import os
import pytest
from electrumx.lib import util, tx
def test_cachedproperty():
class Target:
CALL_COUNT = 0
def __init__(self):
self.call_count = 0
@util.cachedproperty
def prop(self):
self.call_count += 1
return self.call_count
@util.cachedproperty
def cls_prop(cls):
cls.CALL_COUNT += 1
return cls.CALL_COUNT
t = Target()
assert t.prop == t.prop == 1
assert Target.cls_prop == Target.cls_prop == 1
def test_formatted_time():
assert util.formatted_time(0) == '00s'
assert util.formatted_time(59) == '59s'
assert util.formatted_time(60) == '01m 00s'
assert util.formatted_time(3599) == '59m 59s'
assert util.formatted_time(3600) == '01h 00m 00s'
assert util.formatted_time(3600*24) == '1d 00h 00m'
assert util.formatted_time(3600*24*367) == '367d 00h 00m'
assert util.formatted_time(3600*24, ':') == '1d:00h:00m'
def test_deep_getsizeof():
int_t = util.deep_getsizeof(1)
assert util.deep_getsizeof('foo') == util.deep_getsizeof('') + 3
assert util.deep_getsizeof([1, 1]) > 2 * int_t
assert util.deep_getsizeof({1: 1}) > 2 * int_t
assert util.deep_getsizeof({1: {1: 1}}) > 3 * int_t
class Base:
pass
class A(Base):
pass
class B(Base):
pass
def test_subclasses():
assert util.subclasses(Base) == [A, B]
assert util.subclasses(Base, strict=False) == [A, B, Base]
def test_chunks():
assert list(util.chunks([1, 2, 3, 4, 5], 2)) == [[1, 2], [3, 4], [5]]
def test_increment_byte_string():
assert util.increment_byte_string(b'1') == b'2'
assert util.increment_byte_string(b'\x01\x01') == b'\x01\x02'
assert util.increment_byte_string(b'\xff\xff') is None
def test_bytes_to_int():
assert util.bytes_to_int(b'\x07[\xcd\x15') == 123456789
def test_int_to_bytes():
assert util.int_to_bytes(456789) == b'\x06\xf8U'
def test_int_to_varint():
with pytest.raises(ValueError):
util.int_to_varint(-1)
assert util.int_to_varint(0) == b'\0'
assert util.int_to_varint(5) == b'\5'
assert util.int_to_varint(252) == b'\xfc'
assert util.int_to_varint(253) == b'\xfd\xfd\0'
assert util.int_to_varint(65535) == b'\xfd\xff\xff'
assert util.int_to_varint(65536) == b'\xfe\0\0\1\0'
assert util.int_to_varint(2**32-1) == b'\xfe\xff\xff\xff\xff'
assert util.int_to_varint(2**32) == b'\xff\0\0\0\0\1\0\0\0'
assert util.int_to_varint(2**64-1) \
== b'\xff\xff\xff\xff\xff\xff\xff\xff\xff'
def test_LogicalFile(tmpdir):
prefix = os.path.join(tmpdir, 'log')
L = util.LogicalFile(prefix, 2, 6)
with pytest.raises(FileNotFoundError):
L.open_file(0, create=False)
# Check L.open creates a file
with L.open_file(8, create=True) as f:
pass
with util.open_file(prefix + '01') as f:
pass
L.write(0, b'987')
assert L.read(0, -1) == b'987'
assert L.read(0, 4) == b'987'
assert L.read(1, 1) == b'8'
L.write(0, b'01234567890')
assert L.read(0, -1) == b'01234567890'
assert L.read(5, -1) == b'567890'
with util.open_file(prefix + '01') as f:
assert f.read(-1) == b'67890'
# Test file boundary
L.write(0, b'957' * 6)
assert L.read(0, -1) == b'957' * 6
def test_open_fns(tmpdir):
tmpfile = os.path.join(tmpdir, 'file1')
with pytest.raises(FileNotFoundError):
util.open_file(tmpfile)
with util.open_file(tmpfile, create=True) as f:
f.write(b'56')
with util.open_file(tmpfile) as f:
assert f.read(3) == b'56'
# Test open_truncate truncates and creates
with util.open_truncate(tmpfile) as f:
assert f.read(3) == b''
tmpfile = os.path.join(tmpdir, 'file2')
with util.open_truncate(tmpfile) as f:
assert f.read(3) == b''
def test_address_string():
assert util.address_string(('foo.bar', 84)) == 'foo.bar:84'
assert util.address_string(('1.2.3.4', 84)) == '1.2.3.4:84'
assert util.address_string(('0a::23', 84)) == '[a::23]:84'
def test_is_valid_hostname():
is_valid_hostname = util.is_valid_hostname
assert not is_valid_hostname('')
assert is_valid_hostname('a')
assert is_valid_hostname('_')
# Hyphens
assert not is_valid_hostname('-b')
assert not is_valid_hostname('a.-b')
assert is_valid_hostname('a-b')
assert not is_valid_hostname('b-')
assert not is_valid_hostname('b-.c')
# Dots
assert is_valid_hostname('a.')
