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 - FpE.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30258-3ec8de0880) Lines: 1093 1199 91.2 % Date: 2025-05-10 09:18:45 Functions: 122 130 93.8 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_ellcard_Shanks	254753
Fl_ellpoint	7227
Fl_elltrace	621556
Fl_elltrace_CM	1164937
Fl_elltrace_naive	723421
Fle_add_inplace	5795651
Fle_dbl_inplace	227176
FpE_Miller	44
FpE_Miller_add	4
FpE_Miller_dbl	92
FpE_Miller_line	45
FpE_add	916615
FpE_add_ip	305694
FpE_add_slope	916619
FpE_changepoint	1712
FpE_changepointinv	2720
FpE_chord_update	4
FpE_dbl	288152
FpE_dbl_slope	288746
FpE_log	49
FpE_mul	1301
FpE_neg	362490
FpE_neg_i	0
FpE_order	737
FpE_sub	0
FpE_tangent_update	92
FpE_tatepairing	203
FpE_to_FpJ	204027
FpE_to_mod	1040
FpE_vert	140
FpE_weilpairing	72970
FpJ_add	1140964
FpJ_dbl	6306431
FpJ_mul	5711
FpJ_neg	0
FpJ_to_FpE	203521
FpXQE_Miller	63
FpXQE_Miller_add	567
FpXQE_Miller_dbl	4158
FpXQE_Miller_line	4655
FpXQE_add	251500
FpXQE_add_slope	252060
FpXQE_changepoint	1876
FpXQE_changepointinv	976
FpXQE_chord_update	567
FpXQE_dbl	265037
FpXQE_dbl_slope	269139
FpXQE_log	0
FpXQE_mul	934
FpXQE_neg	73329
FpXQE_neg_i	0
FpXQE_order	14
FpXQE_sub	0
FpXQE_tangent_update	4158
FpXQE_tatepairing	7
FpXQE_vert	4788
FpXQE_weilpairing	28
FpXQ_ellcard	8578
FpXQ_ellcard_i	8578
FpXQ_ellcard_supersingular	7
FpXQ_ellcardj	1687
FpXQ_ellgens	8
FpXQ_ellgroup	15
FpXQ_ellj	1718
FpXQ_elljissupersingular	165515
FpXQ_elltwist	840
FpXQ_ffellcard	8
FpXQ_is4power	7
FpXQ_is_quad	33530
FpX_quad_root	1230
Fp_ellcard	2542508
Fp_ellcard_CM	2280718
Fp_ellcard_Shanks	79
Fp_ellgens	574
Fp_ellgroup	120715
Fp_ellj	56
Fp_ellj_get_CM	52676
Fp_ellj_nodiv	49104
Fp_ellj_to_a4a6	1050
Fp_elljissupersingular	3759
Fp_ellpoint	0
Fp_elltwist	0
Fp_ffellcard	14777
Fp_jissupersingular	2767
Fp_path_extends_to_floor	448
FqX_quad_root	71283
Fq_ellcard_supersingular	21
Fq_elljissupersingular	1050
Fq_path_extends_to_floor	4860
RgE_to_FpE	2720
RgE_to_FpXQE	976
_FpE_add	897344
_FpE_dbl	288152
_FpE_mul	925510
_FpE_pairorder	72725
_FpE_rand	186277
_FpJ_add	1140546
_FpJ_dbl	6289765
_FpJ_mul	5711
_FpXQE_add	251500
_FpXQE_dbl	265037
_FpXQE_mul	81874
_FpXQE_pairorder	21
_FpXQE_rand	147
_fix	19196
affii2	9440
ap_cm	1344
ap_j0	85134
ap_j1728	2642444
ap_j287496	140
ap_j8000	126
closest_lift	254902
compare_multiples	15378690
ec_ap_cm	497483
ellinf_FpJ	49719
ellsupersingularj_FpXQ	1204
ellsupersingularj_easy_FpXQ	1183
elltrace_extension	15540
find_inert_disc	1183
get_FpE_group	903
get_FpXQE_group	16
get_table_size	79
is_CMj	653315
jissupersingular	14007
random_FpE	188684
random_FpXQE	1081
random_nonsquare_Fp	420
random_nonsquare_FpXQ	840
u2_is_CMj	14425
uclosest_lift	261938

Generated by: LCOV version 1.16