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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* Copyright (C) 2014 Intel Corporation. All rights reserved.
*/
#include <errno.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <shared/strbuf.h>
#include <shared/util.h>
#include "testsuite.h"
static const char *TEXT =
"this is a very long test that is longer than the size we initially se in the strbuf";
static int test_strbuf_pushchar(const struct test *t)
{
struct strbuf buf;
const char *result;
char *result1, *result2;
const char *c;
strbuf_init(&buf);
for (c = TEXT; *c != '\0'; c++)
strbuf_pushchar(&buf, *c);
result = strbuf_str(&buf);
assert_return(result == buf.bytes, EXIT_FAILURE);
assert_return(streq(result, TEXT), EXIT_FAILURE);
result1 = strdup(result);
result2 = strbuf_steal(&buf);
assert_return(streq(result1, result2), EXIT_FAILURE);
free(result1);
free(result2);
return 0;
}
DEFINE_TEST(test_strbuf_pushchar, .description = "test strbuf_{pushchar, str, steal}");
static int test_strbuf_pushchars(const struct test *t)
{
struct strbuf buf;
const char *result1;
char *saveptr = NULL, *str, *result2;
const char *c;
size_t lastwordlen = 0;
strbuf_init(&buf);
str = strdup(TEXT);
for (c = strtok_r(str, " ", &saveptr); c != NULL;
c = strtok_r(NULL, " ", &saveptr)) {
strbuf_pushchars(&buf, c);
strbuf_pushchar(&buf, ' ');
lastwordlen = strlen(c);
}
/*
* Replace the last space char, which also guarantees there's at least 1 char
* available for the '\0' added by strbuf_str() so result1 == buf.bytes should be
* true
*/
strbuf_popchar(&buf);
result1 = strbuf_str(&buf);
assert_return(result1 == buf.bytes, EXIT_FAILURE);
assert_return(streq(result1, TEXT), EXIT_FAILURE);
strbuf_popchars(&buf, lastwordlen);
result2 = strbuf_steal(&buf);
assert_return(!streq(TEXT, result2), EXIT_FAILURE);
assert_return(strncmp(TEXT, result2, strlen(TEXT) - lastwordlen) == 0,
EXIT_FAILURE);
assert_return(result2[strlen(TEXT) - lastwordlen] == '\0', EXIT_FAILURE);
free(str);
free(result2);
return 0;
}
DEFINE_TEST(test_strbuf_pushchars,
.description = "test strbuf_{pushchars, popchar, popchars}");
static int test_strbuf_steal(const struct test *t)
{
char *result;
{
_cleanup_strbuf_ struct strbuf buf;
strbuf_init(&buf);
strbuf_pushchars(&buf, TEXT);
result = strbuf_steal(&buf);
}
assert_return(streq(result, TEXT), EXIT_FAILURE);
free(result);
return 0;
}
DEFINE_TEST(test_strbuf_steal, .description = "test strbuf_steal with cleanup");
static int test_strbuf_with_stack(const struct test *t)
{
const char test[] = "test-something-small";
const char *stack_buf;
char *p;
DECLARE_STRBUF_WITH_STACK(buf, 256);
DECLARE_STRBUF_WITH_STACK(buf2, sizeof(test) + 1);
DECLARE_STRBUF_WITH_STACK(buf3, sizeof(test) + 1);
strbuf_pushchars(&buf, test);
assert_return(streq(test, strbuf_str(&buf)), EXIT_FAILURE);
p = strbuf_steal(&buf);
assert_return(streq(test, p), EXIT_FAILURE);
free(p);
strbuf_pushchars(&buf2, test);
assert_return(streq(test, strbuf_str(&buf2)), EXIT_FAILURE);
/* It fits on stack, but when we steal, we get a copy on heap */
p = strbuf_steal(&buf2);
assert_return(streq(test, p), EXIT_FAILURE);
free(p);
/*
* Check assumption about buffer being on stack vs heap is indeed valid.
* Not to be done in real code.
