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/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
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/*
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 * Copyright 2010 Andrea Canciani
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 *
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 * Permission is hereby granted, free of charge, to any person
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 * obtaining a copy of this software and associated documentation
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 * files (the "Software"), to deal in the Software without
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 * restriction, including without limitation the rights to use, copy,
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 * modify, merge, publish, distribute, sublicense, and/or sell copies
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 * of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be
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 * included in all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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 * SOFTWARE.
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 *
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 * Author: Andrea Canciani <ranma42@gmail.com>
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 */
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#include "cairo-test.h"

            

        

            

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#include <float.h>

            

        

            

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#define SIZE 8

            

        

            

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/*

            

        

            

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  cairo_arc can hang in an infinite loop if given huge (so big that

            

        

            

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  adding/subtracting 4*M_PI to them doesn't change the value because

            

        

            

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  of floating point rounding).

            

        

            

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  The purpose of this test is to check that cairo doesn't hang or crash.

            

        

            

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*/

            

        

            

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static cairo_test_status_t

            

        

            

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draw (cairo_t *cr, int width, int height)

            

        

            

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{

            

        

            

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    cairo_set_source_rgb (cr, 1, 1, 1);

            

        

            

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    cairo_paint (cr);

            

        

            

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    /* Check if the code that guarantees start <= end hangs */

            

        

            

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    cairo_arc (cr, 0, 0, 1, 1024 / DBL_EPSILON * M_PI, 0);

            

        

            

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    /* Check if the code that handles huge angles hangs */

            

        

            

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    cairo_arc (cr, 0, 0, 1, 0, 1024 / DBL_EPSILON * M_PI);

            

        

            

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    return CAIRO_TEST_SUCCESS;

            

        

            

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}

            

        

            

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CAIRO_TEST (arc_infinite_loop,

            

        

            

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	    "Test cairo_arc with huge angles",

            

        

            

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	    "arc", /* keywords */

            

        

            

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	    NULL, /* requirements */

            

        

            

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	    SIZE, SIZE,

            

        

            

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	    NULL, draw)