prometheus单元测试摘要

Question

我正在尝试为“摘要”编写单元测试。但不确定我需要检查哪些变量？

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。不确定这是否是正确的方法。任何测试示例都会很棒。

我尝试关注此博客 - https://www.robustperception.io/how-to-unit-test-prometheus-instrumentation/

Answer 1

您想要的时间序列为2.45.0和my_summary_count。