def test_seek(self):
base = TReader(self.packets)
filter = streamio.TextInputFilter(base)
def f():
sofar = ""
pairs = []
while True:
pairs.append((sofar, filter.tell()))
c = filter.read(1)
if not c:
break
assert len(c) == 1
sofar += c
all = sofar
for i in range(len(pairs)):
sofar, pos = pairs[i]
filter.seek(pos, 0)
assert filter.tell() == pos
assert filter.tell() == pos
bufs = [sofar]
while True:
data = filter.read(100)
if not data:
assert filter.read(100) == ""
break
bufs.append(data)
assert "".join(bufs) == all
self.interpret(f, [])
def test_read(self):
base = TReader(self.packets)
filter = streamio.TextInputFilter(base)
def f():
for data, pos in self.expected:
assert filter.read(100) == data
self.interpret(f, [])
def test_newlines_attribute(self):
for packets, expected in self.expected_newlines:
base = TReader(packets)
filter = streamio.TextInputFilter(base)
def f():
for e in expected:
filter.read(100)
assert filter.getnewlines() == e
self.interpret(f, [])
def test_read_tell(self):
base = TReader(self.packets)
filter = streamio.TextInputFilter(base)
def f():
for data, pos in self.expected_with_tell:
assert filter.read(100) == data
assert filter.tell() == pos
assert filter.tell() == pos # Repeat the tell() !
self.interpret(f, [])