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TIFF I/O tests - refactor to reduce code duplication + remove std::cerr

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This commit is contained in:
artemp 2017-05-17 15:07:51 +02:00
parent 6ac4ce66b3
commit 310eb71bdf
1 changed files with 38 additions and 69 deletions
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75
test/unit/imaging/tiff_io.cpp
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@ -117,10 +117,6 @@ Image generate_test_image()
template <typename Image1, typename Image2>
bool identical(Image1 const& im1, Image2 const& im2)
{
std::cerr << "gotcha! Image1 w/h" << im1.width() << ":" << im1.height()
<< " Image2 w/h" << im2.width() << ":" << im2.height()
<< std::endl;
if ((im1.width() != im2.width()) || (im1.height() != im2.height()))
return false;
@ -128,84 +124,57 @@ bool identical(Image1 const& im1, Image2 const& im2)
{
for (std::size_t j = 0; j < im1.height(); ++j)
{
if (im1(i,j) != im2(i,j))
{
std::cerr << "FAIL at (" << i << "," << j << ") " << int(im1(i,j)) << "<>" << int(im2(i,j)) << std::endl;
//mapnik::save_to_file(im1, "/tmp/image-fail-1.tif");
//mapnik::save_to_file(im2, "/tmp/image-fail-2.tif", "tiff");
return false;
}
if (im1(i,j) != im2(i,j)) return false;
}
}
return true;
}
}
TEST_CASE("tiff io")
template <typename Image>
void test_tiff_reader(std::string const& pattern)
{
SECTION("tiff-reader rgb(a)8")
{
// generate expected rgba8 image
auto im = generate_test_image<mapnik::image_rgba8>();
// generate expected image (rgba8 or gray8)
auto im = generate_test_image<Image>();
for (auto const& path : mapnik::util::list_directory("test/data/tiff/"))
{
if (boost::iends_with(path,".tif")
&& boost::istarts_with(mapnik::util::basename(path), "tiff_rgb"))
&& boost::istarts_with(mapnik::util::basename(path), pattern))
{
mapnik::tiff_reader<std::filebuf> tiff_reader(path);
auto width = tiff_reader.width();
auto height = tiff_reader.height();
{
// read whole image
// whole image
auto tiff = tiff_reader.read(0, 0, width, height);
CHECK(tiff.is<mapnik::image_rgba8>());
auto im2 = tiff.get<mapnik::image_rgba8>();
CHECK(tiff.is<Image>());
auto im2 = tiff.get<Image>();
REQUIRE(identical(im, im2));
}
{
// read a portion
// portion
auto tiff = tiff_reader.read(11, 13, width - 11, height - 13);
CHECK(tiff.is<mapnik::image_rgba8>());
auto im2 = tiff.get<mapnik::image_rgba8>();
CHECK(tiff.is<Image>());
auto im2 = tiff.get<Image>();
auto view = mapnik::image_view_rgba8(11, 13, width, height, im);
REQUIRE(identical(view, im2));
}
}
}
}
}
TEST_CASE("tiff io")
{
SECTION("tiff-reader rgb8+rgba8")
{
test_tiff_reader<mapnik::image_rgba8>("tiff_rgb");
}
SECTION("tiff-reader gray8")
{
// generate expected gray8 image
auto im = generate_test_image<mapnik::image_gray8>();
for (auto const& path : mapnik::util::list_directory("test/data/tiff/"))
{
if (boost::iends_with(path,".tif")
&& boost::istarts_with(mapnik::util::basename(path), "tiff_gray"))
{
std::cerr << path << std::endl;
mapnik::tiff_reader<std::filebuf> tiff_reader(path);
auto width = tiff_reader.width();
auto height = tiff_reader.height();
{
// read whole image
auto tiff = tiff_reader.read(0, 0, width, height);
CHECK(tiff.is<mapnik::image_gray8>());
auto im2 = tiff.get<mapnik::image_gray8>();
REQUIRE(identical(im, im2));
}
{
// read a portion
auto tiff = tiff_reader.read(11, 13, width - 11, height - 13);
CHECK(tiff.is<mapnik::image_gray8>());
auto im2 = tiff.get<mapnik::image_gray8>();
auto view = mapnik::image_view_gray8(11, 13, width, height, im);
REQUIRE(identical(view, im2));
}
}
}
test_tiff_reader<mapnik::image_rgba8>("tiff_gray");
}
SECTION("scan rgb8 striped")