예제 #1
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 def test_equals(self):
     self.assertEqual(double_char('String'), 'SSttrriinngg')
예제 #2
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 def test_equals_2(self):
     self.assertEqual(double_char('Hello World'), 'HHeelllloo  WWoorrlldd')
예제 #3
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 def test_equals_3(self):
     self.assertEqual(double_char('1234!_ '), '11223344!!__  ')