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import importlib
import os
from snitun.multiplexer import const
def test_override_constants_from_env():
"""Test overriding constants from environment variables."""
os.environ.pop("MULTIPLEXER_INCOMING_QUEUE_MAX_BYTES_CHANNEL", None)
os.environ.pop("MULTIPLEXER_INCOMING_QUEUE_MAX_BYTES_CHANNEL_V0", None)
os.environ.pop("MULTIPLEXER_INCOMING_QUEUE_LOW_WATERMARK", None)
os.environ.pop("MULTIPLEXER_INCOMING_QUEUE_HIGH_WATERMARK", None)
os.environ.pop("MULTIPLEXER_OUTGOING_QUEUE_MAX_BYTES_CHANNEL", None)
os.environ.pop("MULTIPLEXER_OUTGOING_QUEUE_LOW_WATERMARK", None)
os.environ.pop("MULTIPLEXER_OUTGOING_QUEUE_HIGH_WATERMARK", None)
importlib.reload(const)
assert (
const.INCOMING_QUEUE_MAX_BYTES_CHANNEL
== const.DEFAULT_INCOMING_QUEUE_MAX_BYTES_CHANNEL
)
assert (
const.INCOMING_QUEUE_MAX_BYTES_CHANNEL_V0
== const.DEFAULT_INCOMING_QUEUE_MAX_BYTES_CHANNEL_V0
)
assert (
const.INCOMING_QUEUE_LOW_WATERMARK == const.DEFAULT_INCOMING_QUEUE_LOW_WATERMARK
)
assert (
const.INCOMING_QUEUE_HIGH_WATERMARK
== const.DEFAULT_INCOMING_QUEUE_HIGH_WATERMARK
)
assert (
const.OUTGOING_QUEUE_MAX_BYTES_CHANNEL
== const.DEFAULT_OUTGOING_QUEUE_MAX_BYTES_CHANNEL
)
assert (
const.OUTGOING_QUEUE_LOW_WATERMARK == const.DEFAULT_OUTGOING_QUEUE_LOW_WATERMARK
)
assert (
const.OUTGOING_QUEUE_HIGH_WATERMARK
== const.DEFAULT_OUTGOING_QUEUE_HIGH_WATERMARK
)
os.environ["MULTIPLEXER_INCOMING_QUEUE_MAX_BYTES_CHANNEL"] = "1"
os.environ["MULTIPLEXER_INCOMING_QUEUE_MAX_BYTES_CHANNEL_V0"] = "7"
os.environ["MULTIPLEXER_INCOMING_QUEUE_LOW_WATERMARK"] = "2"
os.environ["MULTIPLEXER_INCOMING_QUEUE_HIGH_WATERMARK"] = "3"
os.environ["MULTIPLEXER_OUTGOING_QUEUE_MAX_BYTES_CHANNEL"] = "4"
os.environ["MULTIPLEXER_OUTGOING_QUEUE_LOW_WATERMARK"] = "5"
os.environ["MULTIPLEXER_OUTGOING_QUEUE_HIGH_WATERMARK"] = "6"
importlib.reload(const)
assert const.INCOMING_QUEUE_MAX_BYTES_CHANNEL == 1
assert const.INCOMING_QUEUE_MAX_BYTES_CHANNEL_V0 == 7
assert const.INCOMING_QUEUE_LOW_WATERMARK == 2
assert const.INCOMING_QUEUE_HIGH_WATERMARK == 3
assert const.OUTGOING_QUEUE_MAX_BYTES_CHANNEL == 4
assert const.OUTGOING_QUEUE_LOW_WATERMARK == 5
assert const.OUTGOING_QUEUE_HIGH_WATERMARK == 6
del os.environ["MULTIPLEXER_INCOMING_QUEUE_MAX_BYTES_CHANNEL"]
del os.environ["MULTIPLEXER_INCOMING_QUEUE_MAX_BYTES_CHANNEL_V0"]
del os.environ["MULTIPLEXER_INCOMING_QUEUE_LOW_WATERMARK"]
del os.environ["MULTIPLEXER_INCOMING_QUEUE_HIGH_WATERMARK"]
del os.environ["MULTIPLEXER_OUTGOING_QUEUE_MAX_BYTES_CHANNEL"]
del os.environ["MULTIPLEXER_OUTGOING_QUEUE_LOW_WATERMARK"]
del os.environ["MULTIPLEXER_OUTGOING_QUEUE_HIGH_WATERMARK"]
importlib.reload(const)
assert (
const.INCOMING_QUEUE_MAX_BYTES_CHANNEL
== const.DEFAULT_INCOMING_QUEUE_MAX_BYTES_CHANNEL
)
assert (
const.INCOMING_QUEUE_MAX_BYTES_CHANNEL_V0
== const.DEFAULT_INCOMING_QUEUE_MAX_BYTES_CHANNEL_V0
)
assert (
const.INCOMING_QUEUE_LOW_WATERMARK == const.DEFAULT_INCOMING_QUEUE_LOW_WATERMARK
)
assert (
const.INCOMING_QUEUE_HIGH_WATERMARK
== const.DEFAULT_INCOMING_QUEUE_HIGH_WATERMARK
)
assert (
const.OUTGOING_QUEUE_MAX_BYTES_CHANNEL
== const.DEFAULT_OUTGOING_QUEUE_MAX_BYTES_CHANNEL
)
assert (
const.OUTGOING_QUEUE_LOW_WATERMARK == const.DEFAULT_OUTGOING_QUEUE_LOW_WATERMARK
)
assert (
const.OUTGOING_QUEUE_HIGH_WATERMARK
== const.DEFAULT_OUTGOING_QUEUE_HIGH_WATERMARK
)
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