def test_fee_utils_indirectly(
w3, fee_history_rewards, expected_max_prio_calc
) -> None:
fail_max_prio_middleware = construct_error_generator_middleware(
{RPCEndpoint("eth_maxPriorityFeePerGas"): lambda *_: ''}
)
fee_history_result_middleware = construct_result_generator_middleware(
{RPCEndpoint('eth_feeHistory'): lambda *_: {'reward': fee_history_rewards}}
)
w3.middleware_onion.add(fail_max_prio_middleware, 'fail_max_prio')
w3.middleware_onion.inject(fee_history_result_middleware, 'fee_history_result', layer=0)
with pytest.warns(
UserWarning,
match="There was an issue with the method eth_maxPriorityFeePerGas. Calculating using "
"eth_feeHistory."
):
max_priority_fee = w3.eth.max_priority_fee
assert is_integer(max_priority_fee)
assert max_priority_fee == expected_max_prio_calc
# clean up
w3.middleware_onion.remove('fail_max_prio')
w3.middleware_onion.remove('fee_history_result')
def test_error_middleware(w3, method, expected):
def _callback(method, params):
return params[0]
w3.middleware_stack.add(construct_error_generator_middleware({
'test_endpoint': _callback,
}))
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
w3.manager.request_blocking(method, [expected])
else:
with pytest.raises(ValueError) as err:
w3.manager.request_blocking(method, [expected])
assert expected in str(err)
def test_error_middleware(w3, method, expected):
def _callback(method, params):
return params[0]
w3.middleware_stack.add(construct_error_generator_middleware({
'test_endpoint': _callback,
}))
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
w3.manager.request_blocking(method, [expected])
else:
with pytest.raises(ValueError) as err:
w3.manager.request_blocking(method, [expected])
assert expected in str(err)
def test_simple_cache_middleware_does_not_cache_error_responses(w3_base):
w3 = w3_base
w3.middleware_stack.add(construct_error_generator_middleware({
'fake_endpoint': lambda *_: 'msg-{0}'.format(str(uuid.uuid4())),
}))
w3.middleware_stack.add(construct_simple_cache_middleware(
cache_class=dict,
rpc_whitelist={'fake_endpoint'},
))
with pytest.raises(ValueError) as err_a:
w3.manager.request_blocking('fake_endpoint', [])
with pytest.raises(ValueError) as err_b:
w3.manager.request_blocking('fake_endpoint', [])
assert str(err_a) != str(err_b)
def test_simple_cache_middleware_does_not_cache_error_responses(w3_base):
w3 = w3_base
w3.middleware_onion.add(construct_error_generator_middleware({
'fake_endpoint': lambda *_: f'msg-{uuid.uuid4()}',
}))
w3.middleware_onion.add(construct_simple_cache_middleware(
cache_class=dict,
rpc_whitelist={'fake_endpoint'},
))
with pytest.raises(ValueError) as err_a:
w3.manager.request_blocking('fake_endpoint', [])
with pytest.raises(ValueError) as err_b:
w3.manager.request_blocking('fake_endpoint', [])
assert str(err_a) != str(err_b)
def test_time_based_cache_middleware_does_not_cache_error_response(
w3_base,
time_cache_middleware):
w3 = w3_base
counter = itertools.count()
def mk_error(method, params):
return "error-number-{0}".format(next(counter))
w3.middleware_stack.add(construct_error_generator_middleware({
'fake_endpoint': mk_error,
}))
w3.middleware_stack.add(time_cache_middleware)
with pytest.raises(ValueError) as err:
w3.manager.request_blocking('fake_endpoint', [])
assert 'error-number-0' in str(err)
with pytest.raises(ValueError) as err:
w3.manager.request_blocking('fake_endpoint', [])
assert 'error-number-1' in str(err)
def test_time_based_cache_middleware_does_not_cache_error_response(
w3_base,
time_cache_middleware):
w3 = w3_base
counter = itertools.count()
def mk_error(method, params):
return "error-number-{0}".format(next(counter))
w3.middleware_stack.add(construct_error_generator_middleware({
'fake_endpoint': mk_error,
}))
w3.middleware_stack.add(time_cache_middleware)
with pytest.raises(ValueError) as err:
w3.manager.request_blocking('fake_endpoint', [])
assert 'error-number-0' in str(err)
with pytest.raises(ValueError) as err:
w3.manager.request_blocking('fake_endpoint', [])
assert 'error-number-1' in str(err)
def test_latest_block_cache_middleware_does_not_cache_error_response(
w3_base, block_data_middleware, latest_block_based_cache_middleware):
counter = itertools.count()
w3 = w3_base
def error_cb(method, params):
next(counter)
return "the error message"
w3.middleware_stack.add(block_data_middleware)
w3.middleware_stack.add(
construct_error_generator_middleware({
'fake_endpoint': error_cb,
}))
w3.middleware_stack.add(latest_block_based_cache_middleware)
with pytest.raises(ValueError):
w3.manager.request_blocking('fake_endpoint', [])
with pytest.raises(ValueError):
w3.manager.request_blocking('fake_endpoint', [])
assert next(counter) == 2
def test_latest_block_cache_middleware_does_not_cache_error_response(
w3_base,
block_data_middleware,
latest_block_based_cache_middleware):
counter = itertools.count()
w3 = w3_base
def error_cb(method, params):
next(counter)
return "the error message"
w3.middleware_stack.add(block_data_middleware)
w3.middleware_stack.add(construct_error_generator_middleware({
'fake_endpoint': error_cb,
}))
w3.middleware_stack.add(latest_block_based_cache_middleware)
with pytest.raises(ValueError):
w3.manager.request_blocking('fake_endpoint', [])
with pytest.raises(ValueError):
w3.manager.request_blocking('fake_endpoint', [])
assert next(counter) == 2
