Pythonunittest-4

Posted 2020-11-09 下辈子做一只猫

#练习1：
import random
import unittest
from TestCalc import TestCalcFunctions
class TestSequenceFunctions(unittest.TestCase):
    def setUp(self):
        self.seq = range(10)

    def tearDown(self):
        pass

    def test_choice(self):
        # 从序列seq中随机选取一个元素
        element = random.choice(self.seq)
        # 验证随机元素确实属于列表中
        self.assertTrue(element in self.seq)

    def test_sample(self):
        # 验证执行的语句是否抛出了异常
        with self.assertRaises(ValueError):
            random.sample(self.seq, 20)
        for element in random.sample(self.seq, 5):
            self.assertTrue(element in self.seq)


class TestDictValueFormatFunctions(unittest.TestCase):
    def setUp(self):
        self.seq = range(10)

    def tearDown(self):
        pass

    def test_shuffle(self):
        # 随机打乱原seq的顺序
        random.shuffle(self.seq)
        self.seq.sort()
        self.assertEqual(self.seq, range(10))
        # 验证执行函数时抛出了TypeError异常
        self.assertRaises(TypeError, random.shuffle, (1, 2, 3))

if __name__ == ‘__main__‘:
    # 根据给定的测试类，获取其中的所有以“test”开头的测试方法，并返回一个测试套件
    suite1 = unittest.TestLoader().loadTestsFromTestCase(TestSequenceFunctions)
    suite2 = unittest.TestLoader().loadTestsFromTestCase(TestDictValueFormatFunctions)
    suite3 = unittest.TestLoader().loadTestsFromTestCase(TestCalcFunctions)
    # 将多个测试类加载到测试套件中
    suite = unittest.TestSuite([suite2, suite1,suite3])  #通过调整suit2和suite1的顺序，可以设定执行顺序
    # 设置verbosity = 2，可以打印出更详细的执行信息
    unittest.TextTestRunner(verbosity = 2).run(suite)

#练习2：
#会生成一个test.html文件
import unittest
import HTMLTestRunner
import math

#被测试类
class Calc(object):

    def add(self, x, y, *d):
        # 加法计算
        result = x + y
        for i in d:
            result += i
        return result

    def sub(self, x, y, *d):
        # 减法计算
        result = x - y
        for i in d:
            result -= i
        return result

#单元测试
class SuiteTestCalc(unittest.TestCase):
    def setUp(self):
        self.c = Calc()

    @unittest.skip("skipping")
    def test_Sub(self):
        print "sub"
        self.assertEqual(self.c.sub(100, 34, 6), 61, u‘求差结果错误！‘)

    def testAdd(self):
        print "add"
        self.assertEqual(self.c.add(1, 32, 56), 89, u‘求和结果错误！‘)


class SuiteTestPow(unittest.TestCase):
    def setUp(self):
        self.seq = range(10)

    # @unittest.skipIf()
    def test_Pow(self):
        print "Pow"
        self.assertEqual(pow(6, 3), 216, u‘求幂结果错误！‘)

    def test_hasattr(self):
        print "hasattr"
    # 检测math模块是否存在pow属性
        self.assertTrue(hasattr(math, ‘pow1‘), u"检测的属性不存在！")

if __name__ == "__main__":
    suite1 = unittest.TestLoader().loadTestsFromTestCase(SuiteTestCalc)
    suite2 = unittest.TestLoader().loadTestsFromTestCase(SuiteTestPow)
    suite = unittest.TestSuite([suite1, suite2])
    #unittest.TextTestRunner(verbosity=2).run(suite)
    filename = "c:\\test.html"  # 定义个报告存放路径，支持相对路径。
    # 以二进制方式打开文件，准备写
    fp = file(filename, ‘wb‘)
    # 使用HTMLTestRunner配置参数，输出报告路径、报告标题、描述，均可以配 
    runner = HTMLTestRunner.HTMLTestRunner(stream = fp,
        title = u‘测试报告‘, description = u‘测试报告内容‘)
    # 运行测试集合
    runner.run(suite)

#练习3：
import unittest
import random

# 被测试类
class MyClass(object):
    @classmethod
    def sum(self, a, b):
        return a + b

    @classmethod
    def div(self, a, b):
        return a / b

    @classmethod
    def retrun_None(self):
        return None

# 单元测试类
class MyTest(unittest.TestCase):

    # assertEqual()方法实例
    def test_assertEqual(self):
        # 断言两数之和的结果
        try:
            a, b = 1, 2
            sum = 3
            self.assertEqual(a + b, sum, ‘断言失败，%s + %s != %s‘ %(a, b, sum))
        except AssertionError, e:
            print e

