def test_get_term_sum_when_zero_is_not_in_available_terms():
available_terms = [16, 32]
assert [] == \
BaseSensorChannel._get_sum_terms(available_terms,
3)
# Note that `_get_sum_terms` expects '0' to be in the available_terms,
# hence for this particular case it will still return a list with '0' in
# it although that '0' is not part of the available_terms
assert [0] == \
BaseSensorChannel._get_sum_terms(available_terms,
0)
def test_get_term_sum_with_some_powers_of_2_omitted():
available_terms = [0, 16, 32]
assert [32, 16] == \
BaseSensorChannel._get_sum_terms(available_terms,
16 + 32)
assert [32] == \
BaseSensorChannel._get_sum_terms(available_terms,
32)
assert [0] == \
BaseSensorChannel._get_sum_terms(available_terms,
0)
def test_get_term_sum():
available_terms = [0, 1, 2, 4, 8, 16, 32]
assert [32, 8, 2, 1] == \
BaseSensorChannel._get_sum_terms(available_terms,
1 + 2 + 8 + 32)
assert [32] == \
BaseSensorChannel._get_sum_terms(available_terms,
32)
assert [16, 4, 1] == \
BaseSensorChannel._get_sum_terms(available_terms,
1 + 4 + 16)
assert [0] == \
BaseSensorChannel._get_sum_terms(available_terms,
0)
def test_get_term_sum_returns_empty_list():
available_terms = [0, 16, 32]
assert [] == \
BaseSensorChannel._get_sum_terms(available_terms,
15)