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bonobo/tests/structs/test_inputs.py
2018-08-11 06:34:37 +02:00

67 lines
1.8 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright 2012-2014 Romain Dorgueil
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from queue import Empty
import pytest
from bonobo.constants import BEGIN, END
from bonobo.errors import InactiveReadableError, InactiveWritableError
from bonobo.structs.inputs import Input
def test_input_runlevels():
q = Input()
# Before BEGIN, noone should be able to write in an Input queue.
assert not q.alive
with pytest.raises(InactiveWritableError):
q.put('hello, unborn queue.')
# Begin
q.put(BEGIN)
assert q.alive and q._runlevel == 1
q.put('foo')
# Second Begin
q.put(BEGIN)
assert q.alive and q._runlevel == 2
q.put('bar')
q.put(END)
# FIFO
assert q.get() == 'foo'
assert q.get() == 'bar'
# self.assertEqual(q.alive, False) XXX queue don't know it's dead yet, but it is ...
# Async get raises Empty (End is not returned)
with pytest.raises(Empty):
q.get(block=False)
assert q.alive
# Before killing, let's slide some data in.
q.put('baz')
# Now kill the queue...
q.put(END)
with pytest.raises(InactiveWritableError):
q.put('foo')
# Still can get remaining data
assert q.get() == 'baz'
with pytest.raises(InactiveReadableError):
q.get()