#include <tiffimage_int.hpp>
#include "gtestwrapper.h"
#include <sstream>
using namespace Exiv2;
static const byte tiffLittleEndian[] = {0x49, 0x49, 0x2a, 0x00, 0x10, 0x00, 0x00, 0x00};
class ATiffHeader: public ::testing::Test
{
public:
Internal::TiffHeader header;
};
TEST_F(ATiffHeader, hasExpectedValuesAfterCreation)
{
ASSERT_EQ(8u, header.size());
ASSERT_EQ(42, header.tag());
ASSERT_EQ(8u, header.offset());
ASSERT_EQ(littleEndian, header.byteOrder());
}
TEST_F(ATiffHeader, canBeWrittenAndItsSizeIs8Bytes)
{
DataBuf buffer = header.write();
ASSERT_EQ(header.size(), buffer.size_);
ASSERT_EQ(8u, header.size());
}
TEST_F(ATiffHeader, readDataFromBufferWithCorrectSize)
{
ASSERT_TRUE(header.read(tiffLittleEndian, 8));
}
TEST_F(ATiffHeader, failToReadDataFromBufferWithCorrectSizeButNull)
{
ASSERT_FALSE(header.read(NULL, 8));
}
TEST_F(ATiffHeader, failToReadDataFromBufferWithSizeDifferentThan8)
{
ASSERT_FALSE(header.read(NULL, 7));
ASSERT_FALSE(header.read(NULL, 9));
}
TEST_F(ATiffHeader, failToReadDataFromBufferWithInvalidByteOrder)
{
static const byte bufferInvalidByteOrder[] = {0x88, 0x49, 0x2a, 0x00, 0x10, 0x00, 0x00, 0x00};
ASSERT_FALSE(header.read(bufferInvalidByteOrder, 8));
}
TEST_F(ATiffHeader, failToReadDataFromBufferWithInvalidTag)
{
static const byte bufferInvalidTag[] = {0x49, 0x49, 0x29, 0x00, 0x10, 0x00, 0x00, 0x00};
ASSERT_FALSE(header.read(bufferInvalidTag, 8));
}
TEST_F(ATiffHeader, printsDefaultValues)
{
std::ostringstream str;
header.print(str, "");
ASSERT_STREQ("TIFF header, offset = 0x00000008, little endian encoded\n", str.str().c_str());
}