3 * Copyright 2013 Google Inc.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * * Neither the name of Google Inc. nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
34 * This plain test program mimics the structure and contents of its
35 * ATF-based counterpart. It attempts to represent various test cases
36 * in different separate functions and just calls them all from main().
38 * In reality, plain test programs can be much simpler. All they have
39 * to do is return 0 on success and non-0 otherwise.
48 snprintf__two_formatters(void)
52 if (snprintf(buffer, sizeof(buffer), "%s, %s!", "Hello",
54 errx(EXIT_FAILURE, "snprintf with two formatters failed");
56 if (strcmp(buffer, "Hello, tests!") != 0)
57 errx(EXIT_FAILURE, "Bad formatting: got %s", buffer);
61 snprintf__overflow(void)
65 if (snprintf(buffer, sizeof(buffer), "0123456789abcdef") != 16)
66 errx(EXIT_FAILURE, "snprintf did not return the expected "
67 "number of characters");
69 if (strcmp(buffer, "012345678") != 0)
70 errx(EXIT_FAILURE, "Bad formatting: got %s", buffer);
74 fprintf__simple_string(void)
79 const char *contents = "This is a message\n";
81 file = fopen("test.txt", "w+");
82 if (fprintf(file, "%s", contents) <= 0)
83 err(EXIT_FAILURE, "fprintf failed to write to file");
85 length = fread(buffer, 1, sizeof(buffer) - 1, file);
86 if (length != strlen(contents))
87 err(EXIT_FAILURE, "fread failed");
88 buffer[length] = '\0';
91 if (strcmp(buffer, contents) != 0)
92 errx(EXIT_FAILURE, "Written and read data differ");
94 /* Of special note here is that we are NOT deleting the temporary
95 * files we created in this test. Kyua takes care of this cleanup
96 * automatically and tests can (and should) rely on this behavior. */
102 /* If you have read the printf_test.c counterpart in the atf/
103 * directory, you may think that the sequencing of tests below and
104 * the exposed behavior to the user is very similar. But you'd be
107 * There are two major differences with this and the ATF version.
108 * The first is that the code below has no provisions to detect
109 * failures in one test and continue running the other tests: the
110 * first failure causes the whole test program to exit. The second
111 * is that this particular main() has no arguments: without ATF,
112 * all test programs may expose a different command-line interface,
113 * and this is an issue for consistency purposes. */
114 snprintf__two_formatters();
115 snprintf__overflow();
116 fprintf__simple_string();