Python参数化框架parameterized+单元测试框架unittest & HTMLReport & nose

背景

为了更好地管理自动化测试用例，同时对用例输入进行参数化，并且生成好看的测试报告，对题目中的几个框架进行了组合使用。

思路

1. parameterized 参数化让单元测试更好管理用例输入变量
2. unittest便于管理测试用例
3. HTMLReport生成便于查看的HTML测试报告
4. nose让用例更好编写，更好执行

代码

# test_math.py
# best suitable for nose framework: nosetests -v test_math.py
from nose.tools import assert_equal
from parameterized import parameterized, parameterized_class

import unittest
import math
import HTMLReport


@parameterized([
    (2, 2, 4),
    (2, 3, 8),
    (1, 9, 1),
    (0, 9, 0),
])
def test_pow(base, exponent, expected):
    assert_equal(math.pow(base, exponent), expected)


class TestMathUnitTest(unittest.TestCase):
    @parameterized.expand([
       ("negative", -1.5, -2.0),
       ("integer", 1, 1.0),
       ("large fraction", 1.6, 1),
    ])
    def test_floor(self, name, input, expected):
        assert_equal(math.floor(input), expected)


@parameterized_class(('a', 'b', 'expected_sum', 'expected_product'), [
   (1, 2, 3, 2),
   (5, 5, 10, 25),
])
class TestMathClass(unittest.TestCase):
    def test_add(self):
        assert_equal(self.a + self.b, self.expected_sum)

    def test_multiply(self):
        assert_equal(self.a * self.b, self.expected_product)


@parameterized_class([
   {"a": 3, "expected": 2},
   {"b": 5, "expected": -4},
])
class TestMathClassDict(unittest.TestCase):
    a = 1
    b = 1

    def test_subtract(self):
        assert_equal(self.a - self.b, self.expected)


if __name__ == '__main__':
    cases = unittest.defaultTestLoader.discover('./', pattern='test_math.py')
    runner = HTMLReport.TestRunner(report_file_name='test',
                                   output_path='../report',
                                   description='no descriptions',
                                   thread_count=1,
                                   thread_start_wait=3,
                                   sequential_execution=False,
                                   lang='en'
                                   )
    runner.run(cases)

运行

方法一

python test_math.py

运行结果

方法二

nosetests -v test_math.py

运行结果

参考

• parameterized模块：https://pypi.org/project/parameterized/
• unittest模块：https://docs.python.org/3/library/unittest.html
• HTMLReport模块：https://pypi.org/project/HTMLReport/