kc3-lang/libqrencode/tests/test_mqrspec.c

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• Hash : f8ceb0d2
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  Date : 2020-08-28T18:38:00
  

  All test programs are now TAP-ready.
  

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• tests/test_mqrspec.c

• #include <stdio.h>
  #include <string.h>
  #include "common.h"
  #include "../mqrspec.h"
  
  static unsigned char v4frame[] = {
  	0xc1,0xc1,0xc1,0xc1,0xc1,0xc1,0xc1,0xc0,0x91,0x90,0x91,0x90,0x91,0x90,0x91,0x90,0x91,
  	0xc1,0xc0,0xc0,0xc0,0xc0,0xc0,0xc1,0xc0,0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0xc1,0xc0,0xc1,0xc1,0xc1,0xc0,0xc1,0xc0,0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0xc1,0xc0,0xc1,0xc1,0xc1,0xc0,0xc1,0xc0,0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0xc1,0xc0,0xc1,0xc1,0xc1,0xc0,0xc1,0xc0,0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0xc1,0xc0,0xc0,0xc0,0xc0,0xc0,0xc1,0xc0,0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0xc1,0xc1,0xc1,0xc1,0xc1,0xc1,0xc1,0xc0,0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0xc0,0xc0,0xc0,0xc0,0xc0,0xc0,0xc0,0xc0,0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0x91,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0x90,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0x91,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0x90,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0x91,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0x90,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0x91,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0x90,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  	0x91,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
  };
  
  static void test_newFrame(void)
  {
  	int width, i, y;
  	unsigned char *frame;
  
  	testStart("Test empty frames");
  	for(i=1; i<MQRSPEC_VERSION_MAX; i++) {
  		frame = MQRspec_newFrame(i);
  		width = MQRspec_getWidth(i);
  		for(y=0; y<width; y++) {
  			assert_zero(memcmp(&frame[y * width], &v4frame[y * MQRSPEC_WIDTH_MAX], width), "Mismatch found in version %d, line %d.\n", i, y);
  		}
  		free(frame);
  	}
  	testFinish();
  }
  
  static void test_newframe_invalid(void)
  {
  	unsigned char *frame;
  
  	testStart("Checking MQRspec_newFrame with invalid version.");
  	frame = MQRspec_newFrame(0);
  	assert_null(frame, "MQRspec_newFrame(0) returns non-NULL.");
  	frame = MQRspec_newFrame(MQRSPEC_VERSION_MAX+1);
  	assert_null(frame, "MQRspec_newFrame(0) returns non-NULL.");
  	testFinish();
  }
  
  /* See Table 10 (pp.115) of Appendix 1, JIS X0510:2004 */
  static unsigned int calcFormatInfo(int type, int mask)
  {
  	unsigned int data, ecc, b, code;
  	int i, c;
  
  	data = (type << 12) | (mask << 10);
  	ecc = data;
  	b = 1 << 14;
  	for(i=0; b != 0; i++) {
  		if(ecc & b) break;
  		b = b >> 1;
  	}
  	c = 4 - i;
  	code = 0x537 << c ; //10100110111
  	b = 1 << (10 + c);
  	for(i=0; i<=c; i++) {
  		if(b & ecc) {
  			ecc ^= code;
  		}
  		code = code >> 1;
  		b = b >> 1;
  	}
  
  	return (data | ecc) ^ 0x4445;
  }
  
  /* See Table 10 of Appendix 1. (pp.115) */
  static const int typeTable[4][3] = {
  	{ 0, -1, -1},
  	{ 1,  2, -1},
  	{ 3,  4, -1},
  	{ 5,  6,  7}
  };
  
  static void test_format(void)
  {
  	unsigned int format;
  	int version, l, mask;
  	int type;
  	int err = 0;
  
  	testStart("Format info test");
  	for(version=1; version<=MQRSPEC_VERSION_MAX; version++) {
  		for(l=QR_ECLEVEL_L; l<=QR_ECLEVEL_Q; l++) {
  			for(mask=0; mask<4; mask++) {
  				format = MQRspec_getFormatInfo(mask, version, (QRecLevel)l);
  				type = typeTable[version - 1][l];
  				if(type == -1) {
  					if(format != 0) {
  						printf("Error in version %d, level %d, mask %d\n",
  								version, l, mask);
  						err++;
  					}
  				} else {
  					if(format != calcFormatInfo(type, mask)) {
  						printf("Error in version %d, level %d, mask %d\n",
  								version, l, mask);
  						err++;
  					}
  				}
  			}
  		}
  	}
  	testEnd(err);
  }
  
  static void print_format(void)
  {
  	unsigned int format;
  	int i, j;
  
  	puts("\nPrinting hex strings of format information.");
  	for(i=0; i<4; i++) {
  		for(j=0; j<8; j++) {
  			format = calcFormatInfo(j, i);
  			printf("0x%04x, ", format);
  		}
  		printf("\n");
  	}
  }
  
  /**
   * See Table 7 of Appendix 1.
   */
  static int datalen[4][3] = {
  	{ 20,   0,  0},
  	{ 40,  32,  0},
  	{ 84,  68,  0},
  	{128, 112, 80},
  };
  
  static void test_dataLength(void)
  {
  	int v, l;
  	int bits;
  	int err = 0;
  
  	testStart("Test dataLength");
  	for(v=0; v<4; v++) {
  		for(l=0; l<3; l++) {
  			bits = MQRspec_getDataLengthBit(v+1, (QRecLevel)l);
  			if(bits != datalen[v][l]) {
  				printf("Error in version %d, level %d.\n", v, l);
  				err++;
  			}
  		}
  	}
  	testEnd(err);
  }
  
  int main(int argc, char **argv)
  {
  	int tests = 4;
  	testInit(tests);
  	test_newFrame();
  	test_newframe_invalid();
  	test_format();
  	test_dataLength();
  	testReport(tests);
  
  	if(argc > 1) {
  		print_format();
  	}
  
  	return 0;
  }
  

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