prometheus單元測試總結

Question

我試圖編寫'摘要'的單元測試，但不知道我需要檢查哪些變量？

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()   

這是我的代碼我觀察功能5秒。不知道這是否是正確的做法..任何測試的例子都會很棒。

我嘗試下面這個博客 - https://www.robustperception.io/how-to-unit-test-prometheus-instrumentation/

Answer 1

你想要的時間序列my_summary_count和my_summary_sum。