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from pypy.module.cpyext.test.test_api import BaseApiTest, raises_w
from pypy.module.cpyext.test.test_cpyext import AppTestCpythonExtensionBase
from pypy.module.cpyext.pyobject import make_ref
from pypy.module.cpyext.exception import (
PyExceptionInstance_Class, PyException_GetTraceback,
PyException_SetTraceback, PyException_GetContext, PyException_SetContext,
PyException_GetCause, PyException_SetCause)
class TestExceptions(BaseApiTest):
def test_ExceptionInstance_Class(self, space):
w_instance = space.call_function(space.w_ValueError)
assert PyExceptionInstance_Class(
space, w_instance) is space.w_ValueError
def test_traceback(self, space):
w_exc = space.call_function(space.w_ValueError)
assert PyException_GetTraceback(space, w_exc) is None
with raises_w(space, TypeError):
PyException_SetTraceback(space, w_exc, space.wrap(1))
def test_context(self, space):
w_exc = space.call_function(space.w_ValueError)
assert PyException_GetContext(space, w_exc) is None
w_ctx = space.call_function(space.w_IndexError)
PyException_SetContext(space, w_exc, make_ref(space, w_ctx))
assert space.is_w(PyException_GetContext(space, w_exc), w_ctx)
def test_cause(self, space):
w_exc = space.call_function(space.w_ValueError)
assert PyException_GetCause(space, w_exc) is None
w_cause = space.call_function(space.w_IndexError)
PyException_SetCause(space, w_exc, make_ref(space, w_cause))
assert space.is_w(PyException_GetCause(space, w_exc), w_cause)
class AppTestExceptions(AppTestCpythonExtensionBase):
def test_OSError_aliases(self):
module = self.import_extension('foo', [
("get_aliases", "METH_NOARGS",
"""
return PyTuple_Pack(2,
PyExc_EnvironmentError,
PyExc_IOError);
""")])
assert module.get_aliases() == (OSError, OSError)
def test_implicit_chaining(self):
module = self.import_extension('foo', [
("raise_exc", "METH_NOARGS",
"""
PyObject *ev, *et, *tb;
PyObject *ev0, *et0, *tb0;
PyErr_GetExcInfo(&ev0, &et0, &tb0);
PyErr_SetString(PyExc_ValueError, "foo");
// simplified copy of __Pyx_GetException
PyErr_Fetch(&et, &ev, &tb);
PyErr_NormalizeException(&et, &ev, &tb);
if (tb) PyException_SetTraceback(ev, tb);
PyErr_SetExcInfo(et, ev, tb);
PyErr_SetString(PyExc_TypeError, "bar");
PyErr_SetExcInfo(ev0, et0, tb0);
return NULL;
""")])
excinfo = raises(TypeError, module.raise_exc)
assert excinfo.value.__context__
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