使用带有 Python mock 的生成器来复制服务器响应
Using a generator with Python mock to replicate server responses
我想使用一个列表(转换为生成器)作为我的 API 调用(使用 unittest.mock
)的模拟。我的函数是:
def monitor_order(order_id)
order_info = client.get_order_status(order_id)
order_status = order_info['status']
while order_status != 'filled':
print('order_status: ', order_status)
time.sleep(5)
order_info = client.get_order_status(order_id)
order_status = order_info['status']
return order_info
我的测试函数是:
@patch('my_package.client.get_order_status')
def test_monitor_order(mocked_get_order_status):
order_states = [
dict(status='open'),
dict(status='open'),
dict(status='filled'),
]
# Make into a generator
status_changes = (status for status in order_states)
mocked_get_order_status.return_value = next(order_states)
# Execute function to test
monitor_order("dummy_order")
但是我看到执行测试的时候状态一直是'open':
order_status: open
order_status: open
order_status: open
我想我明白为什么它是错误的,但我怎样才能正确实施它?
为了达到你想要的效果,你可以按如下方式重写你的测试:
@patch('my_package.client.get_order_status')
def test_monitor_order(mocked_get_order_status):
order_states = [
dict(status='open'),
dict(status='open'),
dict(status='filled'),
]
mocked_get_order_status.side_effect = order_states
# Execute function to test
monitor_order("dummy_order")
我想使用一个列表(转换为生成器)作为我的 API 调用(使用 unittest.mock
)的模拟。我的函数是:
def monitor_order(order_id)
order_info = client.get_order_status(order_id)
order_status = order_info['status']
while order_status != 'filled':
print('order_status: ', order_status)
time.sleep(5)
order_info = client.get_order_status(order_id)
order_status = order_info['status']
return order_info
我的测试函数是:
@patch('my_package.client.get_order_status')
def test_monitor_order(mocked_get_order_status):
order_states = [
dict(status='open'),
dict(status='open'),
dict(status='filled'),
]
# Make into a generator
status_changes = (status for status in order_states)
mocked_get_order_status.return_value = next(order_states)
# Execute function to test
monitor_order("dummy_order")
但是我看到执行测试的时候状态一直是'open':
order_status: open
order_status: open
order_status: open
我想我明白为什么它是错误的,但我怎样才能正确实施它?
为了达到你想要的效果,你可以按如下方式重写你的测试:
@patch('my_package.client.get_order_status')
def test_monitor_order(mocked_get_order_status):
order_states = [
dict(status='open'),
dict(status='open'),
dict(status='filled'),
]
mocked_get_order_status.side_effect = order_states
# Execute function to test
monitor_order("dummy_order")