stable/tests/test_periodiccache.py

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import time_machine
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from freqtrade.util import PeriodicCache
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def test_ttl_cache():
with time_machine.travel("2021-09-01 05:00:00 +00:00") as t:
cache = PeriodicCache(5, ttl=60)
cache1h = PeriodicCache(5, ttl=3600)
assert cache.timer() == 1630472400.0
cache['a'] = 1235
cache1h['a'] = 555123
assert 'a' in cache
assert 'a' in cache1h
t.move_to("2021-09-01 05:00:59 +00:00")
assert 'a' in cache
assert 'a' in cache1h
# Cache expired
t.move_to("2021-09-01 05:01:00 +00:00")
assert 'a' not in cache
assert 'a' in cache1h
t.move_to("2021-09-01 05:59:59 +00:00")
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assert 'a' not in cache
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assert 'a' in cache1h
t.move_to("2021-09-01 06:00:00 +00:00")
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assert 'a' not in cache
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assert 'a' not in cache1h