pydase/tests/test_properties.py
2023-08-02 12:06:22 +02:00

428 lines
12 KiB
Python

from pytest import CaptureFixture
from pyDataService import DataService
def test_properties(capsys: CaptureFixture) -> None:
class ServiceClass(DataService):
_voltage = 10.0
_current = 1.0
@property
def power(self) -> float:
return self._voltage * self.current
@property
def voltage(self) -> float:
return self._voltage
@voltage.setter
def voltage(self, value: float) -> None:
self._voltage = value
@property
def current(self) -> float:
return self._current
@current.setter
def current(self, value: float) -> None:
self._current = value
test_service = ServiceClass()
test_service.voltage = 1
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.power = 1.0",
"ServiceClass.voltage = 1.0",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
test_service.current = 12.0
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.power = 12.0",
"ServiceClass.current = 12.0",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
def test_nested_properties(capsys: CaptureFixture) -> None:
class SubSubClass(DataService):
name = "Hello"
class SubClass(DataService):
name = "Hello"
class_attr = SubSubClass()
class ServiceClass(DataService):
class_attr = SubClass()
name = "World"
@property
def subsub_name(self) -> str:
return f"{self.class_attr.class_attr.name} {self.name}"
@property
def sub_name(self) -> str:
return f"{self.class_attr.name} {self.name}"
test_service = ServiceClass()
test_service.name = "Peepz"
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.name = Peepz",
"ServiceClass.sub_name = Hello Peepz",
"ServiceClass.subsub_name = Hello Peepz",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
test_service.class_attr.name = "Hi"
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.sub_name = Hi Peepz",
"ServiceClass.subsub_name = Hello Peepz", # registers subclass changes
"ServiceClass.class_attr.name = Hi",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
test_service.class_attr.class_attr.name = "Ciao"
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.sub_name = Hi Peepz", # registers subclass changes
"ServiceClass.subsub_name = Ciao Peepz",
"ServiceClass.class_attr.class_attr.name = Ciao",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
def test_simple_list_properties(capsys: CaptureFixture) -> None:
class ServiceClass(DataService):
list = ["Hello", "Ciao"]
name = "World"
@property
def total_name(self) -> str:
return f"{self.list[0]} {self.name}"
test_service = ServiceClass()
test_service.name = "Peepz"
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.name = Peepz",
"ServiceClass.total_name = Hello Peepz",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
test_service.list[0] = "Hi"
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.total_name = Hi Peepz",
"ServiceClass.list[0] = Hi",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
def test_class_list_properties(capsys: CaptureFixture) -> None:
class SubClass(DataService):
name = "Hello"
class ServiceClass(DataService):
list = [SubClass()]
name = "World"
@property
def total_name(self) -> str:
return f"{self.list[0].name} {self.name}"
test_service = ServiceClass()
test_service.name = "Peepz"
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.name = Peepz",
"ServiceClass.total_name = Hello Peepz",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
test_service.list[0].name = "Hi"
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.total_name = Hi Peepz",
"ServiceClass.list[0].name = Hi",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
def test_subclass_properties(capsys: CaptureFixture) -> None:
class SubClass(DataService):
name = "Hello"
_voltage = 10.0
_current = 1.0
@property
def power(self) -> float:
return self._voltage * self.current
@property
def voltage(self) -> float:
return self._voltage
@voltage.setter
def voltage(self, value: float) -> None:
self._voltage = value
@property
def current(self) -> float:
return self._current
@current.setter
def current(self, value: float) -> None:
self._current = value
class ServiceClass(DataService):
class_attr = SubClass()
test_service = ServiceClass()
test_service.class_attr.voltage = 10.0
captured = capsys.readouterr()
expected_output = sorted(
[
"ServiceClass.class_attr.voltage = 10.0",
"ServiceClass.class_attr.power = 10.0",
]
)
actual_output = sorted(captured.out.strip().split("\n"))
assert actual_output == expected_output
def test_subclass_properties(capsys: CaptureFixture) -> None:
class SubClass(DataService):
name = "Hello"
_voltage = 10.0
_current = 1.0
@property
def power(self) -> float:
return self._voltage * self.current
@property
def voltage(self) -> float:
return self._voltage
@voltage.setter
def voltage(self, value: float) -> None:
self._voltage = value
@property
def current(self) -> float:
return self._current
@current.setter
def current(self, value: float) -> None:
self._current = value
class ServiceClass(DataService):
class_attr = SubClass()
@property
def voltage(self) -> float:
return self.class_attr.voltage
test_service = ServiceClass()
test_service.class_attr.voltage = 10.0
captured = capsys.readouterr()
expected_output = sorted(
{
"ServiceClass.class_attr.voltage = 10.0",
"ServiceClass.class_attr.power = 10.0",
"ServiceClass.voltage = 10.0",
}
)
