你如何在python中生成動態(tài)（參數(shù)化）單元測試？我有一些測試數(shù)據(jù)，想為每個項目創(chuàng)建一個單元測試。我的第一個想法是這樣做：import unittest
l = [["foo", "a", "a",], ["bar", "a", "b"], ["lee", "b", "b"]]class TestSequence(unittest.TestCase):
def testsample(self):
for name, a,b in l:
print "test", name
self.assertEqual(a,b)if __name__ == '__main__':
unittest.main()這樣做的缺點是它在一次測試中處理所有數(shù)據(jù)。我想在運行中為每個項目生成一個測試。有什么建議？
3 回答
aluckdog
TA貢獻1847條經(jīng)驗 獲得超7個贊
這可以使用Metaclasses優(yōu)雅地解決：
import unittest l = [["foo", "a", "a",], ["bar", "a", "b"], ["lee", "b", "b"]]class TestSequenceMeta(type): def __new__(mcs, name, bases, dict): def gen_test(a, b): def test(self): self.assertEqual(a, b) return test for tname, a, b in l: test_name = "test_%s" % tname dict[test_name] = gen_test(a,b) return type.__new__(mcs, name, bases, dict)class TestSequence(unittest.TestCase): __metaclass__ = TestSequenceMetaif __name__ == '__main__': unittest.main()
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