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/* -*- c-file-style: "gnu" -*- */
#include <cutter.h>
#include <glib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#define DATA_SIZE 1024
#define BLOCK_SIZE 32
#define NUM_BLOCKS 32
static guchar data[DATA_SIZE];
static guchar *data2 = NULL;
static gchar *text = NULL;
void test_full (void);
void test_incremental_with_line_breaks1 (void);
void test_incremental_with_line_breaks2 (void);
void test_incremental_with_line_breaks3 (void);
void test_incremental_no_line_breaks1 (void);
void test_incremental_no_line_breaks2 (void);
void test_incremental_no_line_breaks3 (void);
void
setup (void)
{
int i;
for (i = 0; i < DATA_SIZE; i++)
data[i] = (guchar)i;
data2 = NULL;
text = NULL;
}
void
teardown (void)
{
g_free (data2);
g_free (text);
}
static void
test_incremental (gboolean line_break,
gint length,
gsize *encoded_length,
gsize *decoded_length)
{
char *p;
gsize len, max, input_len, block_size;
int state, save;
guint decoder_save;
data2 = g_malloc (length);
text = g_malloc (length * 2);
len = 0;
state = 0;
save = 0;
input_len = 0;
while (input_len < length)
{
block_size = MIN (BLOCK_SIZE, length - input_len);
len += g_base64_encode_step (data + input_len, block_size,
line_break, text + len, &state, &save);
input_len += block_size;
}
len += g_base64_encode_close (line_break, text + len, &state, &save);
*encoded_length = len;
if (line_break)
max = length * 4 / 3 + length * 4 / (3 * 72) + 7;
else
max = length * 4 / 3 + 6;
*decoded_length = 0;
state = 0;
decoder_save = 0;
p = text;
while (len > 0)
{
int chunk_len = MIN (BLOCK_SIZE, len);
*decoded_length += g_base64_decode_step (p,
chunk_len,
data2 + *decoded_length,
&state, &decoder_save);
p += chunk_len;
len -= chunk_len;
}
}
static void
test_incremental_with_line_breaks_for_length (gsize length)
{
gsize encoded_length, decoded_length, max;
max = length * 4 / 3 + length * 4 / (3 * 72) + 7;
test_incremental (FALSE, length,
&encoded_length, &decoded_length);
cut_assert (encoded_length <= max,
cut_message ("Too long encoded length: got "
"%" G_GSIZE_FORMAT ", expected max "
"%" G_GSIZE_FORMAT,
encoded_length, max));
cut_assert_equal_memory (data, length, data2, decoded_length);
}
static void
test_incremental_no_line_breaks_for_length (gsize length)
{
gsize encoded_length, decoded_length, max;
max = length * 4 / 3 + 6;
test_incremental (FALSE, length,
&encoded_length, &decoded_length);
cut_assert (encoded_length <= max,
cut_message ("Too long encoded length: got "
"%" G_GSIZE_FORMAT ", expected max "
"%" G_GSIZE_FORMAT,
encoded_length, max));
cut_assert_equal_memory (data, length, data2, decoded_length);
}
void
test_incremental_no_line_breaks1 (void)
{
test_incremental_no_line_breaks_for_length (DATA_SIZE);
}
void
test_incremental_no_line_breaks2 (void)
{
test_incremental_no_line_breaks_for_length (DATA_SIZE - 1);
}
void
test_incremental_no_line_breaks3 (void)
{
test_incremental_no_line_breaks_for_length (DATA_SIZE - 2);
}
void
test_incremental_with_line_breaks1 (void)
{
test_incremental_with_line_breaks_for_length (DATA_SIZE);
}
void
test_incremental_with_line_breaks2 (void)
{
test_incremental_with_line_breaks_for_length (DATA_SIZE - 1);
}
void
test_incremental_with_line_breaks3 (void)
{
test_incremental_with_line_breaks_for_length (DATA_SIZE - 2);
}
void
test_full (void)
{
gsize len;
text = g_base64_encode (data, DATA_SIZE);
data2 = g_base64_decode (text, &len);
cut_assert_equal_memory (data, DATA_SIZE, data2, len);
}
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