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 - graph - plotX.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.14.0 lcov report (development 27775-aca467eab2) Lines: 15 165 9.1 %
Date: 2022-07-03 07:33:15 Functions: 3 17 17.6 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* Copyright (C) 2000  The PARI group.
       2             : 
       3             : This file is part of the PARI/GP package.
       4             : 
       5             : PARI/GP is free software; you can redistribute it and/or modify it under the
       6             : terms of the GNU General Public License as published by the Free Software
       7             : Foundation; either version 2 of the License, or (at your option) any later
       8             : version. It is distributed in the hope that it will be useful, but WITHOUT
       9             : ANY WARRANTY WHATSOEVER.
      10             : 
      11             : Check the License for details. You should have received a copy of it, along
      12             : with the package; see the file 'COPYING'. If not, write to the Free Software
      13             : Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
      14             : 
      15             : /*******************************************************************/
      16             : /*                                                                 */
      17             : /*                       HIGH RESOLUTION PLOT                      */
      18             : /*                                                                 */
      19             : /*******************************************************************/
      20             : 
      21             : #include "pari.h"
      22             : #include "paripriv.h"
      23             : #include "rect.h"
      24             : 
      25             : #ifdef HPPA
      26             : #  ifndef __GNUC__
      27             :      typedef char *caddr_t;
      28             : #  endif
      29             : #endif
      30             : 
      31             : BEGINEXTERN
      32             : #include <X11/XKBlib.h>
      33             : #include <X11/Xutil.h>
      34             : #include <X11/Xos.h>
      35             : #ifndef XK_c
      36             : #  include <X11/keysym.h>
      37             : #endif
      38             : ENDEXTERN
      39             : 
      40             : static Colormap PARI_Colormap;
      41             : 
      42             : struct data_x
      43             : {
      44             :   Display *display;
      45             :   Window win;
      46             :   int numcolors;
      47             :   GC gc;
      48             : };
      49             : 
      50             : /* after fork(), we don't want the child to recover but to exit */
      51             : static void
      52           0 : exiterr(const char *str)
      53             : {
      54           0 :   term_color(c_ERR);
      55           0 :   err_printf("\n  *** X fatal error: %s\n",str);
      56           0 :   term_color(c_NONE); _exit(1);
      57             : }
      58             : 
      59             : static long
      60           0 : rgb_to_pixel(Display *display, int r, int g, int b)
      61             : {
      62             :   XColor X;
      63           0 :   X.red   = r*65535/255;
      64           0 :   X.green = g*65535/255;
      65           0 :   X.blue  = b*65535/255;
      66           0 :   X.flags = DoRed | DoGreen | DoBlue;
      67           0 :   if (!XAllocColor(display,PARI_Colormap,&X)) exiterr("cannot allocate color");
      68           0 :   return X.pixel;
      69             : }
      70             : static long
      71           0 : colormapindex_to_pixel(Display *display, long i)
      72             : {
      73           0 :   GEN c = gel(GP_DATA->colormap, i+1);
      74           0 :   int r,g,b; color_to_rgb(c, &r,&g,&b);
      75           0 :   return rgb_to_pixel(display, r, g, b);
      76             : }
      77             : static long
      78           0 : rgb_color(Display *display, long c)
      79             : {
      80           0 :   int r,g,b; long_to_rgb(c, &r, &g, &b);
      81           0 :   return rgb_to_pixel(display, r, g, b);
      82             : }
      83             : 
      84           0 : static void SetForeground(void *data, long col)
      85             : {
      86           0 :   struct data_x *dx = (struct data_x *) data;
      87           0 :   XSetForeground(dx->display,dx->gc, rgb_color(dx->display,col));
      88           0 : }
      89             : 
      90           0 : static void DrawPoint(void *data, long x, long y)
      91             : {
      92           0 :   struct data_x *dx = (struct data_x *) data;
      93           0 :   XDrawPoint(dx->display,dx->win,dx->gc, x,y);
      94           0 : }
      95             : 
      96           0 : static void DrawLine(void *data, long x1, long y1, long x2, long y2)
      97             : {
      98           0 :   struct data_x *dx = (struct data_x *) data;
      99           0 :   XDrawLine(dx->display,dx->win,dx->gc, x1,y1, x2,y2);
     100           0 : }
     101             : 
     102           0 : static void DrawRectangle(void *data, long x, long y, long w, long h)
