我无法弄清楚如何在python脚本中运行单个单元测试并收集结果。
场景:我有一系列测试可以检查产生不同对象的各种统计分布的各种方法。测试有时会失败,因为他们应该给我基本上检查特定种类的随机性。我想从脚本甚至解释器中反复运行测试并收集结果以供进一步分析。
假设我有一个模块myTest.py:
class myTest(unittest.TestCase):
def setup(self):
...building objects, etc....
def testTest1(self):
..........
def testTest2(self):
..........
基本上我需要:
我最接近的是(使用类似问题的代码):
from unittest import TextTestRunner, TestSuite
runner = TextTestRunner(verbosity = 2)
tests = ['testTest1']
suite = unittest.TestSuite(map(myTest, tests))
runner.run(suite)
但这不起作用,因为:
runner.run(suite)
未运行设置方法
和
我无法捕获它在testTest1失败时抛出的异常
答案 0 :(得分:2)
您只需要将要运行多次的测试添加到套件中。
这是一个完整的代码示例。您还可以see this code running in an interactive Python console to prove that it does actually work。
import unittest
import random
class NullWriter(object):
def write(*_, **__):
pass
def flush(*_, **__):
pass
SETUP_COUNTER = 0
class MyTestCase(unittest.TestCase):
def setUp(self):
global SETUP_COUNTER
SETUP_COUNTER += 1
def test_one(self):
self.assertTrue(random.random() > 0.3)
def test_two(self):
# We just want to make sure this isn't run
self.assertTrue(False, "This should not have been run")
def suite():
tests = []
for _ in range(100):
tests.append('test_one')
return unittest.TestSuite(map(MyTestCase, tests))
results = unittest.TextTestRunner(stream=NullWriter()).run(suite())
print dir(results)
print 'setUp was run', SETUP_COUNTER, 'times'