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Method test_allow_none

traitlets/tests/test_traitlets.py:36–54  ·  view source on GitHub ↗
(self)

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34 self.assertEqual(self._default_value, self.obj.value) # type:ignore[attr-defined]
35
36 def test_allow_none(self) -> None:
37 if (
38 hasattr(self, "_bad_values")
39 and hasattr(self, "_good_values")
40 and None in self._bad_values
41 ):
42 trait = self.obj.traits()["value"] # type:ignore[attr-defined]
43 try:
44 trait.allow_none = True
45 self._bad_values.remove(None)
46 # skip coerce. Allow None casts None to None.
47 self.assign(None)
48 self.assertEqual(self.obj.value, None) # type:ignore[attr-defined]
49 self.test_good_values()
50 self.test_bad_values()
51 finally:
52 # tear down
53 trait.allow_none = False
54 self._bad_values.append(None)
55
56 def tearDown(self) -> None:
57 # restore default value after tests, if set

Callers

nothing calls this directly

Calls 5

assignMethod · 0.95
test_good_valuesMethod · 0.95
test_bad_valuesMethod · 0.95
traitsMethod · 0.80
appendMethod · 0.80

Tested by

no test coverage detected