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我有一個單元測試用於強制引發異常。拋出異常,但由於某種原因,我的單元測試語句沒有捕獲它,並且意外失敗。Python:在單元測試中assertRaises錯誤...沒有被捕獲的異常
這裏是單元測試:
def test900_001_ShouldRaiseExceptionDuplicateID(self):
hist = projecthistory.ProjectHistory()
myProject = project.Project(id = 42, locR = 10, locP = 15, locA = 30, eP = 200, eA= 210)
hist.addProject(myProject)
myProject2 = project.Project(id = 42, locR = 15, locP = 25, locA = 40, eP = 300, eA = 410)
self.assertRaises(ValueError, projecthistory.ProjectHistory, hist.addProject(myProject2))
下面是代碼,這涉及:
def addProject(self, proj):
duplicate = False
checkId = proj.getId()
#check to see if that id is already in the container if so, raise ValueError
#append project to container
for project in self.theContainer:
if (project.getId() == checkId):
duplicate = True
break
if(duplicate == False):
self.theContainer.append(proj)
else:
raise ValueError("ProjectHistory.addProject: Duplicate ID found. Project not added to repository.")
return len(self.theContainer)
基本上,項目被添加到一個稱爲theContainer列表。但是,如果兩個ID相同,則不會添加副本。通過在單元測試中強制添加兩個具有相同ID的項目,會引發異常。
這是我得到的回溯:
Traceback (most recent call last):
File "C:\Users\blah\workspace\blahID\CA06\test\projecthistoryTest.py", line 46, in test900_001_ShouldRaiseExceptionDuplicateID
self.assertRaises(ValueError, projecthistory.ProjectHistory, hist.addProject(myProject2))
File "C:\Users\blah\workspace\blahID\CA06\prod\projecthistory.py", line 38, in addProject
raise ValueError("ProjectHistory.addProject: Duplicate ID found. Project not added to repository.")
ValueError: ProjectHistory.addProject: Duplicate ID found. Project not added to repository.
可能的問題是,在assertRaises第三個參數? (hist.addProject(myProject2))
Azmazing!這改正了一切。 – SwaroopGiwali