如何構建單元測試

Question

我有自定義事件記錄器，我想測試它。

[Test] 
     public void AddLogWithExceptionAndEventLogEntryTypeTest() 
     { 

     const string loggerName = "mockLoggerName"; 
     var logger = new MyLogger(loggerName); 

     System.Diagnostics.EventLog log = new System.Diagnostics.EventLog("System"); 
     string logValue = Guid.NewGuid().ToString(); 
     logger.AddEntry(new Exception(logValue),EventLogEntryType.Error); 


     foreach (
      EventLogEntry entry in log.Entries) 
     { 
      if (entry.Message.ToUpper().Contains(logValue)) 
      { 
       //what can is do ? 
      } 
     } 
    } 

什麼斷言用於提供信息，該條目被添加？

Answer 1

您是否打算通過日誌查看剛添加的文本？那麼怎麼樣：

bool foundOne = false; 
foreach (EventLogEntry entry in log.Entries) 
    { 
     if (entry.Message.ToUpper().Contains(logValue)) 
     { 
      foundOne = true; 
     } 
    } 

Assert(foundOne); 

就個人而言，我反而可能嘲笑記錄器，而是斷言嘲弄記錄器的方法如預期被稱爲。