def test_IOStream_init():
"""IOStream initializes from a file-like object missing attributes. """
# Cause a failure from getattr and dir(). (Issue #6386)
class BadStringIO(StringIO):
def __dir__(self):
attrs = super(StringIO, self).__dir__()
attrs.append('name')
return attrs
iostream = IOStream(BadStringIO())
iostream.write('hi, bad iostream\n')
assert not hasattr(iostream, 'name')
def test_IOStream_init(self):
"""IOStream initializes from a file-like object missing attributes. """
# Cause a failure from getattr and dir(). (Issue #6386)
class BadStringIO(StringIO):
def __dir__(self):
attrs = super().__dir__()
attrs.append("name")
return attrs
with self.assertWarns(DeprecationWarning):
iostream = IOStream(BadStringIO())
iostream.write("hi, bad iostream\n")
assert not hasattr(iostream, "name")
iostream.close()