50 lines
1.1 KiB
Python
50 lines
1.1 KiB
Python
import pytest
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from checkeddeco import checked
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def test_field_descriptor_validation_type_error():
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@checked
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class Cat:
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name: str
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weight: float
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with pytest.raises(TypeError) as e:
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felix = Cat(name='Felix', weight=None)
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assert str(e.value) == 'None is not compatible with weight:float'
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def test_field_descriptor_validation_value_error():
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@checked
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class Cat:
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name: str
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weight: float
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with pytest.raises(TypeError) as e:
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felix = Cat(name='Felix', weight='half stone')
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assert str(e.value) == "'half stone' is not compatible with weight:float"
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def test_constructor_attribute_error():
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@checked
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class Cat:
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name: str
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weight: float
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with pytest.raises(AttributeError) as e:
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felix = Cat(name='Felix', weight=3.2, age=7)
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assert str(e.value) == "'Cat' has no attribute 'age'"
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def test_field_invalid_constructor():
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with pytest.raises(TypeError) as e:
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@checked
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class Cat:
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name: str
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weight: None
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assert str(e.value) == "'weight' type hint must be callable" |