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#include <stdio.h>
#include <string.h>
#include "common.h"
#include "../bitstream.h"
static void test_null(void)
{
BitStream *bstream;
testStart("Empty stream");
bstream = BitStream_new();
assert_zero(BitStream_size(bstream), "Size of empty BitStream is not 0.\n");
assert_null(BitStream_toByte(bstream), "BitStream_toByte returned non-NULL.\n");
assert_nothing(BitStream_free(NULL), "Checking BitStream_free(NULL).\n");
testFinish();
BitStream_free(bstream);
}
static void test_num(void)
{
BitStream *bstream;
unsigned int data = 0x13579bdf;
char correct[] = "0010011010101111001101111011111";
testStart("New from num");
bstream = BitStream_new();
BitStream_appendNum(bstream, 31, data);
testEnd(cmpBin(correct, bstream));
BitStream_free(bstream);
}
static void test_bytes(void)
{
BitStream *bstream;
unsigned char data[1] = {0x3a};
char correct[] = "00111010";
testStart("New from bytes");
bstream = BitStream_new();
BitStream_appendBytes(bstream, 1, data);
testEnd(cmpBin(correct, bstream));
BitStream_free(bstream);
}
static void test_appendNum(void)
{
BitStream *bstream;
char correct[] = "10001010 11111111 11111111 00010010001101000101011001111000";
testStart("Append Num");
bstream = BitStream_new();
BitStream_appendNum(bstream, 8, 0x0000008a);
assert_zero(ncmpBin(correct, bstream, 8), "Internal data is incorrect.\n");
BitStream_appendNum(bstream, 16, 0x0000ffff);
assert_zero(ncmpBin(correct, bstream, 24), "Internal data is incorrect.\n");
BitStream_appendNum(bstream, 32, 0x12345678);
assert_zero(cmpBin(correct, bstream), "Internal data is incorrect.\n");
testFinish();
BitStream_free(bstream);
}
static void test_appendBytes(void)
{
BitStream *bstream;
unsigned char data[8];
char correct[] = "10001010111111111111111100010010001101000101011001111000";
testStart("Append Bytes");
bstream = BitStream_new();
data[0] = 0x8a;
BitStream_appendBytes(bstream, 1, data);
assert_zero(ncmpBin(correct, bstream, 8), "Internal data is incorrect.");
data[0] = 0xff;
data[1] = 0xff;
BitStream_appendBytes(bstream, 2, data);
assert_zero(ncmpBin(correct, bstream, 24), "Internal data is incorrect.\n");
data[0] = 0x12;
data[1] = 0x34;
data[2] = 0x56;
data[3] = 0x78;
BitStream_appendBytes(bstream, 4, data);
assert_zero(cmpBin(correct, bstream), "Internal data is incorrect.\n");
testFinish();
BitStream_free(bstream);
}
static void test_toByte(void)
{
BitStream *bstream;
unsigned char correct[] = {
0x8a, 0xff, 0xff, 0x12, 0x34, 0x56, 0x78
};
unsigned char *result;
testStart("Convert to a byte array");
bstream = BitStream_new();
BitStream_appendBytes(bstream, 1, &correct[0]);
BitStream_appendBytes(bstream, 2, &correct[1]);
BitStream_appendBytes(bstream, 4, &correct[3]);
result = BitStream_toByte(bstream);
testEnd(memcmp(correct, result, 7));
BitStream_free(bstream);
free(result);
}
static void test_toByte_4bitpadding(void)
{
BitStream *bstream;
unsigned char *result;
testStart("Convert to a byte array");
bstream = BitStream_new();
BitStream_appendNum(bstream, 4, 0xb);
result = BitStream_toByte(bstream);
assert_equal(result[0], 0xb0, "incorrect paddings\n");
BitStream_free(bstream);
free(result);
bstream = BitStream_new();
BitStream_appendNum(bstream, 12, 0x335);
result = BitStream_toByte(bstream);
assert_equal(result[0], 0x33, "incorrect paddings\n");
assert_equal(result[1], 0x50, "incorrect paddings\n");
BitStream_free(bstream);
free(result);
testFinish();
}
static void test_size(void)
{
BitStream *bstream;
testStart("size check");
bstream = BitStream_new();
assert_equal(BitStream_size(bstream), 0, "Initialized BitStream is not 0 length");
BitStream_appendNum(bstream, 1, 0);
assert_equal(BitStream_size(bstream), 1, "Size incorrect. (first append)");
BitStream_appendNum(bstream, 2, 0);
assert_equal(BitStream_size(bstream), 3, "Size incorrect. (second append)");
testFinish();
BitStream_free(bstream);
}
static void test_append(void)
{
BitStream *bs1, *bs2;
char c1[] = "00";
char c2[] = "0011";
char c3[] = "01111111111111111";
char c4[] = "001101111111111111111";
char c5[] = "0011011111111111111111111111111111";
int ret;
testStart("Append two BitStreams");
bs1 = BitStream_new();
bs2 = BitStream_new();
ret = BitStream_appendNum(bs1, 1, 0);
ret = BitStream_appendNum(bs2, 1, 0);
ret = BitStream_append(bs1, bs2);
assert_zero(ret, "Failed to append.");
assert_zero(cmpBin(c1, bs1), "Internal data is incorrect.");
ret = BitStream_appendNum(bs1, 2, 3);
assert_zero(ret, "Failed to append.");
assert_zero(cmpBin(c2, bs1), "Internal data is incorrect.");
ret = BitStream_appendNum(bs2, 16, 65535);
assert_zero(ret, "Failed to append.");
assert_zero(cmpBin(c3, bs2), "Internal data is incorrect.");
ret = BitStream_append(bs1, bs2);
assert_zero(ret, "Failed to append.");
assert_zero(cmpBin(c4, bs1), "Internal data is incorrect.");
ret = BitStream_appendNum(bs1, 13, 16383);
assert_zero(ret, "Failed to append.");
assert_zero(cmpBin(c5, bs1), "Internal data is incorrect.");
testFinish();
BitStream_free(bs1);
BitStream_free(bs2);
}
static void test_newWithBits(void)
{
BitStream *bstream;
unsigned char data[4] = {0, 1, 0, 1};
testStart("New with bits");
bstream = BitStream_newWithBits(4, data);
assert_equal(bstream->length, 4, "Internal bit length is incorrect.\n");
assert_equal(bstream->datasize, 4, "Internal buffer size is incorrect.\n");
assert_zero(cmpBin("0101", bstream), "Internal data is incorrect.\n");
testFinish();
BitStream_free(bstream);
}
static void test_newWithBits_size0(void)
{
BitStream *bstream;
testStart("New with bits (size = 0)");
bstream = BitStream_newWithBits(0, NULL);
assert_equal(bstream->length, 0, "Internal bit length is incorrect.\n");
assert_nonzero(bstream->datasize, "Internal buffer size is incorrect.\n");
assert_nonnull(bstream->data, "Internal buffer not allocated.\n");
testFinish();
BitStream_free(bstream);
}
int main()
{
int tests = 11;
testInit(tests);
test_null();
test_num();
test_bytes();
test_appendNum();
test_appendBytes();
test_toByte();
test_toByte_4bitpadding();
test_size();
test_append();
test_newWithBits();
test_newWithBits_size0();
testReport(tests);
return 0;
}
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