test_sqs sometimes fail.

[cm-iwata]

test_sqs sometimes pass. but, and also sometimes fail like this.
https://github.com/spulec/moto/runs/6861570976?check_suite_focus=true

Here is detail log.

2022-06-13T13:19:42.2405310Z =================================== FAILURES ===================================
2022-06-13T13:19:42.2405769Z ______________ test_change_message_visibility_on_visible_message _______________
2022-06-13T13:19:42.2406124Z
2022-06-13T13:19:42.2406726Z self = <sure.AssertionBuilder object at 0x7fb372262090>, args = ('0',), kw = {}
2022-06-13T13:19:42.2407049Z
2022-06-13T13:19:42.2407223Z     @wraps(func)
2022-06-13T13:19:42.2407559Z     def wrapper(self, *args, **kw):
2022-06-13T13:19:42.2407898Z         try:
2022-06-13T13:19:42.2408236Z >           value = func(self, *args, **kw)
2022-06-13T13:19:42.2408473Z
2022-06-13T13:19:42.2408917Z /opt/hostedtoolcache/Python/3.7.13/x64/lib/python3.7/site-packages/sure/__init__.py:408:
2022-06-13T13:19:42.2409729Z _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2022-06-13T13:19:42.2409987Z
2022-06-13T13:19:42.2410383Z self = <sure.AssertionBuilder object at 0x7fb372262090>, what = '0'
2022-06-13T13:19:42.2410778Z epsilon = None
2022-06-13T13:19:42.2411002Z
2022-06-13T13:19:42.2411184Z     @assertionmethod
2022-06-13T13:19:42.2411546Z     def equal(self, what, epsilon=None):
2022-06-13T13:19:42.2411959Z         """compares given object ``X``  with an expected ``Y`` object.
2022-06-13T13:19:42.2412338Z
2022-06-13T13:19:42.2412733Z         It primarily assures that the compared objects are absolute equal ``==``.
2022-06-13T13:19:42.2413105Z
2022-06-13T13:19:42.2413432Z         :param what: the expected value
2022-06-13T13:19:42.2414022Z         :param epsilon: a delta to leverage upper-bound floating point permissiveness
2022-06-13T13:19:42.2414435Z         """
2022-06-13T13:19:42.2414722Z
2022-06-13T13:19:42.2415002Z         try:
2022-06-13T13:19:42.2415391Z             comparison = DeepComparison(self.obj, what, epsilon).compare()
2022-06-13T13:19:42.2415794Z             error = False
2022-06-13T13:19:42.2416141Z         except AssertionError as e:
2022-06-13T13:19:42.2416479Z             error = e
2022-06-13T13:19:42.2416807Z             comparison = None
2022-06-13T13:19:42.2417119Z
2022-06-13T13:19:42.2417460Z         if isinstance(comparison, DeepExplanation):
2022-06-13T13:19:42.2417891Z             error = comparison.get_assertion(self.obj, what)
2022-06-13T13:19:42.2418258Z
2022-06-13T13:19:42.2418559Z         if self.negative:
2022-06-13T13:19:42.2418882Z             if error:
2022-06-13T13:19:42.2419200Z                 return True
2022-06-13T13:19:42.2419502Z
2022-06-13T13:19:42.2419861Z             msg = "%s should differ from %s, but is the same thing"
2022-06-13T13:19:42.2420304Z             raise AssertionError(msg % (safe_repr(self.obj), safe_repr(what)))
2022-06-13T13:19:42.2420687Z
2022-06-13T13:19:42.2421001Z         else:
2022-06-13T13:19:42.2421313Z             if not error:
2022-06-13T13:19:42.2421789Z                 return True
2022-06-13T13:19:42.2422140Z >           raise error
2022-06-13T13:19:42.2422718Z
2022-06-13T13:19:42.2423197Z /opt/hostedtoolcache/Python/3.7.13/x64/lib/python3.7/site-packages/sure/__init__.py:729:
2022-06-13T13:19:42.2423673Z _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2022-06-13T13:19:42.2423673Z _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2022-06-13T13:19:42.2425058Z
2022-06-13T13:19:42.2425742Z self = <sure.AssertionBuilder object at 0x7fb372262090>, what = '0'
2022-06-13T13:19:42.2426057Z epsilon = None
2022-06-13T13:19:42.2426203Z
2022-06-13T13:19:42.2426292Z     @assertionmethod
