async def test_derivative():
"""Test calculation of derivative value."""
from dsmr_parser.objects import MBusObject
config = {"platform": "dsmr"}
entity = DerivativeDSMREntity("test", "test_device", "5678", "1.0.0",
config, False)
await entity.async_update()
assert entity.state is None, "initial state not unknown"
entity.telegram = {
"1.0.0":
MBusObject([
{
"value": datetime.datetime.fromtimestamp(1551642213)
},
{
"value": Decimal(745.695),
"unit": VOLUME_CUBIC_METERS
},
])
}
await entity.async_update()
assert entity.state is None, "state after first update should still be unknown"
entity.telegram = {
"1.0.0":
MBusObject([
{
"value": datetime.datetime.fromtimestamp(1551642543)
},
{
"value": Decimal(745.698),
"unit": VOLUME_CUBIC_METERS
},
])
}
await entity.async_update()
assert (
abs(entity.state - 0.033) < 0.00001
), "state should be hourly usage calculated from first and second update"
assert entity.unit_of_measurement == VOLUME_FLOW_RATE_CUBIC_METERS_PER_HOUR
def test_derivative():
"""Test calculation of derivative value."""
from dsmr_parser.objects import MBusObject
config = {'platform': 'dsmr'}
entity = DerivativeDSMREntity('test', '1.0.0', config)
yield from entity.async_update()
assert entity.state is None, 'initial state not unknown'
entity.telegram = {
'1.0.0': MBusObject([
{'value': datetime.datetime.fromtimestamp(1551642213)},
{'value': Decimal(745.695), 'unit': 'm3'},
])
}
yield from entity.async_update()
assert entity.state is None, \
'state after first update should still be unknown'
entity.telegram = {
'1.0.0': MBusObject([
{'value': datetime.datetime.fromtimestamp(1551642543)},
{'value': Decimal(745.698), 'unit': 'm3'},
])
}
yield from entity.async_update()
assert abs(entity.state - 0.033) < 0.00001, \
'state should be hourly usage calculated from first and second update'
assert entity.unit_of_measurement == 'm3/h'
def test_derivative():
"""Test calculation of derivative value."""
from dsmr_parser.objects import MBusObject
config = {'platform': 'dsmr'}
entity = DerivativeDSMREntity('test', '1.0.0', config)
yield from entity.async_update()
assert entity.state is None, 'initial state not unknown'
entity.telegram = {
'1.0.0':
MBusObject([
{
'value': datetime.datetime.fromtimestamp(1551642213)
},
{
'value': Decimal(745.695),
'unit': 'm3'
},
])
}
yield from entity.async_update()
assert entity.state is None, \
'state after first update should still be unknown'
entity.telegram = {
'1.0.0':
MBusObject([
{
'value': datetime.datetime.fromtimestamp(1551642543)
},
{
'value': Decimal(745.698),
'unit': 'm3'
},
])
}
yield from entity.async_update()
assert abs(entity.state - 0.033) < 0.00001, \
'state should be hourly usage calculated from first and second update'
assert entity.unit_of_measurement == 'm3/h'