def test_abi_encode_single_fixed():
assert abi.encode_single(['fixed', '128x128', []], 1.125) == (
b'\x00' * 15 + b'\x01\x20' + b'\x00' * 15)
assert abi.encode_single(['fixed', '128x128', []], -
1.125) == (b'\xff' *
15 +
b'\xfe' +
b'\xe0' +
b'\x00' *
15)
def test_abi_decode_single_fixed():
fixed_data = abi.encode_single(['fixed', '128x128', []], 1)
assert abi.decode_single(['fixed', '128x128', []], fixed_data) == 1
fixed_data = abi.encode_single(['fixed', '128x128', []], 2**127 - 1)
assert abi.decode_single(['fixed', '128x128', []],
fixed_data) == (2**127 - 1) * 1.0
fixed_data = abi.encode_single(['fixed', '128x128', []], -1)
assert abi.decode_single(['fixed', '128x128', []], fixed_data) == -1
fixed_data = abi.encode_single(['fixed', '128x128', []], -2**127)
assert abi.decode_single(['fixed', '128x128', []], fixed_data) == -2**127
def test_abi_decode_single_bytes():
typ = ['bytes', '8', []]
assert (
b'\x01\x02' +
b'\x00' *
6) == abi.decode_single(
typ,
abi.encode_single(
typ,
b'\x01\x02'))
typ = ['bytes', '', []]
assert b'\x01\x02' == abi.decode_single(
typ, abi.encode_single(typ, b'\x01\x02'))
def test_abi_encode_single_int():
assert abi.encode_single(['int', '256', []], -2 **
255) == (b'\x80' + b'\x00' * 31)
assert abi.encode_single(
['int', '256', []], (b'\x80' + b'\x00' * 31)) == (b'\x80' + b'\x00' * 31)
assert abi.encode_single(['int', '8', []], -128)[-1:] == b'\x80'
with pytest.raises(abi.ValueOutOfBounds):
assert abi.encode_single(['int', '8', []], -129)
assert abi.encode_single(['int', '8', []], 127) == zpad(b'\x7f', 32)
with pytest.raises(abi.ValueOutOfBounds):
assert abi.encode_single(['int', '8', []], 128)
def test_abi_encode_single_prefixed_address():
prefixed_address = '0x' + '0' * 40
assert abi.encode_single(
['address', '', []], prefixed_address) == b'\x00' * 32
def test_abi_decode_single_hash():
typ = ['hash', '8', []]
assert b'\x01' * \
8 == abi.decode_single(typ, abi.encode_single(typ, b'\x01' * 8))
def test_abi_encode_single_hash():
assert abi.encode_single(['hash', '8', []], b'\x00' * 8) == b'\x00' * 32
assert abi.encode_single(['hash', '8', []], '00' * 8) == b'\x00' * 32
def test_abi_encode_single_ufixed():
assert abi.encode_single(['ufixed', '128x128', []], 0) == (b'\x00' * 32)
assert abi.encode_single(['ufixed', '128x128', []], 1.125) == (
b'\x00' * 15 + b'\x01\x20' + b'\x00' * 15)
assert abi.encode_single(['ufixed', '128x128', []], 2 **
127 - 1) == (b'\x7f' + b'\xff' * 15 + b'\x00' * 16)