def METHOD_NAME(self):
    """test concept retrieval of a Language"""
    language = self.dummy_language
    # Test unknown concept
    self.assertEqual(language.concept("12345"), dict({
        "code": "",
        "comment": ""
    }))
    # Test known concept
    self.assertEqual(language.concept("concept1"), dict({"code": "abc"}))
    self.assertEqual(language.concept("concept2"), dict(
        {"code": "abc", "comment": "My comment"}))
    self.assertEqual(language.concept("concept3"), dict(
        {"code": "", "comment": "", "not-implemented": True}))
    self.assertEqual(language.concept("concept4"),
                      dict({"code": ["line1", "line2"]}))