Function TEST

pj_scene2D/tests/codecs_test.cpp:109–121

}  // namespace

TEST(PngCodecTest, RejectsAbsurdDimensionsBeforeAllocating) {
  // A real 2x2 PNG with its IHDR forged to 11000x11000 (121 MP > the 100 MP cap).
  // Without the cap the decoder value-initializes a ~240 MB buffer straight from
  // these header bytes; the cap must reject up front with a dimension error.
  auto small = PJ::test::makeGrayPng(2, 2, 16, std::vector<uint16_t>{0, 1000, 2000, 3000});
  ASSERT_GT(small.size(), 33u);
  auto huge = pngWithPatchedDimensions(small, 11000, 11000);

  PJ::PngCodec codec;
  auto result = codec.decode(rawBytesFrame(huge));
  ASSERT_FALSE(result.has_value());
  EXPECT_NE(result.error().find("dimension"), std::string::npos) << "got: " << result.error();
}

TEST(AutoImageCodecTest, NormalizesMono16PngToRgbGrayscale) {
  const std::vector<uint16_t> values = {0, 1000, 2000, 3000};