test/gradient-zero-stops.c

   1 /*
   2  * Copyright © 2007 Brian Ewins
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  * Author: Brian Ewins <Brian.Ewins@gmail.com>
  25  */
  26
  27 #include "cairo-test.h"
  28
  29 /* This test case is designed to exercise the following bug:
  30  *
  31  *      Crash when trying to paint gradient with no stops
  32  *      https://bugzilla.mozilla.org/show_bug.cgi?id=407104
  33  */
  34
  35 static cairo_test_draw_function_t draw;
  36
  37 cairo_test_t test = {
  38     "gradient-zero-stops",
  39     "Verifies that gradients with no stops dont cause problems.",
  40     2, 2,
  41     draw
  42 };
  43
  44 static cairo_test_status_t
  45 draw (cairo_t *cr, int width, int height)
  46 {
  47     cairo_pattern_t *pat;
  48
  49     pat = cairo_pattern_create_linear (0., 0., 1., 1.);
  50     cairo_set_source (cr, pat);
  51     cairo_paint (cr);
  52     cairo_pattern_destroy (pat);
  53
  54     pat = cairo_pattern_create_radial (0., 0., 0., 1., 1., 1.);
  55     cairo_set_source (cr, pat);
  56     cairo_paint (cr);
  57     cairo_pattern_destroy (pat);
  58
  59     return CAIRO_TEST_SUCCESS;
  60 }
  61
  62 int
  63 main (void)
  64 {
  65     return cairo_test (&test);
  66 }