def test_iso_threshold():
"""Test setting iso_threshold."""
np.random.seed(0)
data = np.random.random((10, 15))
layer = Image(data)
assert layer.iso_threshold == 0.5
# Change iso_threshold property
iso_threshold = 0.7
layer.iso_threshold = iso_threshold
assert layer.iso_threshold == iso_threshold
# Set iso_threshold as keyword argument
layer = Image(data, iso_threshold=iso_threshold)
assert layer.iso_threshold == iso_threshold