2022-06-13T13:19:42.2426566Z     def equal(self, what, epsilon=None):
2022-06-13T13:19:42.2427484Z         """compares given object ``X``  with an expected ``Y`` object.
2022-06-13T13:19:42.2427787Z
2022-06-13T13:19:42.2428106Z         It primarily assures that the compared objects are absolute equal ``==``.
2022-06-13T13:19:42.2428605Z
2022-06-13T13:19:42.2429186Z         :param what: the expected value
2022-06-13T13:19:42.2429749Z         :param epsilon: a delta to leverage upper-bound floating point permissiveness
2022-06-13T13:19:42.2430078Z         """
2022-06-13T13:19:42.2430280Z
2022-06-13T13:19:42.2430462Z         try:
2022-06-13T13:19:42.2430781Z >           comparison = DeepComparison(self.obj, what, epsilon).compare()
2022-06-13T13:19:42.2431010Z
2022-06-13T13:19:42.2431360Z /opt/hostedtoolcache/Python/3.7.13/x64/lib/python3.7/site-packages/sure/__init__.py:710:
2022-06-13T13:19:42.2431732Z _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2022-06-13T13:19:42.2431909Z
2022-06-13T13:19:42.2432085Z self = <sure.core.DeepComparison object at 0x7fb2f2876810>
2022-06-13T13:19:42.2432304Z
2022-06-13T13:19:42.2432411Z     def compare(self):
2022-06-13T13:19:42.2432665Z         X, Y = self.operands
2022-06-13T13:19:42.2433031Z
2022-06-13T13:19:42.2433268Z         if isinstance(X, _CallList):
2022-06-13T13:19:42.2433524Z             X = list(X)
2022-06-13T13:19:42.2433721Z
2022-06-13T13:19:42.2433950Z         if isinstance(Y, _CallList):
2022-06-13T13:19:42.2434202Z             X = list(Y)
2022-06-13T13:19:42.2434399Z
2022-06-13T13:19:42.2434619Z         c = self.get_context()
2022-06-13T13:19:42.2434917Z         if self.is_complex(X) and type(X) is type(Y):
2022-06-13T13:19:42.2435237Z             return self.compare_complex_stuff(X, Y)
2022-06-13T13:19:42.2435505Z
2022-06-13T13:19:42.2435737Z         def safe_format_repr(string):
2022-06-13T13:19:42.2436156Z             "Escape '{' and '}' in string for use with str.format()"
2022-06-13T13:19:42.2436533Z             if not isinstance(string, (string_types, binary_type)):
2022-06-13T13:19:42.2436840Z                 return string
2022-06-13T13:19:42.2437049Z
2022-06-13T13:19:42.2437285Z             orig_str_type = type(string)
2022-06-13T13:19:42.2440086Z             if isinstance(string, binary_type):
2022-06-13T13:19:42.2440584Z                 safe_repr = string.replace(b'{', b'{{').replace(b'}', b'}}')
2022-06-13T13:19:42.2440880Z             else:
2022-06-13T13:19:42.2441275Z                 safe_repr = string.replace('{', '{{').replace('}', '}}')
2022-06-13T13:19:42.2441551Z
2022-06-13T13:19:42.2441998Z             # NOTE: str.replace() automatically converted the 'string' to 'unicode' in Python 2
2022-06-13T13:19:42.2442374Z             return orig_str_type(safe_repr)
2022-06-13T13:19:42.2442628Z
2022-06-13T13:19:42.2442870Z         # get safe representation for X and Y
2022-06-13T13:19:42.2443216Z         safe_X, safe_Y = safe_format_repr(X), safe_format_repr(Y)
2022-06-13T13:19:42.2443492Z
2022-06-13T13:19:42.2443776Z         # maintaining backwards compatibility between error messages
2022-06-13T13:19:42.2444079Z         kwargs = {}
2022-06-13T13:19:42.2444361Z         if self.is_simple(X) and self.is_simple(Y):
2022-06-13T13:19:42.2444857Z             kwargs['msg_format'] = 'X{{0}} is {0!r} whereas Y{{1}} is {1!r}'.format(safe_X, safe_Y)
2022-06-13T13:19:42.2445204Z         elif type(X) is not type(Y):
2022-06-13T13:19:42.2445662Z             kwargs['msg_format'] = 'X{{0}} is a {0} and Y{{1}} is a {1} instead'.format(
2022-06-13T13:19:42.2446009Z                 type(X).__name__, type(Y).__name__)
2022-06-13T13:19:42.2446305Z         exp = self.compare_generic(X, Y, **kwargs)