     103             : {
     104           0 :   struct data_x *dx = (struct data_x *) data;
     105           0 :   XDrawRectangle(dx->display,dx->win,dx->gc, x,y, w,h);
     106           0 : }
     107             : 
     108           0 : static void FillRectangle(void *data, long x, long y, long w, long h)
     109             : {
     110           0 :   struct data_x *dx = (struct data_x *) data;
     111           0 :   XFillRectangle(dx->display,dx->win,dx->gc, x,y, w,h);
     112           0 : }
     113             : 
     114           0 : static void DrawPoints(void *data, long nb, struct plot_points *p)
     115             : {
     116           0 :   struct data_x *dx = (struct data_x *) data;
     117           0 :   XPoint *xp=(XPoint*)pari_malloc(sizeof(xp)*nb);
     118             :   long i;
     119           0 :   for (i=0;i<nb;i++)
     120             :   {
     121           0 :     xp[i].x=p[i].x;
     122           0 :     xp[i].y=p[i].y;
     123             :   }
     124           0 :   XDrawPoints(dx->display,dx->win,dx->gc, xp, nb, 0);
     125           0 :   pari_free(xp);
     126           0 : }
     127             : 
     128           0 : static void DrawLines(void *data, long nb, struct plot_points *p)
     129             : {
     130           0 :   struct data_x *dx = (struct data_x *) data;
     131           0 :   XPoint *xp=(XPoint*)pari_malloc(sizeof(xp)*nb);
     132             :   long i;
     133           0 :   for (i=0;i<nb;i++)
     134             :   {
     135           0 :     xp[i].x=p[i].x;
     136           0 :     xp[i].y=p[i].y;
     137             :   }
     138           0 :   XDrawLines(dx->display,dx->win,dx->gc, xp, nb, 0);
     139           0 :   pari_free(xp);
     140           0 : }
     141             : 
     142           0 : static void DrawString(void *data, long x, long y, char *text, long numtext)
     143             : {
     144           0 :   struct data_x *dx = (struct data_x *) data;
     145           0 :   XDrawString(dx->display,dx->win,dx->gc, x,y, text, numtext);
     146           0 : }
     147             : 
     148             : #define MAX_BUF 256
     149             : 
     150             : static int
     151           0 : Xerror(Display *d, XErrorEvent *pari_err) {
     152             :   char buf[MAX_BUF];
     153           0 :   XGetErrorText(d,pari_err->error_code,buf,MAX_BUF);
     154           0 :   exiterr(buf); return 0;
     155             : }
     156             : 
     157             : static int
     158           0 : IOerror(Display *d) {
     159             :   char buf[MAX_BUF];
     160           0 :   sprintf(buf, "lost display on %s", DisplayString(d));
     161           0 :   exiterr(buf); return 0;
     162             : }
     163             : 
     164             : static void
     165          76 : draw(PARI_plot *T, GEN w, GEN x, GEN y)
     166             : {
     167             :   long oldwidth,oldheight;
     168             :   struct plot_eng plotX;
     169             :   struct data_x dx;
     170          76 :   double xs = 1, ys = 1;
     171             :   int screen, keystate;
     172             :   Display *display;
     173             :   GC gc;
     174             :   Window win;
     175             :   XEvent event;
     176             :   XSizeHints size_hints;
     177             :   XFontStruct *font_info;
     178             :   XSetWindowAttributes attrib;
     179             :   Atom wm_delete_window, wm_protocols;
     180             : 
     181          76 :   if (pari_daemon()) return;  /* parent process returns */
     182             : 
     183           0 :   display = XOpenDisplay(NULL);
     184           0 :   if (!display) exiterr("cannot open Display");
     185           0 :   font_info = XLoadQueryFont(display, "7x13");
     186           0 :   if (!font_info) exiterr("cannot open 7x13 font");
     187           0 :   XSetErrorHandler(Xerror);
     188           0 :   XSetIOErrorHandler(IOerror);
     189           0 :   PARI_Colormap = DefaultColormap(display, 0);
     190             : 
     191           0 :   screen = DefaultScreen(display);
     192           0 :   win = XCreateSimpleWindow
     193           0 :     (display, RootWindow(display, screen), 0, 0,
     194           0 :      T->width, T->height, 4,
     195           0 :      colormapindex_to_pixel(display, 1),
     196           0 :      colormapindex_to_pixel(display, 0));
     197             : 
     198           0 :   size_hints.flags = PPosition | PSize;
     199           0 :   size_hints.x = 0;
     200           0 :   size_hints.y = 0;
     201           0 :   size_hints.width  = T->width;
     202           0 :   size_hints.height = T->height;
     203           0 :   XSetStandardProperties
     204             :     (display, win, "PARI plot", NULL, None, NULL, 0, &size_hints);
     205             : 
     206           0 :   wm_delete_window = XInternAtom(display, "WM_DELETE_WINDOW", False);
     207           0 :   wm_protocols = XInternAtom(display, "WM_PROTOCOLS", False);
     208           0 :   XSetWMProtocols(display,win,&wm_delete_window, 1);
     209             : 
     210           0 :   XSelectInput (display, win,
