micropython-lib/uasyncio/test_readexactly.py

32 wiersze
638 B
Python

from uasyncio import StreamReader
class MockSock:
def __init__(self, data_list):
self.data = data_list
def read(self, sz):
try:
return self.data.pop(0)
except IndexError:
return b""
mock = MockSock([
b"123",
b"234", b"5",
b"a", b"b", b"c", b"d", b"e",
])
def func():
sr = StreamReader(mock)
assert await sr.readexactly(3) == b"123"
assert await sr.readexactly(4) == b"2345"
assert await sr.readexactly(5) == b"abcde"
# This isn't how it should be, but the current behavior
assert await sr.readexactly(10) == b""
for i in func():
pass