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deye_sensor_test.py
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deye_sensor_test.py
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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
import unittest
from unittest.mock import patch
from deye_sensor import (
Sensor,
ComputedSumSensor,
DoubleRegisterSensor,
SingleRegisterSensor,
SignedMagnitudeSingleRegisterSensor,
SignedMagnitudeDoubleRegisterSensor,
)
class TestSensor(Sensor):
def __init__(self, name, value):
super().__init__(name, groups=['string'])
self.value = value
def read_value(self, registers):
return self.value
class DeyeSensorTest(unittest.TestCase):
def test_sum_sensor_returns_sum_when_all_inputs_are_given(self):
# given
test_sensor1 = TestSensor("ts1", 1.1)
test_sensor2 = TestSensor("ts2", 2.2)
# and
sut = ComputedSumSensor('sum', [test_sensor1, test_sensor2], groups=['string'])
# when
result = sut.read_value([])
# then
self.assertAlmostEqual(result, 3.3)
def test_sum_sensor_returns_none_when_any_input_is_none(self):
# given
test_sensor1 = TestSensor("ts1", 1.1)
test_sensor2 = TestSensor("ts2", None)
# and
sut = ComputedSumSensor('sum', [test_sensor1, test_sensor2], groups=['string'])
# when
result = sut.read_value([])
# then
self.assertIsNone(result)
def test_single_reg_sensor_unsigned(self):
# given
sut = SingleRegisterSensor('test', 0x00, 1, signed=False, groups=['string'])
# and
registers = {
0: bytearray.fromhex('0102')
}
# when
result = sut.read_value(registers)
# then
self.assertEqual(result, 0x0102)
def test_double_reg_sensor_signed(self):
# given
sut = SingleRegisterSensor('test', 0x00, 1, signed=True, groups=['string'])
# and
registers = {
0: bytearray.fromhex('fffe')
}
# when
result = sut.read_value(registers)
# then
self.assertEqual(result, -2)
def test_double_reg_sensor_unsigned(self):
# given
sut = DoubleRegisterSensor('test', 0x00, 1, signed=False, groups=['string'])
# and
registers = {
0: bytearray.fromhex('0102'), # low word
1: bytearray.fromhex('0304') # high word
}
# when
result = sut.read_value(registers)
# then
self.assertEqual(result, 0x03040102)
def test_double_reg_sensor_signed(self):
# given
sut = DoubleRegisterSensor('test', 0x00, 1, signed=True, groups=['string'])
# and
registers = {
0: bytearray.fromhex('fffe'), # low word
1: bytearray.fromhex('ffff') # high word
}
# when
result = sut.read_value(registers)
# then
self.assertEqual(result, -2)
def test_signed_magnitude_single_register_signed(self):
# given
sut = SignedMagnitudeSingleRegisterSensor('test', 0x00, 1, groups=['igen_dtsd422'])
# and
registers = {
0: bytearray.fromhex('8310')
}
# when
result = sut.read_value(registers)
# then
self.assertEqual(result, -784)
def test_signed_magnitude_single_register_unsigned(self):
# given
sut = SignedMagnitudeSingleRegisterSensor('test', 0x00, 1, groups=['igen_dtsd422'])
# and
registers = {
0: bytearray.fromhex('0310')
}
# when
result = sut.read_value(registers)
# then
self.assertEqual(result, 784)
def test_signed_magnitude_double_register_signed(self):
# given
sut = SignedMagnitudeDoubleRegisterSensor('test', 0x00, 1, groups=['igen_dtsd422'])
# and
registers = {
0: bytearray.fromhex('8000'), # high word
1: bytearray.fromhex('0101') # low word
}
# when
result = sut.read_value(registers)
# then
self.assertEqual(result, -257)
def test_signed_magnitude_double_register_unsigned(self):
# given
sut = SignedMagnitudeDoubleRegisterSensor('test', 0x00, 1, groups=['igen_dtsd422'])
# and
registers = {
0: bytearray.fromhex('0000'), # high word
1: bytearray.fromhex('0101') # low word
}
# when
result = sut.read_value(registers)
# then
self.assertEqual(result, 257)
if __name__ == '__main__':
unittest.main()