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83a8a977a7
This commit adds `error_already_set::matches()` convenience method to check if the exception trapped by `error_already_set` matches a given Python exception type. This will address #700 by providing a less verbose way to check exceptions.
80 lines
2.6 KiB
Python
80 lines
2.6 KiB
Python
import pytest
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def test_error_already_set(msg):
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from pybind11_tests import throw_already_set
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with pytest.raises(RuntimeError) as excinfo:
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throw_already_set(False)
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assert msg(excinfo.value) == "Unknown internal error occurred"
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with pytest.raises(ValueError) as excinfo:
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throw_already_set(True)
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assert msg(excinfo.value) == "foo"
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def test_python_call_in_catch():
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from pybind11_tests import python_call_in_destructor
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d = {}
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assert python_call_in_destructor(d) is True
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assert d["good"] is True
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def test_exception_matches():
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from pybind11_tests import exception_matches
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exception_matches()
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def test_custom(msg):
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from pybind11_tests import (MyException, MyException5, MyException5_1,
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throws1, throws2, throws3, throws4, throws5, throws5_1,
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throws_logic_error)
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# Can we catch a MyException?"
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with pytest.raises(MyException) as excinfo:
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throws1()
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assert msg(excinfo.value) == "this error should go to a custom type"
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# Can we translate to standard Python exceptions?
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with pytest.raises(RuntimeError) as excinfo:
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throws2()
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assert msg(excinfo.value) == "this error should go to a standard Python exception"
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# Can we handle unknown exceptions?
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with pytest.raises(RuntimeError) as excinfo:
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throws3()
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assert msg(excinfo.value) == "Caught an unknown exception!"
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# Can we delegate to another handler by rethrowing?
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with pytest.raises(MyException) as excinfo:
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throws4()
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assert msg(excinfo.value) == "this error is rethrown"
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# "Can we fall-through to the default handler?"
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with pytest.raises(RuntimeError) as excinfo:
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throws_logic_error()
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assert msg(excinfo.value) == "this error should fall through to the standard handler"
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# Can we handle a helper-declared exception?
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with pytest.raises(MyException5) as excinfo:
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throws5()
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assert msg(excinfo.value) == "this is a helper-defined translated exception"
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# Exception subclassing:
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with pytest.raises(MyException5) as excinfo:
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throws5_1()
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assert msg(excinfo.value) == "MyException5 subclass"
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assert isinstance(excinfo.value, MyException5_1)
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with pytest.raises(MyException5_1) as excinfo:
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throws5_1()
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assert msg(excinfo.value) == "MyException5 subclass"
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with pytest.raises(MyException5) as excinfo:
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try:
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throws5()
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except MyException5_1:
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raise RuntimeError("Exception error: caught child from parent")
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assert msg(excinfo.value) == "this is a helper-defined translated exception"
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