2022-06-13T13:19:42.2446563Z
2022-06-13T13:19:42.2446824Z         if isinstance(exp, DeepExplanation):
2022-06-13T13:19:42.2447280Z             original_X, original_Y = c.parent.operands
2022-06-13T13:19:42.2447629Z >           raise exp.as_assertion(original_X, original_Y)
2022-06-13T13:19:42.2447830Z
2022-06-13T13:19:42.2448170Z /opt/hostedtoolcache/Python/3.7.13/x64/lib/python3.7/site-packages/sure/core.py:254:
2022-06-13T13:19:42.2448552Z _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2022-06-13T13:19:42.2448717Z
2022-06-13T13:19:42.2448945Z self = "X is '1' whereas Y is '0'", X = '1', Y = '0'
2022-06-13T13:19:42.2449168Z
2022-06-13T13:19:42.2449288Z     def as_assertion(self, X, Y):
2022-06-13T13:19:42.2449571Z >       raise self.get_assertion(X, Y)
2022-06-13T13:19:42.2449842Z E       AssertionError: given
2022-06-13T13:19:42.2450129Z E       X = '1'
2022-06-13T13:19:42.2450345Z E           and
2022-06-13T13:19:42.2450589Z E       Y = '0'
2022-06-13T13:19:42.2450905Z E       X is '1' whereas Y is '0'
2022-06-13T13:19:42.2451067Z
2022-06-13T13:19:42.2451437Z /opt/hostedtoolcache/Python/3.7.13/x64/lib/python3.7/site-packages/sure/core.py:57: AssertionError
2022-06-13T13:19:42.2451712Z
2022-06-13T13:19:42.2451901Z During handling of the above exception, another exception occurred:
2022-06-13T13:19:42.2452128Z
2022-06-13T13:19:42.2452200Z     @mock_sqs
2022-06-13T13:19:42.2452495Z     def test_change_message_visibility_on_visible_message():
2022-06-13T13:19:42.2452942Z         sqs = boto3.resource("sqs", region_name="us-east-1")
2022-06-13T13:19:42.2453325Z         queue = sqs.create_queue(
2022-06-13T13:19:42.2453667Z             QueueName=str(uuid4())[0:6], Attributes={"VisibilityTimeout": "1"}
2022-06-13T13:19:42.2453964Z         )
2022-06-13T13:19:42.2454148Z
2022-06-13T13:19:42.2454419Z         queue.send_message(MessageBody="test message")
2022-06-13T13:19:42.2454788Z         messages = queue.receive_messages(MaxNumberOfMessages=1)
2022-06-13T13:19:42.2455145Z         messages.should.have.length_of(1)
2022-06-13T13:19:42.2455393Z
2022-06-13T13:19:42.2455610Z         queue.reload()
2022-06-13T13:19:42.2455961Z >       queue.attributes["ApproximateNumberOfMessages"].should.equal("0")
2022-06-13T13:19:42.2456197Z
2022-06-13T13:19:42.2456316Z tests/test_sqs/test_sqs.py:1646:
2022-06-13T13:19:42.2456610Z _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2022-06-13T13:19:42.2456781Z
2022-06-13T13:19:42.2457083Z self = <sure.AssertionBuilder object at 0x7fb372262090>, args = ('0',), kw = {}
2022-06-13T13:19:42.2457309Z
2022-06-13T13:19:42.2457401Z     @wraps(func)
2022-06-13T13:19:42.2457643Z     def wrapper(self, *args, **kw):
2022-06-13T13:19:42.2457888Z         try:
2022-06-13T13:19:42.2458139Z             value = func(self, *args, **kw)
2022-06-13T13:19:42.2458411Z         except AssertionError as e:
2022-06-13T13:19:42.2458690Z >           raise AssertionError(e)
2022-06-13T13:19:42.2458966Z E           AssertionError: given
2022-06-13T13:19:42.2459247Z E           X = '1'
2022-06-13T13:19:42.2459470Z E               and
2022-06-13T13:19:42.2459734Z E           Y = '0'
2022-06-13T13:19:42.2460028Z E           X is '1' whereas Y is '0'
2022-06-13T13:19:42.2460194Z
2022-06-13T13:19:42.2460589Z /opt/hostedtoolcache/Python/3.7.13/x64/lib/python3.7/site-packages/sure/__init__.py:410: AssertionError
2022-06-13T13:19:42.2461020Z =============================== warnings summary ===============================

I guess VisibilityTimeout may too short for test case
https://github.com/spulec/moto/blob/9640ec20d125248ac91243591c7db50daabfd135/tests/test_sqs/test_sqs.py#L1638