| /* |
| * Copyright © 2004 Red Hat, Inc. |
| * |
| * 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 |
| * Red Hat, Inc. not be used in advertising or publicity pertaining to |
| * distribution of the software without specific, written prior |
| * permission. Red Hat, Inc. makes no representations about the |
| * suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS |
| * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org> |
| */ |
| |
| /* Bug history |
| * |
| * 2004-11-04 Ned Konz <ned@squeakland.org> |
| * |
| * Reported bug on mailing list: |
| * |
| * From: Ned Konz <ned@squeakland.org> |
| * To: cairo@cairographics.org |
| * Date: Thu, 4 Nov 2004 09:49:38 -0800 |
| * Subject: [cairo] getting assertions [cairo_cache.c:143: _entry_destroy: |
| * Assertion `cache->used_memory > entry->memory' failed] |
| * |
| * The attached program dies on me with the assert |
| * |
| * $ ./testCairo |
| * testCairo: cairo_cache.c:143: _entry_destroy: Assertion `cache->used_memory > entry->memory' failed. |
| * |
| * 2004-11-04 Carl Worth <cworth@cworth.org> |
| * |
| * I trimmed down Ned's example to the folllowing test while still |
| * maintaining the assertion. |
| * |
| * Oh, actually, it looks like I may have triggered something |
| * slightly different: |
| * |
| * text_cache_crash: cairo_cache.c:422: _cairo_cache_lookup: Assertion `cache->max_memory >= (cache->used_memory + new_entry->memory)' failed. |
| * |
| * I'll have to go back and try the original test after I fix this. |
| * |
| * 2004-11-13 Carl Worth <cworth@cworth.org> |
| * |
| * Found the bug. cairo_gstate_select_font was noticing when the |
| * same font was selected twice in a row and was erroneously failing |
| * to free the old reference. Committed a fix and verified it also |
| * fixed the original test case. |
| */ |
| |
| #include "cairo-test.h" |
| |
| static cairo_test_status_t |
| draw (cairo_t *cr, int width, int height) |
| { |
| /* Once there was a bug that choked when selecting the same font twice. */ |
| cairo_select_font_face (cr, "sans", |
| CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD); |
| cairo_set_font_size (cr, 40.0); |
| |
| cairo_select_font_face (cr, "sans", |
| CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD); |
| cairo_set_font_size (cr, 40.0); |
| cairo_move_to (cr, 10, 50); |
| cairo_show_text (cr, "hello"); |
| |
| /* Then there was a bug that choked when selecting a font too big |
| * for the cache. */ |
| |
| cairo_set_font_size (cr, 500); |
| cairo_show_text (cr, "hello"); |
| |
| return CAIRO_TEST_SUCCESS; |
| } |
| |
| CAIRO_TEST (text_cache_crash, |
| "Test case for bug causing an assertion failure in _cairo_cache_lookup", |
| "text, stress", /* keywords */ |
| NULL, /* requirements */ |
| 0, 0, |
| NULL, draw) |