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Catching exceptions from iterator MoveNext() (related to #475) #522

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Catching exceptions from iterator MoveNext() (related to #475) #522

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31a4482
crashing exception test
Aug 9, 2017
8531755
Catch exceptions from iterator.MoveNext()
rickardraysearch Aug 9, 2017
9e08150
Updated changelog
rickardraysearch Aug 9, 2017
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crashing exception test
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Rickard Holmberg committed Aug 9, 2017
commit 31a4482debc5b7000de35ef9efaaace9caa06dae
9 changes: 9 additions & 0 deletions src/testing/exceptiontest.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
using System;
using System.Collections;
using System.Collections.Generic;

namespace Python.Test
{
Expand Down Expand Up @@ -54,6 +56,13 @@ public static bool ThrowException()
throw new OverflowException("error");
}

public static IEnumerable<int> ThrowExceptionInIterator()
{
yield return 1;
yield return 2;
throw new OverflowException("error");
}

public static void ThrowChainedExceptions()
{
try
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14 changes: 14 additions & 0 deletions src/tests/test_exceptions.py
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Expand Up @@ -345,3 +345,17 @@ def test_chained_exceptions():
assert exc.Message == msg
assert exc.__cause__ == exc.InnerException
exc = exc.__cause__

def test_iteration_exception():
from Python.Test import ExceptionTest
from System import OverflowException

val = ExceptionTest.ThrowExceptionInIterator().__iter__()
assert next(val) == 1
assert next(val) == 2
with pytest.raises(OverflowException) as cm:
next(val)

exc = cm.value

assert isinstance(exc, OverflowException)