824
_can_invd	16427
_can_iter	16427
_lift_invd	16672
_lift_iter	16672
Z2XQ_frob	16682
F2xqE_Miller_dbl	16897
F2xqE_tangent_update	16897
F2xqE_Miller_line	16932
is_2_torsion	19373
get_v	23855
_F2xqE_mul	29520
gen_Z2X_Dixon	33139
_can_lins	34481
Z2xq_frob	34747
_frob_lins	34747
F2xqE_vert	35102
F2xqE_add	37621
_F2xqE_add	37621
F2xqE_add_slope	37656
F2xq_elltracej	37734
F2xq_ellcard	45699
ell_to_a4a6_F2xq	46168
_can_invls	50918
_frob_invls	51429
Z2x_rshift	69228
F2xqE_dbl	103686
_F2xqE_dbl	103686
F2xqE_dbl_slope	120660
gen_Z2x_Dixon	171575
F2xqE_changepoint	171794
random_F2xqE	181796

Generated by: LCOV version 2.0-1