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#include <assert.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include "debug.h"
#include "printbuf.h"
static void test_basic_printbuf_memset(void);
static void test_printbuf_memset_length(void);
#ifndef __func__
/* VC++ compat */
#define __func__ __FUNCTION__
#endif
static void test_basic_printbuf_memset()
{
struct printbuf *pb;
printf("%s: starting test\n", __func__);
pb = printbuf_new();
sprintbuf(pb, "blue:%d", 1);
printbuf_memset(pb, -1, 'x', 52);
printf("Buffer contents:%.*s\n", printbuf_length(pb), pb->buf);
printbuf_free(pb);
printf("%s: end test\n", __func__);
}
static void test_printbuf_memset_length()
{
struct printbuf *pb;
printf("%s: starting test\n", __func__);
pb = printbuf_new();
printbuf_memset(pb, -1, ' ', 0);
printbuf_memset(pb, -1, ' ', 0);
printbuf_memset(pb, -1, ' ', 0);
printbuf_memset(pb, -1, ' ', 0);
printbuf_memset(pb, -1, ' ', 0);
printf("Buffer length: %d\n", printbuf_length(pb));
printbuf_memset(pb, -1, ' ', 2);
printbuf_memset(pb, -1, ' ', 4);
printbuf_memset(pb, -1, ' ', 6);
printf("Buffer length: %d\n", printbuf_length(pb));
printbuf_memset(pb, -1, ' ', 6);
printf("Buffer length: %d\n", printbuf_length(pb));
printbuf_memset(pb, -1, ' ', 8);
printbuf_memset(pb, -1, ' ', 10);
printbuf_memset(pb, -1, ' ', 10);
printbuf_memset(pb, -1, ' ', 10);
printbuf_memset(pb, -1, ' ', 20);
printf("Buffer length: %d\n", printbuf_length(pb));
// No length change should occur
printbuf_memset(pb, 0, 'x', 30);
printf("Buffer length: %d\n", printbuf_length(pb));
// This should extend it by one.
printbuf_memset(pb, 0, 'x', printbuf_length(pb) + 1);
printf("Buffer length: %d\n", printbuf_length(pb));
printbuf_free(pb);
printf("%s: end test\n", __func__);
}
static void test_printbuf_memappend(int *before_resize);
static void test_printbuf_memappend(int *before_resize)
{
struct printbuf *pb;
int initial_size;
printf("%s: starting test\n", __func__);
pb = printbuf_new();
printf("Buffer length: %d\n", printbuf_length(pb));
initial_size = pb->size;
while(pb->size == initial_size)
{
printbuf_memappend_fast(pb, "x", 1);
}
*before_resize = printbuf_length(pb) - 1;
printf("Appended %d bytes for resize: [%s]\n", *before_resize + 1, pb->buf);
printbuf_reset(pb);
printbuf_memappend_fast(pb, "bluexyz123", 3);
printf("Partial append: %d, [%s]\n", printbuf_length(pb), pb->buf);
char with_nulls[] = { 'a', 'b', '\0', 'c' };
printbuf_reset(pb);
printbuf_memappend_fast(pb, with_nulls, (int)sizeof(with_nulls));
printf("With embedded \\0 character: %d, [%s]\n", printbuf_length(pb), pb->buf);
printbuf_free(pb);
pb = printbuf_new();
char *data = malloc(*before_resize);
memset(data, 'X', *before_resize);
printbuf_memappend_fast(pb, data, *before_resize);
printf("Append to just before resize: %d, [%s]\n", printbuf_length(pb), pb->buf);
free(data);
printbuf_free(pb);
pb = printbuf_new();
data = malloc(*before_resize + 1);
memset(data, 'X', *before_resize + 1);
printbuf_memappend_fast(pb, data, *before_resize + 1);
printf("Append to just after resize: %d, [%s]\n", printbuf_length(pb), pb->buf);
free(data);
printbuf_free(pb);
#define SA_TEST_STR "XXXXXXXXXXXXXXXX"
pb = printbuf_new();
printbuf_strappend(pb, SA_TEST_STR);
printf("Buffer size after printbuf_strappend(): %d, [%s]\n", printbuf_length(pb), pb->buf);
printbuf_free(pb);
#undef SA_TEST_STR
printf("%s: end test\n", __func__);
}
static void test_sprintbuf(int before_resize);
static void test_sprintbuf(int before_resize)
{
struct printbuf *pb;
const char *max_char = "if string is greater than stack buffer, then use dynamic string"
" with vasprintf. Note: some implementation of vsnprintf return -1 "
" if output is truncated whereas some return the number of bytes that "
" would have been written - this code handles both cases.";
printf("%s: starting test\n", __func__);
pb = printbuf_new();
printf("Buffer length: %d\n", printbuf_length(pb));
char *data = malloc(before_resize + 1 + 1);
memset(data, 'X', before_resize + 1 + 1);
data[before_resize + 1] = '\0';
sprintbuf(pb, "%s", data);
free(data);
printf("sprintbuf to just after resize(%d+1): %d, [%s], strlen(buf)=%d\n", before_resize, printbuf_length(pb), pb->buf, (int)strlen(pb->buf));
printbuf_reset(pb);
sprintbuf(pb, "plain");
printf("%d, [%s]\n", printbuf_length(pb), pb->buf);
sprintbuf(pb, "%d", 1);
printf("%d, [%s]\n", printbuf_length(pb), pb->buf);
sprintbuf(pb, "%d", INT_MAX);
printf("%d, [%s]\n", printbuf_length(pb), pb->buf);
sprintbuf(pb, "%d", INT_MIN);
printf("%d, [%s]\n", printbuf_length(pb), pb->buf);
sprintbuf(pb, "%s", "%s");
printf("%d, [%s]\n", printbuf_length(pb), pb->buf);
sprintbuf(pb, max_char);
printf("%d, [%s]\n", printbuf_length(pb), pb->buf);
printbuf_free(pb);
printf("%s: end test\n", __func__);
}
int main(int argc, char **argv)
{
int before_resize = 0;
MC_SET_DEBUG(1);
test_basic_printbuf_memset();
printf("========================================\n");
test_printbuf_memset_length();
printf("========================================\n");
test_printbuf_memappend(&before_resize);
printf("========================================\n");
test_sprintbuf(before_resize);
printf("========================================\n");
return 0;
}
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