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52 lines
1.7 KiB
52 lines
1.7 KiB
import unittest
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class TestEnum(unittest.TestCase):
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"""
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Verifies the repl() and str() behaviour of an example Enum
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Enums represent configuration values such as digitalio.Direction, digitalio.Pull etc.
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"""
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def setUp(self):
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"""Create an example Enum, mocking __module__ and __qualname__"""
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import adafruit_blinka
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class Cls(adafruit_blinka.Enum):
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pass
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Cls.one = Cls()
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Cls.two = Cls()
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# class refs would be implicitly populated correctly in a real module
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Cls.__module__ = "ho.hum"
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Cls.__qualname__ = "Example"
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self.Cls = Cls
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def test_iteritems(self):
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"""A subtype of Enum can list all attributes of its own type"""
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items = list(self.Cls.iteritems())
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self.assertEqual( items, [("one",self.Cls.one),("two",self.Cls.two),])
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def test_repr(self):
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"""A repr() call on an Enum gives its fully-qualified name"""
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name = "one"
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actual = repr(getattr(self.Cls, name))
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expected = "{}.{}.{}".format(self.Cls.__module__, self.Cls.__qualname__, name)
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self.assertEqual( actual, expected)
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def test_str(self):
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"""A str() call on an Enum performs the same as repr()"""
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self.assertEqual(str(self.Cls.one), repr(self.Cls.one))
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class TestDigitalInOut(unittest.TestCase):
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def test_context_manager(self):
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import digitalio
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from testing.board import default_pin
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"""Deinitialisation is triggered by __exit__() and should dispose machine.pin reference"""
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dio = digitalio.DigitalInOut(default_pin)
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self.assertIsNotNone(dio._pin)
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with dio:
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pass
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self.assertIsNone(dio._pin)
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