pytest常用的异常处理方法
- try…except
- pytest.raise()
异常处理方法try…except
try:
#可能产生异常的代码块
except Error1，Error2,... as e:
#处理异常的代码块1
except Error3, Error4,... as e:
#处理异常的代码块2
except Exception:
#处理其他异常
异常处理方法pytest.raise()
- 可以捕获特定的异常
- 获取捕获的异常的细节(异常类型，异常信息)
- 发生异常，后面的代码将不会被执行
def test_raise():
with pytest.raises(ValueError,match='must be 0 or None'):
raise ValueError("value must be 0 or None")
def test_raise1():
with pytest.raises(ValueError) as exc_info:
raise ValueError("value must be 42")
assert exc_info.type is ValueError
assert exc_info.value.args[0] == "value must be 42"