assert is_valid_hostname('foo1.Foo')
assert not is_valid_hostname('foo1..Foo')
assert is_valid_hostname('12Foo.Bar.Bax_')
assert is_valid_hostname('12Foo.Bar.Baz_12')
# 63 octets in part
assert is_valid_hostname('a.abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMN'
'OPQRSTUVWXYZ0123456789_.bar')
# Over 63 octets in part
assert not is_valid_hostname('a.abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMN'
'OPQRSTUVWXYZ0123456789_1.bar')
len255 = ('a' * 62 + '.') * 4 + 'abc'
assert is_valid_hostname(len255)
assert not is_valid_hostname(len255 + 'd')
def test_protocol_tuple():
assert util.protocol_tuple(None) == (0, )
assert util.protocol_tuple("foo") == (0, )
assert util.protocol_tuple(1) == (0, )
assert util.protocol_tuple("1") == (1, )
assert util.protocol_tuple("0.1") == (0, 1)
assert util.protocol_tuple("0.10") == (0, 10)
assert util.protocol_tuple("2.5.3") == (2, 5, 3)
def test_version_string():
assert util.version_string(()) == "0.0"
assert util.version_string((1, )) == "1.0"
assert util.version_string((1, 2)) == "1.2"
assert util.version_string((1, 3, 2)) == "1.3.2"
def test_protocol_version():
assert util.protocol_version(None, (1, 0), (1, 0)) == ((1, 0), (1, 0))
assert util.protocol_version("0.10", (0, 1), (1, 1)) == ((0, 10), (0, 10))
assert util.protocol_version("1.0", (1, 0), (1, 0)) == ((1, 0), (1, 0))
assert util.protocol_version("1.0", (1, 0), (1, 1)) == ((1, 0), (1, 0))
assert util.protocol_version("1.1", (1, 0), (1, 1)) == ((1, 1), (1, 1))
assert util.protocol_version("1.2", (1, 0), (1, 1)) == (None, (1, 2))
assert util.protocol_version("0.9", (1, 0), (1, 1)) == (None, (0, 9))
assert util.protocol_version(["0.9", "1.0"], (1, 0), (1, 1)) \
== ((1, 0), (0, 9))
assert util.protocol_version(["0.9", "1.1"], (1, 0), (1, 1)) \
== ((1, 1), (0,9))
assert util.protocol_version(["1.1", "0.9"], (1, 0), (1, 1)) \
== (None, (1, 1))
assert util.protocol_version(["0.8", "0.9"], (1, 0), (1, 1)) \
== (None, (0, 8))
assert util.protocol_version(["1.1", "1.2"], (1, 0), (1, 1)) \
== ((1, 1), (1, 1))
assert util.protocol_version(["1.2", "1.3"], (1, 0), (1, 1)) \
== (None, (1, 2))
def test_unpackers():
b = bytes(range(256))
assert util.unpack_int32_from(b, 0) == (50462976,)
assert util.unpack_int32_from(b, 42) == (757869354,)
assert util.unpack_int64_from(b, 0) == (506097522914230528,)
assert util.unpack_int64_from(b, 42) == (3544384782113450794,)
assert util.unpack_uint16_from(b, 0) == (256,)
assert util.unpack_uint16_from(b, 42) == (11050,)
assert util.unpack_uint32_from(b, 0) == (50462976,)
assert util.unpack_uint32_from(b, 42) == (757869354,)
assert util.unpack_uint64_from(b, 0) == (506097522914230528,)
assert util.unpack_uint64_from(b, 42) == (3544384782113450794,)
def test_hex_transforms():
h = "AABBCCDDEEFF"
assert util.hex_to_bytes(h) == b'\xaa\xbb\xcc\xdd\xee\xff'
def test_pack_varint():
tests = list(range(0, 258))
tests.extend([1024, 65535, 65536, 4294967295, 4294967296, 8294967296])
for n in tests:
data = util.pack_varint(n)
deser = tx.Deserializer(data)
assert deser._read_varint() == n
def test_pack_varbytes():
tests = [b'', b'1', b'2' * 253, b'3' * 254, b'4' * 256, b'5' * 65536]
for test in tests:
data = util.pack_varbytes(test)
deser = tx.Deserializer(data)
assert deser._read_varbytes() == test