我正在尝试运行以下测试
self.assertRaises(Exception,lambda:
unit_test.testBasic())
,其中
test.testBasic()
是
class IsPrimeTest(unittest.TestCase):
def assertRaises(self,exception,callable,*args,**kwargs):
print('dfdf')
temp = callable
super().assertRaises(exception,temp,*args,**kwargs)
def testBasic_helper(self):
self.failIf(is_prime(2))
self.assertTrue(is_prime(1))
其中prime是一个函数,
但在
self.assertRaises(Exception,lambda:
unit_test.testBasic())
lambda函数之后不会抛出异常 测试
def testBasic_helper(self):
self.failIf(is_prime(2))
self.assertTrue(is_prime(1))
失败 有人能解决这个问题吗?
我会再次尝试解释我的问题,因为在我的第一篇文章中我没有很好地解释它 所以这是源头 is_prime(x)只是检查素数的函数
def is_prime(数字): PRIME,NOT_PRIME = not is_prime.broken,is_prime.broken 如果数字== 2: 返回PRIME
if not isinstance(number, int) and not isinstance(number, float):
raise Exception
if number % 2 == 0 or number < 2 or isinstance(number, float):
return NOT_PRIME
max = int(number**0.5) + 1
for i in range(3, max, 2):
if number % i == 0:
return NOT_PRIME
return PRIME
is_prime.broken = False
类IsPrimeTest(unittest.TestCase):
def testBasic_helper(self): self.failIf(is_prime(1)) self.assertTrue(is_prime(2)) self.failIf(is_prime(4)) self.failIf(is_prime(6)) self.assertTrue(is_prime(7)) def testBasic(self): return self.testBasic_helper() def testNegative(self): self.failIf(is_prime(-2)) self.failIf(is_prime(-11 ** 3)) def testNonNumber(self): self.assertRaises(Exception,is_prime,'asd') self.assertRaises(Exception,is_prime,self.__class__.__name__) def testRandom(self): for i in range(0,10000): rand = randint(-10000,10000) self.assertEquals(prime(rand),is_prime(rand))
这里是Test,我们可以说测试测试程序是一个测试 - 测试测试
class MetaProgrammingTest(unittest.TestCase): def test_decorator(self): 来自p10 import unit_converter
def celsius_function(val):
return val
self.assertTrue(hasattr(unit_converter(1,2),'__call__'))
decorated = unit_converter(1.8, 32)(celsius_function)
self.assertTrue(hasattr(decorated, '__call__'))
self.assertAlmostEquals(64.4, decorated(val = 18.0))
def test_unit_test(self):
import p10
from p10sample import is_prime as is_prime_actual
unit_test = p10.IsPrimeTest('testBasic')
unit_test.setUp()
is_prime_actual.broken = False
self.assertEquals(None, unit_test.testBasic())
self.assertEquals(None, unit_test.testNegative())
self.assertEquals(None, unit_test.testNonNumber())
self.assertEquals(None, unit_test.testRandom())
is_prime_actual.broken = True
self.assertRaises(Exception,lambda: unit_test.testBasic())
self.assertRaises(Exception, lambda: unit_test.testNegative())
self.assertRaises(Exception, lambda: unit_test.testRandom())
unit_test.tearDown()
我不能改变第二次测试 - 测试的测试
所以表达式self.assertRaises(Exception,lambda:unit_test.testBasic())
必须保持不变
我的问题是当testBasic()函数失败时,例如我们有
self.assertFailIf(is_prime(2)),self.assertfailIf抛出异常,unit_test.testBasic()
抛出相同的异常到上部范围,但lambda:unit_test.testBasic()不会抛出异常
支票
self.assertRaises(Exception,lambda:unit_test.testBasic())
失败
我的问题是如何使testBasic()函数使lambda:unit_test.testBasic()能够完成exceotion并且selfassertRaises不会失败,任何想法?
答案 0 :(得分:1)
我是否理解你是因为你问为什么testBasic_helper方法在测试运行时不会引发异常? 我不明白为什么它应该,is_prime应该返回一个bool值,测试检查失败。如果测试失败,它就会失败,你的代码和unittest框架都不会抛出异常。
P.S。 “unit_test.testBasic”已经是可调用的,“lambda:unit_test.testBasic()”是多余的,所以你可以编写self.assertRaises(Exception,unit_test.testBasic)。