    # assertNotEqual()方法实例
    def test_assertNotEqual(self):
        # 断言两数之差的结果
        try:
            a, b = 5, 2
            res = 1
            self.assertNotEqual(a - b, res, ‘断言失败，%s - %s != %s‘ %(a, b, res))
        except AssertionError, e:
            print e

    # assertTrue()方法实例
    def test_assertTrue(self):
        # 断言表达式的为真
        try:
            self.assertTrue(1 == 1, "表达式为假")
        except AssertionError, e:
            print e

    # assertFalse()方法实例
    def test_assertFalse(self):
        # 断言表达式为假
        try:
            self.assertFalse(3 == 2, "表达式为真")
        except AssertionError, e:
            print e

    # assertIs()方法实例
    def test_assertIs(self):
        # 断言两变量类型属于同一对象
        try:
            a = 12
            b = a
            self.assertIs(a, b, "%s与%s不属于同一对象" %(a, b))
        except AssertionError, e:
            print e

    # test_assertIsNot()方法实例
    def test_assertIsNot(self):
        # 断言两变量类型不属于同一对象
        try:
            a = 12
            b = "test"
            self.assertIsNot(a, b, "%s与%s属于同一对象" %(a, b))
        except AssertionError, e:
            print e

    # assertIsNone()方法实例
    def test_assertIsNone(self):
        # 断言表达式结果为None
        try:
            result = MyClass.retrun_None()
            self.assertIsNone(result, "not is None")
        except AssertionError, e:
            print e

    # assertIsNotNone()方法实例
    def test_assertIsNotNone(self):
        # 断言表达式结果不为None
        try:
            result = MyClass.sum(2, 5)
            self.assertIsNotNone(result, "is None")
        except AssertionError, e:
            print e

    # assertIn()方法实例
    def test_assertIn(self):
        # 断言对象B是否包含在对象A中
        try:
            strA = "this is a test"
            strB = "is"
            self.assertIn(strA, strB, "%s不包含在%s中" %(strB, strA))
        except AssertionError, e:
            print e

    # assertNotIn()方法实例
    def test_assertNotIn(self):
        # 断言对象B不包含在对象A中
        try:
            strA = "this is a test"
            strB = "Selenium"
            self.assertNotIn(strA, strB, "%s包含在%s中" %(strB, strA))
        except AssertionError, e:
            print e

    # assertIsInstance()方法实例
    def test_assertIsInstance(self):
        # 测试对象A的类型是否是指定的类型
        try:
            x = MyClass
            y = object
            self.assertIsInstance(x, y, "%s的类型不是%s".decode("utf-8") %(x, y))
        except AssertionError, e:
            print e

    # assertNotIsInstance()方法实例
    def test_assertNotIsInstance(self):
        # 测试对象A的类型不是指定的类型
        try:
            a = 123
            b = str
            self.assertNotIsInstance(a, b, "%s的类型是%s" %(a, b))
        except AssertionError, e:
            print e

    # assertRaises()方法实例
    def test_assertRaises(self):
        # 测试抛出的指定的异常类型
        # assertRaises(exception)
        with self.assertRaises(ValueError) as cm:
            random.sample([1,2,3,4,5], "j")
        # 打印详细的异常信息
        #print "===", cm.exception

        # assertRaises(exception, callable, *args, **kwds)
        try:
            self.assertRaises(ZeroDivisionError, MyClass.div, 3, 0)
        except ZeroDivisionError, e:
            print e

    # assertRaisesRegexp()方法实例
    def test_assertRaisesRegexp(self):
        # 测试抛出的指定异常类型，并用正则表达式具体验证
        # assertRaisesRegexp(exception, regexp)
        with self.assertRaisesRegexp(ValueError, ‘literal‘) as ar:
            int("xyz")
        # 打印详细的异常信息
        #print ar.exception
        # 打印正则表达式
        #print "re:",ar.expected_regexp

        # assertRaisesRegexp(exception, regexp, callable, *args, **kwds)
        try:
            self.assertRaisesRegexp(ValueError, "invalid literal for.*XYZ‘$",int,‘XYZ‘)
        except AssertionError, e:
            print e


if __name__ == ‘__main__‘:
    # 执行单元测试
    unittest.main()