因此，如果测试对象没有这样一系列的属性，那么这种方法就不会正常地发挥其功能。
Therefore, if the test object does not have such a set of properties, the method will not function correctly.
这种测试方法使得诊断最终调试错误情况非常困难，在这样高的调用量下，最终调试错误情况可能很难再现或发生。
This testing methodology makes it very difficult to diagnose end debug error conditions, which may be very difficult to reproduce and happen under such high call volumes.
不幸的是，大部分的这些方法都没有相应的文档，这使得测试每个方法以检查它对用户界面的影响这样的一项任务相当烦人。
Unfortunately, most of these methods are not documented, making it a painful task to test each method to check the impact it has on the user interface.
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