kc3-lang/libqrencode/tests/test_bitstream.c

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• Hash : 5b9d4622
  Author :
  Date : 2006-11-06T09:25:34
  

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• tests/test_bitstream.c

• #include <stdio.h>
  #include <string.h>
  #include "common.h"
  #include "../bitstream.h"
  
  void test_1bitStream(void)
  {
  	unsigned int data;
  	BitStream *bstream;
  	int i, flag;
  
  	testStart("1 bit stream");
  	bstream = BitStream_new(128);
  	data = 1;
  	for(i=0; i<128; i++) {
  		BitStream_append(bstream,  1, (unsigned char *)&data);
  	}
  
  	flag = 0;
  	for(i=0; i<16; i++) {
  		printf("%02x", bstream->data[i]);
  		if(bstream->data[i] != 0xff)
  			flag++;
  	}
  	printf("\n");
  
  	BitStream_free(bstream);
  
  	testEnd(flag);
  }
  
  void test_8nbitsStream(void)
  {
  	unsigned int data;
  	BitStream *bstream;
  	unsigned char correct[7];
  
  	testStart("8n bit stream");
  	bstream = BitStream_new(56);
  	data = 0x8a;
  	correct[0] = 0x8a;
  	BitStream_append(bstream,  8, (unsigned char *)&data);
  
  	data = 0xffff;
  	correct[1] = 0xff;
  	correct[2] = 0xff;
  	BitStream_append(bstream, 16, (unsigned char *)&data);
  
  	data = 0x12345678;
  	correct[3] = 0x78;
  	correct[4] = 0x56;
  	correct[5] = 0x34;
  	correct[6] = 0x12;
  	BitStream_append(bstream, 32, (unsigned char *)&data);
  
  	testEnd(memcmp(correct, bstream->data, 7));
  
  	BitStream_free(bstream);
  }
  
  void test_varStream(void)
  {
  	unsigned int data;
  	BitStream *bstream;
  	int flag;
  	unsigned char correct[7];
  	int i;
  
  	testStart("Various bit stream");
  	bstream = BitStream_new(54);
  	data = 0x7f;
  	correct[0] = 0x7f;
  	BitStream_append(bstream, 7, (unsigned char *)&data);
  
  	data = 0x0555;
  	correct[0] |= 0x80;
  	correct[1] = (0x55>>1) | (0x55<<7);
  	correct[2] = 0x05>>1;
  	BitStream_append(bstream, 14, (unsigned char *)&data);
  
  	data = 0x12345678;
  	correct[2] |= 0x78 << 5;
  	correct[3] = (0x78 >> 3) | (0x56 << 5);
  	correct[4] = (0x56 >> 3) | (0x34 << 5);
  	correct[5] = (0x34 >> 3) | (0x12 << 5);
  	correct[6] = 0x12 >> 3;
  	BitStream_append(bstream, 29, (unsigned char *)&data);
  
  	data = 0xff;
  	correct[6] |= (0xff & 0x0f) << 2;
  	BitStream_append(bstream, 4, (unsigned char *)&data);
  
  	for(i=0; i<7; i++) {
  		printf("%02x", correct[i]);
  	}
  	printf("\n");
  	for(i=0; i<7; i++) {
  		printf("%02x", bstream->data[i]);
  	}
  	printf("\n");
  
  	flag = memcmp(correct, bstream->data, 6);
  	flag |= (bstream->data[6] & 0x3f) != (correct[6] & 0x3f);
  
  	BitStream_free(bstream);
  
  	testEnd(flag);
  }
  
  void test_bitStreamAppend(void)
  {
  	unsigned int data;
  	BitStream *bstream, *bs1, *bs2, *bs3, *bs4;
  	int flag;
  	unsigned char correct[7];
  	int i;
  
  	testStart("Various bit stream");
  	bstream = BitStream_new(54);
  
  	bs1 = BitStream_new(7);
  	data = 0x7f;
  	correct[0] = 0x7f;
  	BitStream_append(bs1, 7, (unsigned char *)&data);
  
  	bs2 = BitStream_new(14);
  	data = 0x0555;
  	correct[0] |= 0x80;
  	correct[1] = (0x55>>1) | (0x55<<7);
  	correct[2] = 0x05>>1;
  	BitStream_append(bs2, 14, (unsigned char *)&data);
  
  	bs3 = BitStream_new(29);
  	data = 0x12345678;
  	correct[2] |= 0x78 << 5;
  	correct[3] = (0x78 >> 3) | (0x56 << 5);
  	correct[4] = (0x56 >> 3) | (0x34 << 5);
  	correct[5] = (0x34 >> 3) | (0x12 << 5);
  	correct[6] = 0x12 >> 3;
  	BitStream_append(bs3, 29, (unsigned char *)&data);
  
  	bs4 = BitStream_new(4);
  	data = 0xff;
  	correct[6] |= (0xff & 0x0f) << 2;
  	BitStream_append(bs4, 4, (unsigned char *)&data);
  
  	BitStream_appendBitStream(bstream, bs1);
  	BitStream_appendBitStream(bstream, bs2);
  	BitStream_appendBitStream(bstream, bs3);
  	BitStream_appendBitStream(bstream, bs4);
  
  	for(i=0; i<7; i++) {
  		printf("%02x", correct[i]);
  	}
  	printf("\n");
  	for(i=0; i<7; i++) {
  		printf("%02x", bstream->data[i]);
  	}
  	printf("\n");
  
  	flag = memcmp(correct, bstream->data, 6);
  	flag |= (bstream->data[6] & 0x3f) != (correct[6] & 0x3f);
  
  	BitStream_free(bstream);
  	BitStream_free(bs1);
  	BitStream_free(bs2);
  	BitStream_free(bs3);
  	BitStream_free(bs4);
  
  	testEnd(flag);
  }
  
  int main(int argc, char **argv)
  {
      test_8nbitsStream();
  	test_varStream();
  	test_1bitStream();
  	test_bitStreamAppend();
  
  	report();
  
      return 0;
  }
  

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