*/
strbuf_clear(&buf3);
stack_buf = buf3.bytes;
strbuf_pushchars(&buf3, test);
assert_return(stack_buf == buf3.bytes, EXIT_FAILURE);
assert_return(streq(test, strbuf_str(&buf3)), EXIT_FAILURE);
assert_return(stack_buf == buf3.bytes, EXIT_FAILURE);
strbuf_pushchars(&buf3, "-overflow");
assert_return(stack_buf != buf3.bytes, EXIT_FAILURE);
return 0;
}
DEFINE_TEST(test_strbuf_with_stack, .description = "test strbuf with stack");
static int test_strbuf_with_heap(const struct test *t)
{
DECLARE_STRBUF(heapbuf);
assert_return(heapbuf.bytes == NULL, EXIT_FAILURE);
assert_return(heapbuf.size == 0, EXIT_FAILURE);
assert_return(heapbuf.used == 0, EXIT_FAILURE);
strbuf_pushchars(&heapbuf, "-overflow");
assert_return(heapbuf.bytes != NULL, EXIT_FAILURE);
assert_return(heapbuf.size != 0, EXIT_FAILURE);
assert_return(heapbuf.used != 0, EXIT_FAILURE);
return 0;
}
DEFINE_TEST(test_strbuf_with_heap, .description = "test strbuf with heap only");
static int test_strbuf_reserve_extra(const struct test *t)
{
_cleanup_strbuf_ struct strbuf buf;
size_t size;
strbuf_init(&buf);
strbuf_reserve_extra(&buf, strlen(TEXT) + 1);
size = buf.size;
assert_return(size >= strlen(TEXT) + 1, EXIT_FAILURE);
strbuf_pushchars(&buf, TEXT);
strbuf_pushchar(&buf, '\0');
assert_return(size == buf.size, EXIT_FAILURE);
strbuf_clear(&buf);
strbuf_pushchars(&buf, TEXT);
assert_return(size == buf.size, EXIT_FAILURE);
return 0;
}
DEFINE_TEST(test_strbuf_reserve_extra, .description = "test strbuf_reserve_extra");
static int test_strbuf_pushmem(const struct test *t)
{
_cleanup_strbuf_ struct strbuf buf;
size_t size;
strbuf_init(&buf);
strbuf_pushmem(&buf, "", 0);
strbuf_reserve_extra(&buf, strlen(TEXT) + 1);
size = buf.size;
strbuf_pushmem(&buf, TEXT, strlen(TEXT) + 1);
assert_return(size == buf.size, EXIT_FAILURE);
assert_return(streq(TEXT, strbuf_str(&buf)), EXIT_FAILURE);
assert_return(size == buf.size, EXIT_FAILURE);
return 0;
}
DEFINE_TEST(test_strbuf_pushmem, .description = "test strbuf_reserve");
static int test_strbuf_used(const struct test *t)
{
_cleanup_strbuf_ struct strbuf buf;
strbuf_init(&buf);
assert_return(strbuf_used(&buf) == 0, EXIT_FAILURE);
strbuf_pushchars(&buf, TEXT);
assert_return(strbuf_used(&buf) == strlen(TEXT), EXIT_FAILURE);
strbuf_reserve_extra(&buf, 1);
assert_return(strbuf_used(&buf) == strlen(TEXT), EXIT_FAILURE);
assert_return(streq(TEXT, strbuf_str(&buf)), EXIT_FAILURE);
assert_return(strbuf_used(&buf) == strlen(TEXT), EXIT_FAILURE);
strbuf_pushchar(&buf, '\0');
assert_return(streq(TEXT, strbuf_str(&buf)), EXIT_FAILURE);
assert_return(strbuf_used(&buf) == strlen(TEXT) + 1, EXIT_FAILURE);
return 0;
}
DEFINE_TEST(test_strbuf_used, .description = "test strbuf_used");
static int test_strbuf_shrink_to(const struct test *t)
{
_cleanup_strbuf_ struct strbuf buf;
strbuf_init(&buf);
strbuf_shrink_to(&buf, 0);
assert_return(strbuf_used(&buf) == 0, EXIT_FAILURE);
strbuf_pushchars(&buf, TEXT);
strbuf_shrink_to(&buf, strlen(TEXT) - 1);
assert_return(strbuf_used(&buf) == strlen(TEXT) - 1, EXIT_FAILURE);
return 0;
}
DEFINE_TEST(test_strbuf_shrink_to, .description = "test strbuf_shrink_to");
static int xfail_strbuf_shrink_to(const struct test *t)
{
_cleanup_strbuf_ struct strbuf buf;
strbuf_init(&buf);
strbuf_pushchar(&buf, '/');
/* This should crash on assert */
strbuf_shrink_to(&buf, 2);
return 0;
}
DEFINE_TEST(xfail_strbuf_shrink_to, .description = "xfail strbuf_shrink_to",
.expected_fail = true);
TESTSUITE_MAIN();
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