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102 lines
2.3 KiB
C++
102 lines
2.3 KiB
C++
/*
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** The crc unit test is licensed under the Apache License, Version 2.0, and a copy of the license is included in this file.
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**
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**Author:Wang Yaofu 2018 voipman@qq.com
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**Description: The unit test file of crc.
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*/
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#include "ut/test_harness.h"
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#include "../crc/crc8.h"
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#include "../crc/crc16.h"
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#include "../crc/crc32.h"
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#include "../crc/crc64.h"
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#include "../crc/crc_poly.h"
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#include <iostream>
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#include <string.h>
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TEST(CRC8Test, BasicTest)
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{
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const char* inData = "123456789";
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uint8_t expect = 0xa2;
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EXPECT_EQ(crc8_msb(inData, 9), expect);
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const char* data = "Hello World!!!";
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expect = 0x68;
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EXPECT_EQ(crc8_msb(data, strlen(data)), expect);
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expect = 0x2c;
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EXPECT_EQ(crc8_lsb(data, strlen(data)), expect);
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}
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TEST(CRC16Test, BasicTest)
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{
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const char* inData = "123456789";
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uint16_t expect = 0x31C3;
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EXPECT_EQ(crc16(inData, 9), expect);
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}
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TEST(CRC32Test, BasicTest)
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{
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const char* inData = "123456789";
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uint32_t expect = 0xCBF43926;
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EXPECT_EQ(crc32(inData, 9), expect);
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}
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TEST(CRC64Test, BasicTest)
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{
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const char* inData = "123456789";
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uint64_t expect = 0xe9c6d914c4b8d9caL;
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EXPECT_EQ(crc64(inData, 9), expect);
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}
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TEST(CRC8PolyTest, BasicTest)
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{
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uint8_t poly = 0x31;
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uint8_t crcTab[0xFF+1] = {0};
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uint8_t expect = 0x00;
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EXPECT_EQ(crc8_poly_msb(poly, 0), expect);
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expect = 0x31;
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EXPECT_EQ(crc8_poly_msb(poly, 1), expect);
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expect = 0xac;
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EXPECT_EQ(crc8_poly_msb(poly, 0xFF), expect);
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/**
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for (int i = 0; i <= 0xff; ++i) {
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if (i % 8 == 0) {
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printf("\n");
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}
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crcTab[i] = crc8_poly_lsb(poly, i);
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printf("0x%.2x, ", crcTab[i]);
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}
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*/
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}
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TEST(CRC16PolyTest, BasicTest)
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{
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// poly = x^16 + x^12 + x^5 + 1 = 0x1021
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uint16_t poly = 0x1021;
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uint16_t crcTab[0xFF+1] = {0};
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uint16_t expect = 0x0000;
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EXPECT_EQ(crc16_poly_msb(poly, 0), expect);
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expect = 0x1021;
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EXPECT_EQ(crc16_poly_msb(poly, 1), expect);
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expect = 0x1ef0;
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EXPECT_EQ(crc16_poly_msb(poly, 0xFF), expect);
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}
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TEST(CRC32PolyTest, BasicTest)
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{
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uint32_t poly = 0xedb88320;
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uint32_t crcTab[0xFF+1] = {0};
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uint32_t expect = 0x00000000L;
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EXPECT_EQ(crc32_poly(poly, 0), expect);
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expect = 0x77073096L;
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EXPECT_EQ(crc32_poly(poly, 1), expect);
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expect = 0x2d02ef8dL;
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EXPECT_EQ(crc32_poly(poly, 0xFF), expect);
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}
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