libgimpcolor/test-color-parser.c

   1 /* unit tests for the color parsing routines in gimprgb-parse.c
   2  */
   3
   4 #include "config.h"
   5
   6 #include <stdlib.h>
   7
   8 #include <babl/babl.h>
   9 #include <gegl.h>
  10 #include <gdk-pixbuf/gdk-pixbuf.h>
  11
  12 #include <glib-object.h>
  13 #include <cairo.h>
  14
  15 #include "gimpcolor.h"
  16
  17
  18 #define DBL(c) ((gdouble)(c) / 255.0)
  19
  20
  21 typedef struct
  22 {
  23   const gchar   *str;
  24   gboolean       alpha;
  25   gboolean       fail;
  26   const gdouble  r;
  27   const gdouble  g;
  28   const gdouble  b;
  29   const gdouble  a;
  30 } ColorSample;
  31
  32 static const ColorSample samples[] =
  33 {
  34   /* sample                  alpha  fail   red       green     blue     alpha */
  35
  36   { "#000000",               FALSE, FALSE, 0.0,      0.0,      0.0,      0.0 },
  37   { "#FFff00",               FALSE, FALSE, 1.0,      1.0,      0.0,      0.0 },
  38   { "#6495ed",               FALSE, FALSE, DBL(100), DBL(149), DBL(237), 0.0 },
  39   { "#fff",                  FALSE, FALSE, 1.0,      1.0,      1.0,      0.0 },
  40   { "#64649595eded",         FALSE, FALSE, 1.0,      1.0,      0.0,      0.0 },
  41   { "rgb(0,0,0)",            FALSE, FALSE, 0.0,      0.0,      0.0,      0.0 },
  42   { "rgb(100,149,237)",      FALSE, FALSE, DBL(100), DBL(149), DBL(237), 0.0 },
  43   { "rgba(100%,0,100%,0.5)", TRUE,  FALSE, 255.0,    0.0,      255.0,    0.5 },
  44   { "rgba(100%,0,100%,0.5)", FALSE, TRUE,  255.0,    0.0,      255.0,    0.5 },
  45   { "rgb(100%,149,20%)",     FALSE, FALSE, 1.0,      DBL(149), 0.2,      0.0 },
  46   { "rgb(100%,149,20%)",     TRUE,  TRUE,  1.0,      DBL(149), 0.2,      0.0 },
  47   { "rgb(foobar)",           FALSE, TRUE,  0.0,      0.0,      0.0,      0.0 },
  48   { "rgb(100,149,237",       FALSE, TRUE,  0.0,      0.0,      0.0,      0.0 },
  49   { "rED",                   FALSE, FALSE, 1.0,      0.0,      0.0,      0.0 },
  50   { "cornflowerblue",        FALSE, FALSE, DBL(100), DBL(149), DBL(237), 0.0 },
  51   { "    red",               FALSE, FALSE, 1.0,      0.0,      0.0,      0.0 },
  52   { "red      ",             FALSE, FALSE, 1.0,      0.0,      0.0,      0.0 },
  53   { "red",                   TRUE,  TRUE,  1.0,      0.0,      0.0,      0.0 },
  54   { "red  blue",             FALSE, TRUE,  0.0,      0.0,      0.0,      0.0 },
  55   { "transparent",           FALSE, TRUE,  0.0,      0.0,      0.0,      0.0 },
  56   { "transparent",           TRUE,  FALSE, 0.0,      0.0,      0.0,      0.0 },
  57   { "23foobar",              FALSE, TRUE,  0.0,      0.0,      0.0,      0.0 },
  58   { "",                      FALSE, TRUE,  0.0,      0.0,      0.0,      0.0 }
  59 };
  60
  61
  62 static gint
  63 check_failure (const ColorSample *sample,
  64                gboolean           success,
  65                GimpRGB           *rgb)
  66 {
  67   if (success && sample->fail)
  68     {
  69       g_print ("Parser succeeded for sample \"%s\" but should have failed!\n"
  70                "  parsed color: (%g, %g, %g, %g)\n",
  71                sample->str, rgb->r, rgb->g, rgb->b, rgb->a);
  72       return 1;
  73     }
  74
  75   if (!success && !sample->fail)
  76     {
  77       g_print ("Parser failed for sample \"%s\" but should have succeeded!\n"
  78                "  parsed color: (%g, %g, %g, %g)\n",
  79                sample->str, rgb->r, rgb->g, rgb->b, rgb->a);
  80       return 1;
  81     }
  82
  83   return 0;
  84 }
  85
  86 int
  87 main (void)
  88 {
  89   gint failures = 0;
  90   gint i;
  91
  92   g_print ("\nTesting the GIMP color parser ...\n");
  93
  94   for (i = 0; i < G_N_ELEMENTS (samples); i++)
  95     {
  96       GimpRGB   rgb = { 0.0, 0.0, 0.0, 0.0 };
  97       gboolean  success;
  98
  99       if (samples[i].alpha)
 100         success = gimp_rgba_parse_css (&rgb, samples[i].str, -1);
 101       else
 102         success = gimp_rgb_parse_css (&rgb, samples[i].str, -1);
 103
 104       failures += check_failure (samples + i, success, &rgb);
 105     }
 106
 107   if (failures)
 108     {
 109       g_print ("%d out of %d samples failed!\n\n",
 110                failures, (int)G_N_ELEMENTS (samples));
 111       return EXIT_FAILURE;
 112     }
 113   else
 114     {
 115       g_print ("All %d samples passed.\n\n", (int)G_N_ELEMENTS (samples));
 116       return EXIT_SUCCESS;
 117     }
 118 }
 119