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+/*
+ * 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, CAIRO_TEST_FONT_FAMILY " Sans",
+ CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
+ cairo_set_font_size (cr, 40.0);
+
+ cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " 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)