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https://github.com/scummvm/scummvm.git
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Vladimir Serbinenko
357249fb5a
They have almost nothing in common. And we probably want to kill slow implementation anyway now that we have tests
70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
#include <cxxtest/TestSuite.h>
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#include "common/crc.h"
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#include "common/crc_slow.h"
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namespace {
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const byte *testString = (const byte *)"The quick brown fox jumps over the lazy dog";
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const int testLen = 43;
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}
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class CrcTestSuite : public CxxTest::TestSuite
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{
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public:
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void test_crc32() {
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Common::CRC32 crc;
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TS_ASSERT_EQUALS(crc.crcFast(testString, testLen), 0x414fa339U);
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uint32 running = crc.getInitRemainder();
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for (const byte *ptr = testString; *ptr; ptr++)
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running = crc.processByte(*ptr, running);
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TS_ASSERT_EQUALS(crc.finalize(running), 0x414fa339U);
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}
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void test_crc16() {
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Common::CRC16 crc;
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TS_ASSERT_EQUALS(crc.crcFast(testString, testLen), 0xfcdfU);
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uint16 running = crc.getInitRemainder();
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for (const byte *ptr = testString; *ptr; ptr++)
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running = crc.processByte(*ptr, running);
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TS_ASSERT_EQUALS(crc.finalize(running), 0xfcdfU);
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}
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void test_crc_ccitt() {
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Common::CRC_CCITT crc; // aka ccitt-false
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TS_ASSERT_EQUALS(crc.crcFast(testString, testLen), 0x8fddU);
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uint16 running = crc.getInitRemainder();
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for (const byte *ptr = testString; *ptr; ptr++)
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running = crc.processByte(*ptr, running);
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TS_ASSERT_EQUALS(crc.finalize(running), 0x8fddU);
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}
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void test_crc_binhex() {
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Common::CRC_BINHEX crc; // Aka xmodem
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TS_ASSERT_EQUALS(crc.crcFast(testString, testLen), 0xf0c8U);
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uint16 running = crc.getInitRemainder();
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for (const byte *ptr = testString; *ptr; ptr++)
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running = crc.processByte(*ptr, running);
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TS_ASSERT_EQUALS(crc.finalize(running), 0xf0c8U);
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}
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void test_crc32_slow() {
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Common::CRC32_Slow crc;
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TS_ASSERT_EQUALS(crc.crcSlow(testString, testLen), 0x414fa339U);
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}
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void test_crc16_slow() {
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Common::CRC16_Slow crc;
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TS_ASSERT_EQUALS(crc.crcSlow(testString, testLen), 0xfcdfU);
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}
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void test_crc_ccitt_slow() {
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Common::CRC_CCITT_Slow crc; // aka ccitt-false
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TS_ASSERT_EQUALS(crc.crcSlow(testString, testLen), 0x8fddU);
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}
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void test_crc_binhex_slow() {
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Common::CRC_BINHEX_Slow crc; // Aka xmodem
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TS_ASSERT_EQUALS(crc.crcSlow(testString, testLen), 0xf0c8U);
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}
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};
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