SPIRV-Tools/test/BinaryEndianness.cpp

// Copyright (c) 2015 The Khronos Group Inc.
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#include "UnitSPIRV.h"

TEST(BinaryEndianness, InvalidCode) {
  uint32_t invalidMagicNumber[] = {0};
  spv_binary_t binary = {invalidMagicNumber, 1};
  spv_endianness_t endian;
  ASSERT_EQ(SPV_ERROR_INVALID_BINARY, spvBinaryEndianness(&binary, &endian));
}

TEST(BinaryEndianness, Little) {
  uint32_t magicNumber;
  if (I32_ENDIAN_HOST == I32_ENDIAN_LITTLE) {
    magicNumber = 0x07230203;
  } else {
    magicNumber = 0x03022307;
  }
  spv_binary_t binary = {&magicNumber, 1};
  spv_endianness_t endian;
  ASSERT_EQ(SPV_SUCCESS, spvBinaryEndianness(&binary, &endian));
  ASSERT_EQ(SPV_ENDIANNESS_LITTLE, endian);
}

TEST(BinaryEndianness, Big) {
  uint32_t magicNumber;
  if (I32_ENDIAN_HOST == I32_ENDIAN_BIG) {
    magicNumber = 0x07230203;
  } else {
    magicNumber = 0x03022307;
  }
  spv_binary_t binary = {&magicNumber, 1};
  spv_endianness_t endian;
  ASSERT_EQ(SPV_SUCCESS, spvBinaryEndianness(&binary, &endian));
  ASSERT_EQ(SPV_ENDIANNESS_BIG, endian);
}