def test_update_none():
layer = Points([(1, 2, 3), (1, 3, 2)])
assert layer.ndim == 3
assert layer.data.size == 6
layer.data = None
assert layer.ndim == 3
assert layer.data.size == 0
layer.data = [(1, 2, 3), (1, 3, 2)]
assert layer.ndim == 3
assert layer.data.size == 6
def test_changing_points():
"""Test changing Points data."""
shape_a = (10, 2)
shape_b = (20, 2)
np.random.seed(0)
data_a = 20 * np.random.random(shape_a)
data_b = 20 * np.random.random(shape_b)
layer = Points(data_a)
layer.data = data_b
assert np.all(layer.data == data_b)
assert layer.ndim == shape_b[1]
assert layer._data_view.ndim == 2
assert len(layer.data) == 20
def test_value():
"""Test getting the value of the data at the current coordinates."""
shape = (10, 2)
np.random.seed(0)
data = 20 * np.random.random(shape)
data[-1] = [0, 0]
layer = Points(data)
value = layer.get_value((0, 0))
assert value == 9
layer.data = layer.data + 20
value = layer.get_value((0, 0))
assert value is None
def test_message():
"""Test converting value and coords to message."""
shape = (10, 2)
np.random.seed(0)
data = 20 * np.random.random(shape)
data[-1] = [0, 0]
layer = Points(data)
value = layer.get_value()
msg = layer.get_message(layer.coordinates, value)
assert type(msg) == str
layer.data = layer.data + 5
value = layer.get_value()
msg = layer.get_message(layer.coordinates, value)
assert type(msg) == str
