Pillow/Tests/test_binary.py

from .helper import PillowTestCase

from PIL import _binary


class TestBinary(PillowTestCase):
    def test_standard(self):
        self.assertEqual(_binary.i8(b"*"), 42)
        self.assertEqual(_binary.o8(42), b"*")

    def test_little_endian(self):
        self.assertEqual(_binary.i16le(b"\xff\xff\x00\x00"), 65535)
        self.assertEqual(_binary.i32le(b"\xff\xff\x00\x00"), 65535)

        self.assertEqual(_binary.o16le(65535), b"\xff\xff")
        self.assertEqual(_binary.o32le(65535), b"\xff\xff\x00\x00")

    def test_big_endian(self):
        self.assertEqual(_binary.i16be(b"\x00\x00\xff\xff"), 0)
        self.assertEqual(_binary.i32be(b"\x00\x00\xff\xff"), 65535)

        self.assertEqual(_binary.o16be(65535), b"\xff\xff")
        self.assertEqual(_binary.o32be(65535), b"\x00\x00\xff\xff")