mirror of
https://github.com/JoelBender/bacpypes
synced 2025-09-28 22:15:23 +08:00
107 lines
2.5 KiB
Python
107 lines
2.5 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
Test Primitive Data Null
|
|
------------------------
|
|
"""
|
|
|
|
import unittest
|
|
|
|
from bacpypes.debugging import bacpypes_debugging, ModuleLogger, xtob
|
|
from bacpypes.primitivedata import Null, Tag
|
|
|
|
# some debugging
|
|
_debug = 0
|
|
_log = ModuleLogger(globals())
|
|
|
|
|
|
@bacpypes_debugging
|
|
def null_tag(x):
|
|
"""Convert a hex string to an integer application tag."""
|
|
if _debug: null_tag._debug("null_tag %r", x)
|
|
|
|
b = xtob(x)
|
|
tag = Tag(Tag.applicationTagClass, Tag.nullAppTag, len(b), b)
|
|
if _debug: integer_endec._debug(" - tag: %r", tag)
|
|
|
|
return tag
|
|
|
|
|
|
@bacpypes_debugging
|
|
def null_encode(obj):
|
|
"""Encode an Integer object into a tag."""
|
|
if _debug: null_encode._debug("null_encode %r", obj)
|
|
|
|
tag = Tag()
|
|
obj.encode(tag)
|
|
if _debug: null_encode._debug(" - tag: %r", tag)
|
|
|
|
return tag
|
|
|
|
|
|
@bacpypes_debugging
|
|
def null_decode(tag):
|
|
"""Decode an integer application tag into an integer."""
|
|
if _debug: null_decode._debug("null_decode %r", tag)
|
|
|
|
obj = Null(tag)
|
|
if _debug: null_decode._debug(" - obj: %r", obj)
|
|
|
|
return obj
|
|
|
|
|
|
@bacpypes_debugging
|
|
def null_endec(v, x):
|
|
"""Pass the value to Integer, construct a tag from the hex string,
|
|
and compare results of encode and decoding each other."""
|
|
if _debug: null_endec._debug("null_endec %r %r", v, x)
|
|
|
|
tag = null_tag(x)
|
|
if _debug: null_endec._debug(" - tag: %r, %r", tag, tag.tagData)
|
|
|
|
obj = Null(v)
|
|
if _debug: null_endec._debug(" - obj: %r, %r", obj, obj.value)
|
|
|
|
assert null_encode(obj) == tag
|
|
assert null_decode(tag) == obj
|
|
|
|
|
|
@bacpypes_debugging
|
|
class TestNull(unittest.TestCase):
|
|
|
|
def test_null(self):
|
|
if _debug: TestInteger._debug("test_null")
|
|
|
|
obj = Null()
|
|
assert obj.value == ()
|
|
|
|
with self.assertRaises(TypeError):
|
|
Null("some string")
|
|
with self.assertRaises(TypeError):
|
|
Null(1.0)
|
|
|
|
def test_null_null(self):
|
|
if _debug: TestInteger._debug("test_null_null")
|
|
|
|
obj = Null(())
|
|
assert obj.value == ()
|
|
|
|
def test_null_tag(self):
|
|
if _debug: TestInteger._debug("test_null_tag")
|
|
|
|
tag = Tag(Tag.applicationTagClass, Tag.nullAppTag, 0, xtob(''))
|
|
obj = Null(tag)
|
|
assert obj.value == ()
|
|
|
|
def test_null_copy(self):
|
|
if _debug: TestInteger._debug("test_null_copy")
|
|
|
|
obj1 = Null()
|
|
obj2 = Null(obj1)
|
|
assert obj2.value == ()
|
|
|
|
def test_null_endec(self):
|
|
if _debug: TestInteger._debug("test_null_endec")
|
|
|
|
null_endec((), '') |