diff options
Diffstat (limited to 'test')
-rw-r--r-- | test/.gitignore | 1 | ||||
-rw-r--r-- | test/Makefile.am | 3 | ||||
-rw-r--r-- | test/degenerate-arc-ps-ref.png | bin | 0 -> 585 bytes | |||
-rw-r--r-- | test/degenerate-arc-ref.png | bin | 0 -> 616 bytes | |||
-rw-r--r-- | test/degenerate-arc.c | 82 |
5 files changed, 86 insertions, 0 deletions
diff --git a/test/.gitignore b/test/.gitignore index f34494e1b..cf6174088 100644 --- a/test/.gitignore +++ b/test/.gitignore @@ -43,6 +43,7 @@ dash-offset-negative dash-scale dash-state dash-zero-length +degenerate-arc degenerate-path degenerate-pen device-offset diff --git a/test/Makefile.am b/test/Makefile.am index ec98a4946..99a7eceb4 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -36,6 +36,7 @@ dash-offset-negative$(EXEEXT) \ dash-scale$(EXEEXT) \ dash-state$(EXEEXT) \ dash-zero-length$(EXEEXT) \ +degenerate-arc$(EXEEXT) \ degenerate-path$(EXEEXT) \ degenerate-pen$(EXEEXT) \ device-offset$(EXEEXT) \ @@ -349,6 +350,8 @@ REFERENCE_IMAGES = \ dash-zero-length-ps-rgb24-ref.png \ dash-zero-length-ref.png \ dash-zero-length-rgb24-ref.png \ + degenerate-arc-ref.png \ + degenerate-arc-ps-ref.png \ degenerate-pen-ref.png \ degenerate-pen-ps-ref.png \ degenerate-pen-quartz-ref.png \ diff --git a/test/degenerate-arc-ps-ref.png b/test/degenerate-arc-ps-ref.png Binary files differnew file mode 100644 index 000000000..3cbf4dabf --- /dev/null +++ b/test/degenerate-arc-ps-ref.png diff --git a/test/degenerate-arc-ref.png b/test/degenerate-arc-ref.png Binary files differnew file mode 100644 index 000000000..5112d7f91 --- /dev/null +++ b/test/degenerate-arc-ref.png diff --git a/test/degenerate-arc.c b/test/degenerate-arc.c new file mode 100644 index 000000000..f01b666ba --- /dev/null +++ b/test/degenerate-arc.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson <chris@chris-wilson.co.uk> + */ + +/* This test case exercises a "Potential division by zero in cairo_arc" + * reported by Luiz Americo Pereira Camara <luizmed@oi.com.br>, + * http://lists.cairographics.org/archives/cairo/2008-May/014054.html. + */ + +#include "cairo-test.h" + +static cairo_test_draw_function_t draw; + +cairo_test_t test = { + "degenerate-arc", + "Tests the behaviour of degenerate arcs", + 40, 40, + draw +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int n; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + + cairo_set_line_width (cr, 5); + cairo_set_source_rgb (cr, 0, 1, 0); + for (n = 0; n < 8; n++) { + double theta = n * 2 * M_PI / 8; + cairo_new_sub_path (cr); + cairo_arc (cr, 20, 20, 15, theta, theta); + cairo_close_path (cr); + } + cairo_stroke (cr); + + cairo_set_line_width (cr, 2); + cairo_set_source_rgb (cr, 0, 0, 1); + for (n = 0; n < 8; n++) { + double theta = n * 2 * M_PI / 8; + cairo_move_to (cr, 20, 20); + cairo_arc (cr, 20, 20, 15, theta, theta); + } + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_arc (cr, 20, 20, 2, 0, 2*M_PI); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +int +main (void) +{ + return cairo_test (&test); +} |