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*
* Copyright 2013 Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Google Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/*
* INTRODUCTION
*
* This plain test program mimics the structure and contents of its
* ATF-based counterpart. It attempts to represent various test cases
* in different separate functions and just calls them all from main().
*
* In reality, plain test programs can be much simpler. All they have
* to do is return 0 on success and non-0 otherwise.
*/
#include <err.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static int failed;
static int test_num = 1;
#define TEST_COUNT 7
static void
fail(const char *fmt, ...)
{
char *msg;
va_list ap;
failed = 1;
va_start(ap, fmt);
if (vasprintf(&msg, fmt, ap) == -1)
err(1, NULL);
va_end(ap);
printf("not ok %d - %s\n", test_num, msg);
free(msg);
test_num++;
}
static void
pass(void)
{
printf("ok %d\n", test_num);
test_num++;
}
static void
skip(int skip_num)
{
int i;
for (i = 0; i < skip_num; i++) {
printf("not ok %d # SKIP\n", test_num);
test_num++;
}
}
static void
snprintf__two_formatters(void)
{
char buffer[128];
if (snprintf(buffer, sizeof(buffer), "%s, %s!", "Hello",
"tests") <= 0) {
fail("snprintf with two formatters failed");
skip(1);
} else {
pass();
if (strcmp(buffer, "Hello, tests!") != 0)
fail("Bad formatting: got %s", buffer);
else
pass();
}
}
static void
snprintf__overflow(void)
{
char buffer[10];
if (snprintf(buffer, sizeof(buffer), "0123456789abcdef") != 16) {
fail("snprintf did not return the expected "
"number of characters");
skip(1);
return;
}
pass();
if (strcmp(buffer, "012345678") != 0)
fail("Bad formatting: got %s", buffer);
else
pass();
}
static void
fprintf__simple_string(void)
{
FILE *file;
char buffer[128];
size_t length;
const char *contents = "This is a message\n";
file = fopen("test.txt", "w+");
if (fprintf(file, "%s", contents) <= 0) {
fail("fprintf failed to write to file");
skip(2);
return;
}
pass();
rewind(file);
length = fread(buffer, 1, sizeof(buffer) - 1, file);
if (length != strlen(contents)) {
fail("fread failed");
skip(1);
return;
}
pass();
buffer[length] = '\0';
fclose(file);
if (strcmp(buffer, contents) != 0)
fail("Written and read data differ");
else
pass();
/* Of special note here is that we are NOT deleting the temporary
* files we created in this test. Kyua takes care of this cleanup
* automatically and tests can (and should) rely on this behavior. */
}
int
main(void)
{
/* If you have read the printf_test.c counterpart in the atf/
* directory, you may think that the sequencing of tests below and
* the exposed behavior to the user is very similar. But you'd be
* wrong.
*
* There are two major differences with this and the ATF version.
* The first is that the code below has no provisions to detect
* failures in one test and continue running the other tests: the
* first failure causes the whole test program to exit. The second
* is that this particular main() has no arguments: without ATF,
* all test programs may expose a different command-line interface,
* and this is an issue for consistency purposes. */
printf("1..%d\n", TEST_COUNT);
snprintf__two_formatters();
snprintf__overflow();
fprintf__simple_string();
return (failed);
}
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