#include "gtestwrapper.h"
#include <image_int.hpp>
using namespace Exiv2::Internal;
using Exiv2::makeSlice;
using Exiv2::Slice;
static const unsigned char buf[10] = {'a', 'b', 'c', 1, 4, 0, 'e', 136, 0, 'a'};
template <typename T>
void checkBinaryToString(const Exiv2::Slice<T> sl, const char* expectedOutput)
{
// construct the helper manually so that we catch potential invalidation of
// temporaries
std::stringstream ss;
const binaryToStringHelper<T> helper = binaryToString(sl);
ss << helper;
ASSERT_STREQ(ss.str().c_str(), expectedOutput);
}
TEST(binaryToString, zeroStart)
{
// a, b, c are printable, 1 & 4 are not => '.', 0 at last position => skipped
checkBinaryToString(makeSlice(buf, 0, 6), "abc..");
// same as previous, but now last element is not ignored since it is not 0
checkBinaryToString(makeSlice(buf, 0, 5), "abc..");
// same as first, only now the 0 & 136 are converted to '.'
checkBinaryToString(makeSlice(buf, 0, 8), "abc...e.");
// should result in the same as previously, as trailing zero is ignored
checkBinaryToString(makeSlice(buf, 0, 9), "abc...e.");
// ensure that the function does not overread when last element != 0
checkBinaryToString(makeSlice(buf, 0, sizeof(buf)), "abc...e..a");
}
TEST(binaryToString, nonZeroStart)
{
// start @ index 1, read 6 characters (until e)
checkBinaryToString(makeSlice(buf, 1, 7), "bc...e");
// start @ index 3, read until end
checkBinaryToString(makeSlice(buf, 3, sizeof(buf)), "...e..a");
}