1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/*
* Copyright © 2005 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>
*/
#include "cairo-test.h"
#include <stddef.h>
/* Test to verify fixes for the following similar bugs:
*
* https://bugs.freedesktop.org/show_bug.cgi?id=4088
* https://bugs.freedesktop.org/show_bug.cgi?id=3915
* https://bugs.freedesktop.org/show_bug.cgi?id=9906
*/
static cairo_test_draw_function_t draw;
static const cairo_test_t test = {
"nil-surface",
"Test that nil surfaces do not make cairo crash.",
1, 1,
draw
};
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const cairo_test_context_t *ctx = cairo_test_get_context (cr);
cairo_surface_t *surface;
cairo_pattern_t *pattern;
cairo_t *cr2;
/*
* 1. Test file-not-found from surface->pattern->cairo_t
*/
/* Make a custom context to not interfere with the one passed in. */
cr2 = cairo_create (cairo_get_target (cr));
/* First, let's make a nil surface. */
surface = cairo_image_surface_create_from_png ("___THIS_FILE_DOES_NOT_EXIST___");
/* Let the error propagate into a nil pattern. */
pattern = cairo_pattern_create_for_surface (surface);
/* Then let it propagate into the cairo_t. */
cairo_set_source (cr2, pattern);
cairo_paint (cr2);
cairo_pattern_destroy (pattern);
cairo_surface_destroy (surface);
/* Check that the error made it all that way. */
if (cairo_status (cr2) != CAIRO_STATUS_FILE_NOT_FOUND) {
cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n",
cairo_status_to_string (cairo_status (cr2)),
cairo_status_to_string (CAIRO_STATUS_FILE_NOT_FOUND));
cairo_destroy (cr2);
return CAIRO_TEST_FAILURE;
}
cairo_destroy (cr2);
/*
* 2. Test NULL pointer pattern->cairo_t
*/
cr2 = cairo_create (cairo_get_target (cr));
/* First, trigger the NULL pointer status. */
pattern = cairo_pattern_create_for_surface (NULL);
/* Then let it propagate into the cairo_t. */
cairo_set_source (cr2, pattern);
cairo_paint (cr2);
cairo_pattern_destroy (pattern);
/* Check that the error made it all that way. */
if (cairo_status (cr2) != CAIRO_STATUS_NULL_POINTER) {
cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n",
cairo_status_to_string (cairo_status (cr2)),
cairo_status_to_string (CAIRO_STATUS_NULL_POINTER));
cairo_destroy (cr2);
return CAIRO_TEST_FAILURE;
}
cairo_destroy (cr2);
/*
* 3. Test that cairo_surface_finish can accept NULL or a nil
* surface without crashing.
*/
cairo_surface_finish (NULL);
surface = cairo_image_surface_create_from_png ("___THIS_FILE_DOES_NOT_EXIST___");
cairo_surface_finish (surface);
cairo_surface_destroy (surface);
/*
* 4. OK, we're straying from the original name, but it's still a
* similar kind of testing of error paths. Here we're making sure
* we can still call a cairo_get_* function after triggering an
* INVALID_RESTORE error.
*/
cr2 = cairo_create (cairo_get_target (cr));
/* Trigger invalid restore. */
cairo_restore (cr2);
if (cairo_status (cr2) != CAIRO_STATUS_INVALID_RESTORE) {
cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n",
cairo_status_to_string (cairo_status (cr2)),
cairo_status_to_string (CAIRO_STATUS_INVALID_RESTORE));
cairo_destroy (cr2);
return CAIRO_TEST_FAILURE;
}
/* Test that we can still call cairo_get_fill_rule without crashing. */
cairo_get_fill_rule (cr2);
cairo_destroy (cr2);
/*
* 5. Create a cairo_t for the NULL surface.
*/
cr2 = cairo_create (NULL);
if (cairo_status (cr2) != CAIRO_STATUS_NULL_POINTER) {
cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n",
cairo_status_to_string (cairo_status (cr2)),
cairo_status_to_string (CAIRO_STATUS_NULL_POINTER));
cairo_destroy (cr2);
return CAIRO_TEST_FAILURE;
}
/* Test that get_target returns something valid */
if (cairo_get_target (cr2) == NULL) {
cairo_test_log (ctx, "Error: cairo_get_target() returned NULL\n");
cairo_destroy (cr2);
return CAIRO_TEST_FAILURE;
}
/* Test that push_group doesn't crash */
cairo_push_group (cr2);
cairo_stroke (cr2);
cairo_pop_group (cr2);
cairo_destroy (cr2);
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
return cairo_test (&test);
}
|
