mirror of
https://github.com/quay/quay.git
synced 2026-01-27 18:42:52 +03:00
54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
import pytest
|
|
|
|
from util.failover import failover, FailoverException
|
|
|
|
|
|
class FinishedException(Exception):
|
|
"""
|
|
Exception raised at the end of every iteration to force failover.
|
|
"""
|
|
|
|
|
|
class Counter(object):
|
|
"""
|
|
Wraps a counter in an object so that it'll be passed by reference.
|
|
"""
|
|
|
|
def __init__(self):
|
|
self.calls = 0
|
|
|
|
def increment(self):
|
|
self.calls += 1
|
|
|
|
|
|
@failover
|
|
def my_failover_func(i, should_raise=None):
|
|
"""
|
|
Increments a counter and raises an exception when told.
|
|
"""
|
|
i.increment()
|
|
if should_raise is not None:
|
|
raise should_raise()
|
|
raise FailoverException(FinishedException())
|
|
|
|
|
|
@pytest.mark.parametrize("stop_on,exception", [(10, None), (5, IndexError),])
|
|
def test_readonly_failover(stop_on, exception):
|
|
"""
|
|
Generates failover arguments and checks against a counter to ensure that the failover function
|
|
has been called the proper amount of times and stops at unhandled exceptions.
|
|
"""
|
|
counter = Counter()
|
|
arg_sets = []
|
|
for i in xrange(stop_on):
|
|
should_raise = exception if exception is not None and i == stop_on - 1 else None
|
|
arg_sets.append(((counter,), {"should_raise": should_raise}))
|
|
|
|
if exception is not None:
|
|
with pytest.raises(exception):
|
|
my_failover_func(*arg_sets)
|
|
else:
|
|
with pytest.raises(FinishedException):
|
|
my_failover_func(*arg_sets)
|
|
assert counter.calls == stop_on
|