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test: Add degenerate-arcs

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A simple test to ensure that using degenerate-arcs such as when drawing
a rounded rectangle with radii=0 construct a proper path.
This commit is contained in:
Chris Wilson 2010-01-15 12:02:58 +00:00
parent a39075c88f
commit e22c02dbae
4 changed files with 59 additions and 0 deletions
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1
test/Makefile.am
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@ -336,6 +336,7 @@ REFERENCE_IMAGES = \
degenerate-arc.ps3.ref.png \
degenerate-arc.ref.png \
degenerate-arc.xlib.ref.png \
degenerate-arcs.ref.png \
degenerate-curve-to.ref.png \
degenerate-curve-to.ps.xfail.png \
degenerate-dash.ps.xfail.png \

1
test/Makefile.sources
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@ -56,6 +56,7 @@ test_sources = \
dash-state.c \
dash-zero-length.c \
degenerate-arc.c \
degenerate-arcs.c \
degenerate-curve-to.c \
degenerate-dash.c \
degenerate-path.c \

57
test/degenerate-arcs.c Normal file
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@ -0,0 +1,57 @@
/*
* Copyright 2010 Intel Corporation
*
* 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>
*/
#include "cairo-test.h"
#define WIDTH 20
#define HEIGHT 20
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_paint (cr);
cairo_set_source_rgb (cr, 0.3, 0.4, 0.5);
/* This should be equivalent to a simple rectangle, such as may be
* constructed for a rounded-rectangle with corner radii of 0...
*/
cairo_arc (cr, 5, 5, 0, M_PI, 3*M_PI/2);
cairo_arc (cr, 15, 5, 0, 3*M_PI/2, 2*M_PI);
cairo_arc (cr, 15, 15, 0, 0, M_PI/2);
cairo_arc (cr, 5, 15, 0, M_PI/2, M_PI);
cairo_fill (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (degenerate_arcs,
"Tests path construction using a series of degenerate (radius=0) arcs",
"arc, fill", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, draw)

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