# using a set here as "ServiceClass.voltage = 10.0" is emitted twice. Once for
# changing voltage, and once for changing power.
actual_output = sorted(set(captured.out.strip().split("\n")))
assert actual_output == expected_output
def test_subclass_properties_2(capsys: CaptureFixture) -> None:
class SubClass(DataService):
name = "Hello"
_voltage = 10.0
_current = 1.0
@property
def power(self) -> float:
return self._voltage * self.current
@property
def voltage(self) -> float:
return self._voltage
@voltage.setter
def voltage(self, value: float) -> None:
self._voltage = value
@property
def current(self) -> float:
return self._current
@current.setter
def current(self, value: float) -> None:
self._current = value
class ServiceClass(DataService):
class_attr = [SubClass() for i in range(2)]
@property
def voltage(self) -> float:
return self.class_attr[0].voltage
test_service = ServiceClass()
test_service.class_attr[1].current = 10.0
captured = capsys.readouterr()
expected_output = sorted(
{
"ServiceClass.class_attr[1].current = 10.0",
"ServiceClass.class_attr[1].power = 100.0",
"ServiceClass.voltage = 10.0",
}
)
# using a set here as "ServiceClass.voltage = 10.0" is emitted twice. Once for
# changing current, and once for changing power. Note that the voltage property is
# only dependent on class_attr[0] but still emits an update notification. This is
# because every time any item in the list `test_service.class_attr` is changed,
# a notification will be emitted.
actual_output = sorted(set(captured.out.strip().split("\n")))
assert actual_output == expected_output
def test_subsubclass_properties(capsys: CaptureFixture) -> None:
class SubSubClass(DataService):
_voltage = 10.0
@property
def voltage(self) -> float:
return self._voltage
@voltage.setter
def voltage(self, value: float) -> None:
self._voltage = value
class SubClass(DataService):
class_attr = SubSubClass()
current = 0.5
@property
def power(self) -> float:
return self.class_attr.voltage * self.current
class ServiceClass(DataService):
class_attr = [SubClass() for i in range(2)]
@property
def power(self) -> float:
return self.class_attr[0].power
test_service = ServiceClass()
test_service.class_attr[1].class_attr.voltage = 100.0
captured = capsys.readouterr()
expected_output = sorted(
{
"ServiceClass.class_attr[0].class_attr.voltage = 100.0",
"ServiceClass.class_attr[1].class_attr.voltage = 100.0",
"ServiceClass.class_attr[0].power = 50.0",
"ServiceClass.class_attr[1].power = 50.0",
"ServiceClass.power = 50.0",
}
)
actual_output = sorted(set(captured.out.strip().split("\n")))
assert actual_output == expected_output
def test_subsubclass_instance_properties(capsys: CaptureFixture) -> None:
class SubSubClass(DataService):
def __init__(self) -> None:
self._voltage = 10.0
super().__init__()
@property
def voltage(self) -> float:
return self._voltage
@voltage.setter
def voltage(self, value: float) -> None:
self._voltage = value
class SubClass(DataService):
def __init__(self) -> None:
self.attr = [SubSubClass()]
self.current = 0.5
super().__init__()
@property
def power(self) -> float:
return self.attr[0].voltage * self.current
class ServiceClass(DataService):
class_attr = [SubClass() for i in range(2)]
@property
def power(self) -> float:
return self.class_attr[0].power
test_service = ServiceClass()
test_service.class_attr[1].attr[0].voltage = 100.0
captured = capsys.readouterr()
# again, changing an item in a list will trigger the callbacks. This is why a
# notification for `ServiceClass.power` is emitted although it did not change its
# value
expected_output = sorted(
{
"ServiceClass.class_attr[1].attr[0].voltage = 100.0",
"ServiceClass.class_attr[1].power = 50.0",
"ServiceClass.power = 5.0",
}
)
actual_output = sorted(set(captured.out.strip().split("\n")))
assert actual_output == expected_output