Python3-接口自动化-10-记一次HTMLTestReportCNs.py中float division by zero排查

时间：2021-01-07 11:44:09 阅读：0 评论：0 收藏：0 [点我收藏+]

标签：workspace ber 问题 png rip epo load bsp 代码块

一、报错内容:

Traceback (most recent call last): 
  File "D:\Ddworkspace\workspace\DdScript\dmall-small-program\autoPyWxInterface\run_start_auto.py", line 39, in <module> 
    runner.run(discover) 
  File "D:\Ddworkspace\workspace\DdScript\dmall-small-program\autoPyWxInterface\common\HTMLTestReportCNs.py", line 549, in run 
    self.generateReport(test, result) 
  File "D:\Ddworkspace\workspace\DdScript\dmall-small-program\autoPyWxInterface\common\HTMLTestReportCNs.py", line 596, in generateReport 
    report_attrs = self.getReportAttributes(result) 
  File "D:\Ddworkspace\workspace\DdScript\dmall-small-program\autoPyWxInterface\common\HTMLTestReportCNs.py", line 584, in getReportAttributes 
    self.passrate = str("%.2f%%" % (float(result.success_count) / float(result.success_count + result.failure_count + result.error_count) * 100)) 
ZeroDivisionError: float division by zero

二、错误分析：float division by zero 分母为0

2.1 result.success_count + result.failure_count + result.error_count等于0，也就是说成功case，失败case，错误case都为0

2.2 正常情况，只要我们代码没问题，这三个必有一个字段值大于0

所以判断代码出错：原因可能是没有运行test开头的测试用例

三、寻找问题步骤

3.1 result.success_count + result.failure_count + result.error_count这三种值均来自于result

3.2 追踪result最初入口

3.3 入口：runner.run(discover)

四、Debug定位问题

4.1 在runner.run(discover) 打断点

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4.2 debug后，我们可以看到discover中内容

<unittest.suite.TestSuite tests=[<unittest.suite.TestSuite tests=[]>, <unittest.suite.TestSuite tests=[<unittest.suite.TestSuite tests=[]>, <unittest.suite.TestSuite tests=[]>]>, <unittest.suite.TestSuite tests=[]>, <unittest.suite.TestSuite tests=[]>, <unittest.suite.TestSuite tests=[]>]>

图

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