def test_two_positive_sub(self):
result = MathMethod(3, 2).subb()
expected = 11
try:
self.assertEqual(expected, result)
except AssertionError as e:
print("这是个断言错误{}".format(e))
raise e
print("两个正数相减的值是{}，预期结果是{}".format(result, expected))
def test_abs_positive_negitve(self): #第一条执行的用例
result = MathMethod(2, -5).a_b_s()
excepted = 7
try:
self.assertEqual(result, excepted)
except AssertionError as e:
print("出现断言错误", e)
raise e
print("一正一负两个数相减的绝对值是：{}".format(result))
def test_abs_two_negtive(self): #第二条执行的用例
result = MathMethod(-2, -5).a_b_s()
expected = 3
try:
self.assertEqual(result, expected)
except AssertionError as e:
print("出现断言错误", e)
raise e
print("两个负数相减的绝对值是：{}".format(result))
def test_abs_two_positive(self): #第三条执行的用例
result = MathMethod(2, 3).a_b_s()
expected = 1
try:
TestAbs().assertEqual(result, expected)
except AssertionError as e:
print("出现断言错误", e)
raise e
print("两个正数相减的绝对值是：{}".format(result))
def test_positive_negtive_sub(self):
result = MathMethod(2, -4).subb()
expected = 6
try:
self.assertEqual(expected, result)
except AssertionError as e:
print("这是个断言错误{}".format(e))
raise e
print("一正一负相减的值是{}，预期结果是{}".format(result, expected))
def test_add_negtive_positive(self): #一正一负相加
result = MathMethod(-1, 3).add()
expected = 2
try:
self.assertEqual(expected, result) #断言
except AssertionError as e:
print("断言出错{}".format(e))
raise e
print("一正一负相加的结果是：{}".format(result))
def test_add_two_negtive(self): #两个负数相加
result = MathMethod(-1, -3).add()
# expected = 1
try:
self.assertIsNotNone(result)
# self.assertEqual(expected,result) #断言
except AssertionError as e:
print("断言出错{}".format(e))
raise e
print("两个负数相加的结果是：{}".format(result))
def test_add_two_zero(self): #必须以test开头，不能传参
result = MathMethod(0, 0).add() #两个0相加
expected = 0 #(期望结果)
try:
# self.assertTrue(result)
self.assertEqual(expected, result) #断言
# self.assertFalse(result)
except AssertionError as e:
print("断言出错{}".format(e)) #处理
raise e #抛出异常，否则不抛出直接执行，有异常时已经处理了就显示通过了
print("两个0相加的结果是：{}".format(result))