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 - graph - plotport.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 899 1423 63.2 % Date: 2026-02-23 02:23:56 Functions: 93 131 71.0 % Legend: Lines: hit not hit

Function Name	Hit count
Appendx	28075
Appendy	44075
DTOL	116235
Draw	0
Rchain	6937
_box	58
_line	84
_move	354
_ploth	0
_plothexport	42
_psdraw	0
_psdraw_scale	0
check_rect	1842
check_rect_init	1703
chk_8bit	0
clipline	0
color_to_rgb	339
colormap_to_color	339
colorname_to_rgb	339
cp	0
cpd	0
dblV_from_RgV	22
fmt_convert	96
freeobj	6937
gen_draw	96
gendraw	0
get_xy	0
get_xy_from_vec	23600
gtodblList	11
hex2	0
initrect_get_arg	66
initrect_i	139
long_to_rgb	6650
param_recursion	0
pari_get_fmtplot	53
pari_get_psplot	41
pari_get_svgplot	55
pari_init_graphics	1491
pari_kill_plot_engine	1491
pari_plot_by_file	0
pari_set_plot_engine	1491
parploth	0
parplothexport	10
plotarc	0
plotbox	11
plotclip	0
plotcolor	0
plotcopy	0
plotcursor	30
plotdraw	0
plotexport	43
ploth	0
ploth0	0
plothexport	32
plothexport0	32
plothraw	0
plothraw_i	11
plothrawexport	11
plothsizes	0
plotinit	33
plotkill	139
plotline	11
plotlines	22
plotlinetype	200
plotmove	72
plotmove0	437
plotpoint	11
plotpoint0	22
plotpoints	22
plotpoints0	22
plotpointsize	0
plotpointtype	11
plotrbox	11
plotrecth	5
plotrecth0	5
plotrecth_i	47
plotrecthin	47
plotrecthraw	0
plotrecthraw_i	11
plotrecthrawin	58
plotrline	11
plotrmove	11
plotrpoint	11
plotscale	11
plotscale0	69
plotstring	234
ps_arc	0
ps_fillarc	0
ps_fillrect	0
ps_line	2370
ps_lines	24
ps_point	737
ps_points	18
ps_rect	47
ps_sc	2561
ps_string	84
psdraw	0
psploth	0
psploth0	0
psplothraw	0
rect2ps	41
rect2ps_i	41
rect2svg	55
rectarc0	0
rectbox0	80
rectline0	106
rectlines0	58
rectsplines	0
rectticks	232
rgb_to_long	339
rmiddle	6435
set_range	116
set_xrange	29175
set_yrange	45175
single_recursion	8905
spline_eval	0
svg_color	3750
svg_ell	0
svg_fillell	0
svg_fillrect	0
svg_head	55
svg_line	3385
svg_lines	50
svg_point	674
svg_points	20
svg_rect	65
svg_rescale	90548
svg_tail	55
svg_text	150
wxy_init	43
wxy_n	43

Generated by: LCOV version 1.16