def test_nested_throws(capture):
"""Tests nested (e.g. C++ -> Python -> C++) exception handling"""
def throw_myex():
raise m.MyException("nested error")
def throw_myex5():
raise m.MyException5("nested error 5")
# In the comments below, the exception is caught in the first step, thrown in the last step
# C++ -> Python
with capture:
m.try_catch(m.MyException5, throw_myex5)
assert str(capture).startswith("MyException5: nested error 5")
# Python -> C++ -> Python
with pytest.raises(m.MyException) as excinfo:
m.try_catch(m.MyException5, throw_myex)
assert str(excinfo.value) == "nested error"
def pycatch(exctype, f, *args):
try:
f(*args)
except m.MyException as e:
print(e)
# C++ -> Python -> C++ -> Python
with capture:
m.try_catch(
m.MyException5,
pycatch,
m.MyException,
m.try_catch,
m.MyException,
throw_myex5,
)
assert str(capture).startswith("MyException5: nested error 5")
# C++ -> Python -> C++
with capture:
m.try_catch(m.MyException, pycatch, m.MyException5, m.throws4)
assert capture == "this error is rethrown"
# Python -> C++ -> Python -> C++
with pytest.raises(m.MyException5) as excinfo:
m.try_catch(m.MyException, pycatch, m.MyException, m.throws5)
assert str(
excinfo.value) == "this is a helper-defined translated exception"
def test_nested_throws(capture):
"""Tests nested (e.g. C++ -> Python -> C++) exception handling"""
def throw_myex():
raise m.MyException("nested error")
def throw_myex5():
raise m.MyException5("nested error 5")
# In the comments below, the exception is caught in the first step, thrown in the last step
# C++ -> Python
with capture:
m.try_catch(m.MyException5, throw_myex5)
assert str(capture).startswith("MyException5: nested error 5")
# Python -> C++ -> Python
with pytest.raises(m.MyException) as excinfo:
m.try_catch(m.MyException5, throw_myex)
assert str(excinfo.value) == "nested error"
def pycatch(exctype, f, *args):
try:
f(*args)
except m.MyException as e:
print(e)
# C++ -> Python -> C++ -> Python
with capture:
m.try_catch(
m.MyException5, pycatch, m.MyException, m.try_catch, m.MyException, throw_myex5)
assert str(capture).startswith("MyException5: nested error 5")
# C++ -> Python -> C++
with capture:
m.try_catch(m.MyException, pycatch, m.MyException5, m.throws4)
assert capture == "this error is rethrown"
# Python -> C++ -> Python -> C++
with pytest.raises(m.MyException5) as excinfo:
m.try_catch(m.MyException, pycatch, m.MyException, m.throws5)
assert str(excinfo.value) == "this is a helper-defined translated exception"
