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trezor-firmware/core/tests/test_apps.common.writers.py

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from common import *
import apps.common.writers as writers
class TestSeed(unittest.TestCase):
def test_write_uint8(self):
buf = bytearray()
writers.write_uint8(buf, 0x12)
self.assertEqual(buf, b"\x12")
def test_write_uint16_le(self):
buf = bytearray()
writers.write_uint16_le(buf, 0x1234)
self.assertEqual(buf, b"\x34\x12")
def test_write_uint16_le_overflow(self):
buf = bytearray()
with self.assertRaises(AssertionError):
writers.write_uint16_le(buf, 0x12345678)
def test_write_uint32_le(self):
buf = bytearray()
writers.write_uint32_le(buf, 0x12345678)
self.assertEqual(buf, b"\x78\x56\x34\x12")
def test_write_uint64_le(self):
buf = bytearray()
writers.write_uint64_le(buf, 0x1234567890abcdef)
self.assertEqual(buf, b"\xef\xcd\xab\x90\x78\x56\x34\x12")
def test_write_uint32_be(self):
buf = bytearray()
writers.write_uint32_be(buf, 0x12345678)
self.assertEqual(buf, b"\x12\x34\x56\x78")
def test_write_uint64_be(self):
buf = bytearray()
writers.write_uint64_be(buf, 0x1234567890abcdef)
self.assertEqual(buf, b"\x12\x34\x56\x78\x90\xab\xcd\xef")
if __name__ == "__main__":
unittest.main()