def test_list_to_smbus_data():
lst = list(range(10))
data = ffi.new("union i2c_smbus_data *")
list_to_smbus_data(data, lst)
assert data.block[0] == 10
for i in lst:
assert data.block[i + 1] == i
def test_list_to_smbus_data_errors():
data = ffi.new("union i2c_smbus_data *")
l = list(range(33))
with pytest.raises(OverflowError):
list_to_smbus_data(data, l)
# does not raise
list_to_smbus_data(data, list(range(32)))
def test_list_to_smbus_full():
lst = list(range(1, 33))
data = ffi.new("union i2c_smbus_data *")
list_to_smbus_data(data, lst)
assert data.block[0] == len(lst)
for i in range(len(lst)):
assert data.block[i + 1] == i + 1
def test_smbus_data_to_list():
from smbus import ffi, list_to_smbus_data, smbus_data_to_list
lst = list(range(10))
data = ffi.new("union i2c_smbus_data *")
list_to_smbus_data(data, lst)
assert smbus_data_to_list(data) == list(range(10))
def test_smbus_data_to_list():
lst = list(range(10))
data = ffi.new("union i2c_smbus_data *")
list_to_smbus_data(data, lst)
assert smbus_data_to_list(data) == list(range(10))