Unit testing 普罗米修斯单元测试总结

我试图为“摘要”编写一个单元测试，但不确定需要检查哪些变量

from prometheus_client import Counter, Summary
import unittest
import time
from prometheus_client import REGISTRY

my_summary = Summary('my_summary', 'A useful help string.')


def my_function():
    time.sleep(1)
    my_summary.observe(5)



class TestMyFunction(unittest.TestCase):
    def test_metric_incremented(self):
       print 'here'
       before =  REGISTRY.get_sample_value('my_summary')
       print 'summary before == ', before       
       my_function()       
       after =  REGISTRY.get_sample_value('my_summary')
       print 'summary after == ', after
       self.assertEqual(0, after - before)



if __name__ == '__main__':
    unittest.main()           

这是我的代码，我观察功能5秒钟。不确定这是否是正确的方法..任何测试示例都很好

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我试着关注这个博客-

你想要的时间序列是

my\u summary\u count

和

my\u summary\u sum