diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/create-from-broken-png-stream.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/create-from-broken-png-stream.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/create-from-broken-png-stream.c b/libs/cairo-1.16.0/test/create-from-broken-png-stream.c new file mode 100644 index 0000000..7c02a26 --- /dev/null +++ b/libs/cairo-1.16.0/test/create-from-broken-png-stream.c @@ -0,0 +1,87 @@ +/* + * Copyright © 2017 Uli Schlachter + * + * 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: Uli Schlachter <psychon@znc.in> + */ + +#include "cairo-test.h" + +#include <stdlib.h> + +static const unsigned char broken_png_data[] = { + 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, + 0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x02, + 0x08, 0x02, 0x00, 0x00, 0x00, 0xfd, 0xd4, 0x9a, 0xff, 0x00, 0x00, 0x00, +}; +static const size_t broken_png_data_length + = sizeof(broken_png_data) / sizeof(broken_png_data[0]); + +static cairo_status_t +read_png_from_data (void *closure, unsigned char *data, unsigned int length) +{ + size_t *offset = closure; + size_t remaining = broken_png_data_length - *offset; + + if (remaining < length) + return CAIRO_STATUS_READ_ERROR; + + memcpy (data, &broken_png_data[*offset], length); + *offset += length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_status_t status; + cairo_status_t expected; + size_t offset = 0; + + surface = cairo_image_surface_create_from_png_stream (read_png_from_data, + &offset); + + /* XXX: The actual error is CAIRO_STATUS_PNG_ERROR, but + * _cairo_surface_create_in_error() does not support that. + */ + expected = CAIRO_STATUS_NO_MEMORY; + status = cairo_surface_status (surface); + cairo_surface_destroy (surface); + if (status != CAIRO_STATUS_NO_MEMORY) { + cairo_test_log (ctx, + "Error: expected error %s, but got %s\n", + cairo_status_to_string (expected), + cairo_status_to_string (status)); + + return CAIRO_TEST_FAILURE; + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (create_from_broken_png_stream, + "Tests the creation of a PNG from malformed data", + "png", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) |