import pixie/fileformats/png, strformat, pngsuite, pixie/common for file in pngSuiteFiles: let original = cast[seq[uint8]]( readFile(&"tests/images/png/pngsuite/{file}.png") ) decoded = decodePng(original) encoded = encodePng(decoded) decoded2 = decodePng(cast[seq[uint8]](encoded)) doAssert decoded.height == decoded2.height doAssert decoded.width == decoded2.width doAssert decoded.data == decoded2.data for channels in 1 .. 4: var data: seq[uint8] for x in 0 ..< 16: for y in 0 ..< 16: var components = newSeq[uint8](channels) for i in 0 ..< channels: components[i] = (x * 16).uint8 data.add(components) let encoded = encodePng(16, 16, channels, data[0].addr, data.len) for file in pngSuiteCorruptedFiles: try: discard decodePng(readFile(&"tests/images/png/pngsuite/{file}.png")) doAssert false except PixieError: discard