63 lines
1.5 KiB
Python
63 lines
1.5 KiB
Python
from typing import Type
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import pytest
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from pyo3_pytests import pyclasses
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def test_empty_class_init(benchmark):
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benchmark(pyclasses.EmptyClass)
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class EmptyClassPy:
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pass
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def test_empty_class_init_py(benchmark):
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benchmark(EmptyClassPy)
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def test_iter():
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i = pyclasses.PyClassIter()
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assert next(i) == 1
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assert next(i) == 2
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assert next(i) == 3
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assert next(i) == 4
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assert next(i) == 5
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with pytest.raises(StopIteration) as excinfo:
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next(i)
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assert excinfo.value.value == "Ended"
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class AssertingSubClass(pyclasses.AssertingBaseClass):
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pass
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def test_new_classmethod():
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# The `AssertingBaseClass` constructor errors if it is not passed the
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# relevant subclass.
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_ = AssertingSubClass(expected_type=AssertingSubClass)
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with pytest.raises(ValueError):
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_ = AssertingSubClass(expected_type=str)
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class ClassWithoutConstructorPy:
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def __new__(cls):
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raise TypeError("No constructor defined")
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@pytest.mark.parametrize(
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"cls", [pyclasses.ClassWithoutConstructor, ClassWithoutConstructorPy]
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)
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def test_no_constructor_defined_propagates_cause(cls: Type):
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original_error = ValueError("Original message")
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with pytest.raises(Exception) as exc_info:
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try:
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raise original_error
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except Exception:
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cls() # should raise TypeError("No constructor defined")
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assert exc_info.type is TypeError
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assert exc_info.value.args == ("No constructor defined",)
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assert exc_info.value.__context__ is original_error
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