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frappy_demo.test: add parameter for testing error messages

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Change-Id: Ifbf9d6829be373417d3bf1ff398d2aee283d8c9a
This commit is contained in:
zolliker 2025-01-17 15:01:11 +01:00
parent eee63ee3df
commit b7bc81710d
1 changed files with 5 additions and 1 deletions
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6
frappy_demo/test.py
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@ -26,7 +26,7 @@ from frappy.datatypes import FloatRange, StringType, ValueType, TupleOf, StructO
from frappy.modules import Communicator, Drivable, Parameter, Property, Readable, Module, Attached
from frappy.params import Command
from frappy.dynamic import Pinata
from frappy.errors import RangeError
from frappy.errors import RangeError, HardwareError
class Pin(Pinata):
def scanModules(self):
@ -72,8 +72,12 @@ class Heater(Drivable):
maxheaterpower = Parameter('maximum allowed heater power',
datatype=FloatRange(0, 100), unit='W',
)
error_message = Parameter('simulated error message', StringType(),
default='', readonly=False)
def read_value(self):
if self.error_message:
raise HardwareError(self.error_message)
return round(100 * random.random(), 1)
def write_target(self, target):