     211             :     ExposureMask | ButtonPressMask | KeyReleaseMask | StructureNotifyMask);
     212             : 
     213             :   /* enable backing-store */
     214           0 :   attrib.backing_store = Always;
     215           0 :   attrib.backing_planes = AllPlanes;
     216           0 :   XChangeWindowAttributes(display,win,CWBackingStore|CWBackingPlanes,&attrib);
     217             : 
     218           0 :   gc = XCreateGC(display, win, 0, NULL);
     219           0 :   XSetFont(display, gc, font_info->fid);
     220             : 
     221           0 :   XClearWindow(display, win);
     222           0 :   XMapWindow(display, win);
     223           0 :   oldwidth  = T->width;
     224           0 :   oldheight = T->height;
     225           0 :   dx.display= display;
     226           0 :   dx.win = win;
     227           0 :   dx.numcolors = lg(GP_DATA->colormap)-1;
     228           0 :   dx.gc = gc;
     229           0 :   plotX.sc = &SetForeground;
     230           0 :   plotX.pt = &DrawPoint;
     231           0 :   plotX.ln = &DrawLine;
     232           0 :   plotX.bx = &DrawRectangle;
     233           0 :   plotX.fb = &FillRectangle;
     234           0 :   plotX.mp = &DrawPoints;
     235           0 :   plotX.ml = &DrawLines;
     236           0 :   plotX.st = &DrawString;
     237           0 :   plotX.pl = T;
     238           0 :   plotX.data = (void*)&dx;
     239             : 
     240           0 :   if (mt_is_thread())
     241           0 :     pari_thread_close();
     242             :   else
     243           0 :     pari_close();
     244             :   for(;;)
     245             :   {
     246           0 :     XNextEvent(display, &event);
     247           0 :     switch(event.type)
     248             :     {
     249           0 :       case ClientMessage:
     250           0 :         if (event.xclient.message_type != wm_protocols ||
     251           0 :             (Atom)event.xclient.data.l[0] != wm_delete_window) break;
     252             :       case ButtonPress:
     253             :       case DestroyNotify:
     254           0 : EXIT:
     255           0 :         XUnloadFont(display,font_info->fid);
     256           0 :         XFreeGC(display,gc);
     257           0 :         XCloseDisplay(display); _exit(0);
     258             : 
     259           0 :       case KeyRelease:
     260             :         /* Mod4 == Super on "std" Linux */
     261           0 :         keystate = event.xkey.state & (ShiftMask|ControlMask|Mod1Mask|Mod4Mask);
     262           0 :         switch (XkbKeycodeToKeysym(display, event.xkey.keycode, 0,0))
     263             :         {
     264           0 :         case XK_q:
     265           0 :           if (!keystate || keystate == ControlMask) goto EXIT;
     266           0 :           break;
     267           0 :         case XK_c:
     268           0 :           if (keystate == ControlMask) goto EXIT;
     269           0 :           break;
     270             :         }
     271           0 :         break;
     272             : 
     273           0 :       case ConfigureNotify:
     274             :       {
     275           0 :         int width  = event.xconfigure.width;
     276           0 :         int height = event.xconfigure.height;
     277             : 
     278           0 :         if (width == oldwidth && height == oldheight) break;
     279           0 :         oldwidth  = width;
     280           0 :         oldheight = height;
     281             : 
     282             :         /* recompute scale */
     283           0 :         xs = ((double)width)/T->width;
     284           0 :         ys = ((double)height)/T->height;
     285           0 :         XClearWindow(display, win);
     286             :       }
     287           0 :       case Expose:
     288           0 :         gen_draw(&plotX, w, x, y, xs, ys);
     289             :     }
     290           0 :   }
     291             : }
     292             : 
     293             : INLINE void
     294         176 : gp_get_display_sizes(long *dwidth, long *dheight, long *fwidth, long *fheight)
     295             : {
     296             :   Display *display;
     297             : 
     298         176 :   display = XOpenDisplay(NULL);
     299         176 :   if (display)
     300             :   {
     301           0 :     int screen = DefaultScreen(display);
     302           0 :     *dwidth  = DisplayWidth(display, screen);
     303           0 :     *dheight = DisplayHeight(display, screen);
     304           0 :     XCloseDisplay(display);
     305             :   }
     306             :   else
     307             :   {
     308             :     /* Situation looks grim */
     309         176 :     *dwidth  = 0;
     310         176 :     *dheight = 0;
     311             :   }
     312         176 :   *fwidth  = 7;
     313         176 :   *fheight = 13;
     314         176 : }
     315             : 
     316             : void
     317         176 : gp_get_plot(PARI_plot *T)
     318             : {
     319         176 :   gp_get_plot_generic(T,gp_get_display_sizes);
     320         176 :   T->draw = &draw;
     321         176 : }

Generated by: LCOV version 1.13