如何从单元测试中获取失败、成功、错误的测试用例名称。 runner.TextTestResult？答案

【问题标题】：How to get failed, succes, error test cases names from the unittest. runner.TextTestResult?如何从单元测试中获取失败、成功、错误的测试用例名称。 runner.TextTestResult？
【发布时间】：2021-11-30 13:23:54
【问题描述】：

从下面的代码中，如何从结果变量中获取失败、成功、错误的测试用例名称？许多失败的、总的测试运行和所有都可能来自单元测试。 runner.TextTestResult。但我也想知道失败的测试用例名称，即 Test_Sample1.test_2

import unittest

class Test_Sample1(unittest.TestCase):

    def test_1(self):
        pass

    def test_2(self):
        self.assertEqual(1,2)
    
    def test_3(self):
        pass


class Test_Sample2(unittest.TestCase):

    def test_1(self):
        pass

    def test_2(self):
        self.assertEqual(1,2)
    
    def test_3(self):
        pass

def main():
    unitt = unittest.main (verbosity = 2, exit=False)
    result = unitt.result

    print(f'wasSuccessful {result.wasSuccessful()}')
    print(f'errors {len(result.errors)}')
    print(f'failures {len(result.failures)}')
    print(f'testsRun {result.testsRun}')


if __name__ == '__main__':
    main()

【问题讨论】：

标签： python-unittest

【解决方案1】：

您可以使用自定义TestRunner + TestResult 并根据需要进行配置。只是一个例子：

import unittest
from unittest.runner import TextTestResult, TextTestRunner


class Test1(unittest.TestCase):
    def test_1(self):
        pass

    def test_2(self):
        self.assertEqual(1, 2)


class Test2(unittest.TestCase):
    def test_1(self):
        self.assertEqual(1, 2)

    @unittest.skip('skip example')
    def test_2(self):
        pass


def main():
    class CustomResult(TextTestResult):
        def __init__(self, *args, **kwargs):
            super(CustomResult, self).__init__(*args, **kwargs)
            self.success = []

        def addSuccess(self, test):
            super(CustomResult, self).addSuccess(test)
            self.success.append(test)

    unit = unittest.main(verbosity=2, exit=False, testRunner=TextTestRunner(resultclass=CustomResult))
    result = unit.result  # type: CustomResult
    # just do here all what you need...
    print('success:')
    for test in result.success:
        print(test)
    print('*' * 20 + '\n')

    print('skipped:')
    for test, reason in result.skipped:
        print('{}. reason: {}'.format(test, reason))
    print('*' * 20 + '\n')

    print('failures:')
    for test, trace in result.failures:
        print(test)
        # print(trace) ...if you need
    print('*' * 20 + '\n')

    for error in result.errors:
        # blablabla
        continue

结果：

success:
test_1 (__main__.Test1)
********************

skipped:
test_2 (__main__.Test2). reason: skip example
********************

failures:
test_2 (__main__.Test1)
test_1 (__main__.Test2)
********************

【讨论】：