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https://github.com/JoelBender/bacpypes
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When the tutorial is over, the reader will continue with HandsOnLab which contains Samples1,2,3,4 Samples 5 and 14 were removed from the official table of content as they are not completed yet. All code is tested, files were moved from samples to their folder. Signed-off-by: Christian Tremblay <christian.tremblay@servisys.com>
120 lines
2.7 KiB
Python
120 lines
2.7 KiB
Python
#!/usr/bin/env python
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"""
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The capabilty module is used to mix together classes that provide
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both separate and overlapping functionality. The original design
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was motivated by a component architecture where collections of
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components that needed to be mixed together were specified outside
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the application in a database.
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THIS FILE IS A DUPLICATE OF A UNIT TEST USED, PUT HERE FOR CONVENIENCE
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"""
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import unittest
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from bacpypes.debugging import bacpypes_debugging, ModuleLogger
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from bacpypes.capability import Capability, Collector
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# some debugging
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_debug = 0
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_log = ModuleLogger(globals())
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@bacpypes_debugging
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class BaseCollector(Collector):
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def __init__(self):
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if _debug: BaseCollector._debug("__init__")
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Collector.__init__(self)
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def transform(self, value):
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if _debug: BaseCollector._debug("transform %r", value)
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for fn in self.capability_functions('transform'):
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print(" - fn: {}".format(fn))
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value = fn(self, value)
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return value
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@bacpypes_debugging
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class PlusOne(Capability):
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def __init__(self):
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if _debug: PlusOne._debug("__init__")
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def transform(self, value):
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if _debug: PlusOne._debug("transform %r", value)
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return value + 1
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@bacpypes_debugging
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class TimesTen(Capability):
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def __init__(self):
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if _debug: TimesTen._debug("__init__")
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def transform(self, value):
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if _debug: TimesTen._debug("transform %r", value)
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return value * 10
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@bacpypes_debugging
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class MakeList(Capability):
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def __init__(self):
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if _debug: MakeList._debug("__init__")
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def transform(self, value):
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if _debug: MakeList._debug("transform %r", value)
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return [value]
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#
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# Example classes
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#
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class Example1(BaseCollector):
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pass
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class Example2(BaseCollector, PlusOne):
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pass
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class Example3(BaseCollector, TimesTen, PlusOne):
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pass
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class Example4(BaseCollector, MakeList, TimesTen):
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pass
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@bacpypes_debugging
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class TestExamples(unittest.TestCase):
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def test_example_1(self):
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if _debug: TestExamples._debug("test_example_1")
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assert Example1().transform(1) == 1
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def test_example_2(self):
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if _debug: TestExamples._debug("test_example_2")
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assert Example2().transform(2) == 3
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def test_example_3(self):
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if _debug: TestExamples._debug("test_example_3")
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assert Example3().transform(3) == 31
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def test_example_4(self):
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if _debug: TestExamples._debug("test_example_4")
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assert Example4().transform(4) == [4, 4, 4, 4, 4, 4, 4, 4, 4, 4]
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def test_example_5(self):
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if _debug: TestExamples._debug("test_example_5")
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obj = Example2()
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obj.add_capability(MakeList)
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assert obj.transform(5) == [6]
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