def test_getarray_noinit_noinit():
"""Test that calling on a non-existant array does not initialize that array"""
arr = np.ones((5, 5))
model = ImageModel(data=arr)
try:
model.getarray_noinit('area')
except AttributeError:
pass
assert 'area' not in model.instance
def test_getarray_noinit_raises():
"""Test for error when accessing non-existent array"""
arr = np.ones((5, 5))
model = ImageModel(data=arr)
with pytest.raises(AttributeError):
model.getarray_noinit('area')
def test_getarray_noinit_valid():
"""Test for valid value return"""
arr = np.ones((5, 5))
model = ImageModel(data=arr)
fetched = model.getarray_noinit('data')
assert (fetched == arr).all()