def test_numerical_values_changed(self):
# Here we slice two of the dimensions and then compare the results to a
# manually sliced dataset.
derived = IndexedData(self.data, (None, 2, None, 4, None))
data_collection = DataCollection([self.data, derived])
class CustomListener(HubListener):
def __init__(self, hub):
self.received = 0
hub.subscribe(self,
NumericalDataChangedMessage,
handler=self.receive_message)
def receive_message(self, message):
self.received += 1
listener = CustomListener(data_collection.hub)
assert listener.received == 0
derived.indices = (None, 3, None, 5, None)
assert listener.received == 1
derived.indices = (None, 3, None, 5, None)
assert listener.received == 1
def test_numerical_values_changed(self):
# Here we slice two of the dimensions and then compare the results to a
# manually sliced dataset.
derived = IndexedData(self.data, (None, 2, None, 4, None))
data_collection = DataCollection([self.data, derived])
class CustomListener(HubListener):
def __init__(self, hub):
self.received = 0
hub.subscribe(self, NumericalDataChangedMessage,
handler=self.receive_message)
def receive_message(self, message):
self.received += 1
listener = CustomListener(data_collection.hub)
assert listener.received == 0
derived.indices = (None, 3, None, 5, None)
assert listener.received == 1
derived.indices = (None, 3, None, 5, None)
assert listener.received == 1
def test_invalid_indices_changed(self):
derived = IndexedData(self.data, (None, 2, None, 4, None))
with pytest.raises(TypeError) as exc:
derived.indices = (2, None, 4, None, 5)
assert exc.value.args[0] == "Can't change where the ``None`` values are in indices"
with pytest.raises(ValueError) as exc:
derived.indices = (2, None, 4, None)
assert exc.value.args[0] == "The 'indices' tuple should have length 5"
def test_invalid_indices_changed(self):
derived = IndexedData(self.data, (None, 2, None, 4, None))
with pytest.raises(TypeError) as exc:
derived.indices = (2, None, 4, None, 5)
assert exc.value.args[
0] == "Can't change where the ``None`` values are in indices"
with pytest.raises(ValueError) as exc:
derived.indices = (2, None, 4, None)
assert exc.value.args[0] == "The 'indices' tuple should have length 5"