test_endian.cpp

// Description: Testing for endian conversions
// DocumentationOf: endian.h

#include "test/test_init.h"

#include "pastel/sys/endian.h"

TEST_CASE("EndianConvert (Endian)")
{
    uint8 data[] = {0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8};

    int16& wordData = (int16&)data[0];
    uint16& uwordData = (uint16&)data[0];
    int32& dwordData = (int32&)data[0];
    uint32& udwordData = (uint32&)data[0];
    int64& qwordData = (int64&)data[0];
    uint64& uqwordData = (uint64&)data[0];

    {
        int16 wordResult = littleEndian(wordData);
        REQUIRE(wordResult == 0x0201);

        uint16 uwordResult = littleEndian(uwordData);
        REQUIRE(uwordResult == 0x0201);

        int32 dwordResult = littleEndian(dwordData);
        REQUIRE(dwordResult == 0x04030201);

        uint32 udwordResult = littleEndian(udwordData);
        REQUIRE(udwordResult == 0x04030201);

        int64 qwordResult = littleEndian(qwordData);
        REQUIRE(qwordResult == 0x0807060504030201ll);

        uint64 uqwordResult = littleEndian(uqwordData);
        REQUIRE(uqwordResult == 0x0807060504030201ull);
    }
    {
        int16 wordResult = bigEndian(wordData);
        REQUIRE(wordResult == 0x0102);

        uint16 uwordResult = bigEndian(uwordData);
        REQUIRE(uwordResult == 0x0102);

        int32 dwordResult = bigEndian(dwordData);
        REQUIRE(dwordResult == 0x01020304);

        uint32 udwordResult = bigEndian(udwordData);
        REQUIRE(udwordResult == 0x01020304);

        int64 qwordResult = bigEndian(qwordData);
        REQUIRE(qwordResult == 0x0102030405060708ll);

        uint64 uqwordResult = bigEndian(uqwordData);
        REQUIRE(uqwordResult == 0x0102030405060708ull);
    }
}