def test_scaling_offset_as_list(scale_factor, add_offset) -> None:
# test for #4631
encoding = dict(scale_factor=scale_factor, add_offset=add_offset)
original = xr.Variable(("x", ), np.arange(10.0), encoding=encoding)
coder = variables.CFScaleOffsetCoder()
encoded = coder.encode(original)
roundtripped = coder.decode(encoded)
assert_allclose(original, roundtripped)
def test_scaling_converts_to_float32(dtype):
original = xr.Variable(('x',), np.arange(10, dtype=dtype),
encoding=dict(scale_factor=10))
coder = variables.CFScaleOffsetCoder()
encoded = coder.encode(original)
assert encoded.dtype == np.float32
roundtripped = coder.decode(encoded)
assert_identical(original, roundtripped)
assert roundtripped.dtype == np.float32