TestStarStruct.test_verifying_unpack() - Code Metrics - sprout42/StarStruct - Measure and Improve Code Quality continuously with Scrutinizer

TestStarStruct.test_verifying_unpack() F
last analyzed 2016-12-20 21:17 UTC

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Complexity

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Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	16
c	1
b	0
f	0
dl	0
loc	86
rs	2

How to fix Long Method Complexity

#!/usr/bin/env python3

"""Tests for the starstruct class"""

# import struct
import unittest
from binascii import crc32

import pytest

from starstruct.message import Message
# from starstruct.modes import Mode


# pylint: disable=line-too-long,invalid-name
class TestStarStruct(unittest.TestCase):
    """StarStruct module tests"""

    VarTest = Message('VarTest', [
        ('x', 'B'),
        ('y', 'B'),
    ])

    Repeated = Message('Repeated', [
        ('x', 'B'),
        ('z', 'H'),
    ])

    def test_single_element_with_set(self):
        TestStruct = Message('TestStruct', [
            ('length_in_objects', 'H', 'vardata'),
            ('vardata', self.VarTest, 'length_in_objects'),
        ])

        CRCedMessage = Message('CRCedMessage', [
            ('data', TestStruct),
            ('function_data', 'I', {
                (crc32, b'data')
            }),
        ])

        test_data = {
            'data': {
                'length_in_objects': 2,
                'vardata': [
                    {'x': 1, 'y': 2},
                    {'x': 3, 'y': 4},
                ],
            },
        }

        made = CRCedMessage.make(test_data)
        # assert len(made) == 5
        assert len(made.data.vardata) == 2
        assert made.data.vardata[0].x == 1
        assert made.data.vardata[0].y == 2
        assert made.function_data == crc32(TestStruct.pack(test_data['data']))

    def test_single_element_2(self):
        TestStruct = Message('TestStruct', [
            ('length_in_objects', 'H', 'vardata'),
            ('vardata', self.VarTest, 'length_in_objects'),
        ])

        CRCedMessage = Message('CRCedMessage', [
            ('data', TestStruct),
            ('function_data', 'I', {
                'pack': (crc32, b'data'),
                'make': (crc32, b'data'),
                'unpack': (crc32, b'data'),
            }),
        ])

        test_data = {
            'data': {
                'length_in_objects': 2,
                'vardata': [
                    {'x': 1, 'y': 2},
                    {'x': 3, 'y': 4},
                ],
            },
        }

        made = CRCedMessage.make(test_data)
        # assert len(made) == 5
        assert len(made.data.vardata) == 2
        assert made.data.vardata[0].x == 1
        assert made.data.vardata[0].y == 2
        assert made.function_data == crc32(TestStruct.pack(test_data['data']))

    def test_one_element(self):
        def crc32_wrapper(*args):
            return crc32(b''.join(args))

        CompareMessage = Message('CompareMessage', [
            ('length_in_objects', 'H', 'vardata'),
            ('vardata', self.VarTest, 'length_in_objects'),
        ])

        CRCedMessage = Message('TestStruct', [
            ('length_in_objects', 'H', 'vardata'),
            ('vardata', self.VarTest, 'length_in_objects'),
            ('function_data', 'I', {
                (crc32_wrapper, b'length_in_objects', b'vardata')
            }),
        ])

        test_data = {
            'length_in_objects': 2,
            'vardata': [
                {'x': 1, 'y': 2},
                {'x': 3, 'y': 4},
            ],
        }

        made = CRCedMessage.make(test_data)
        # assert len(made) == 5
        assert len(made.vardata) == 2
        assert made.vardata[0].x == 1
        assert made.vardata[0].y == 2

        assert made.function_data == crc32(CompareMessage.pack(test_data))

    def test_adding_element(self):
        def adder(x, y):
            return x + y

        AdderMessage = Message('AdderMessage', [
            ('item_a', 'H'),
            ('item_b', 'B'),
            ('function_data', 'I', {
                (adder, 'item_a', 'item_b')
            }),
        ])

        test_data = {
            'item_a': 2,
            'item_b': 5,
        }

        made = AdderMessage.make(test_data)
        assert made.item_a == 2
        assert made.item_b == 5

        assert made.function_data == 7

    def test_adding_element_list(self):
        def adder(*args):
            return sum(args)

        AdderMessage = Message('AdderMessage', [
            ('item_a', 'H'),
            ('item_b', 'B'),
            ('item_c', 'B'),
            ('item_d', 'B'),
            ('item_e', 'B'),
            # Note, there is no item 'e' in the list of arguments
            ('function_data', 'I', {
                (adder, 'item_a', 'item_b', 'item_c', 'item_d')
            }),
        ])

        # Test getting the correct result
        test_data = {
            'item_a': 2,
            'item_b': 5,
            'item_c': 7,
            'item_d': 4,
            'item_e': 6,
        }

        made = AdderMessage.make(test_data)
        assert made.item_a == 2
        assert made.item_b == 5

        assert made.function_data == 2 + 5 + 7 + 4

        # Check packing and unpacking
        packed = AdderMessage.pack(test_data)
        assert packed == b'\x02\x00\x05\x07\x04\x06\x12\x00\x00\x00'
        assert packed == made.pack()

        unpacked = AdderMessage.unpack(packed)
        assert made == unpacked

        # Test with correct result
        test_data_2 = {
            'item_a': 2,
            'item_b': 5,
            'item_c': 7,
            'item_d': 4,
            'item_e': 6,
            'function_data': 2 + 5 + 7 + 4,
        }
        made = AdderMessage.make(test_data_2)
        assert made.item_a == 2
        assert made.item_b == 5

        assert made.function_data == 2 + 5 + 7 + 4

        # Test with incorrect result
        test_data_2 = {
            'item_a': 2,
            'item_b': 5,
            'item_c': 7,
            'item_d': 4,
            'item_e': 6,
            'function_data': -1,
        }

        with pytest.raises(ValueError):
            made = AdderMessage.make(test_data_2)

    def test_no_error_message(self):
        def adder(*args):
            return sum(args)

        AdderMessage = Message('AdderMessage', [
            ('item_a', 'H'),
            ('item_b', 'B'),
            ('item_c', 'B'),
            ('item_d', 'B'),
            ('item_e', 'B'),
            # Note, there is no item 'e' in the list of arguments
            ('function_data', 'I', {
                (adder, 'item_a', 'item_b', 'item_c', 'item_d')
            }, False),
        ])

        # Test with incorrect result
        test_data_2 = {
            'item_a': 2,
            'item_b': 5,
            'item_c': 7,
            'item_d': 4,
            'item_e': 6,
            'function_data': -1,
        }

        made = AdderMessage.make(test_data_2)
        assert made.function_data == -1

    def test_verifying_unpack(self):
        def adder(*args):
            return sum(args)

        AdderMessage = Message('AdderMessage', [
            ('item_a', 'H'),
            ('item_b', 'B'),
            ('item_c', 'B'),
            ('item_d', 'B'),
            ('item_e', 'B'),
            # Note, there is no item 'e' in the list of arguments
            ('function_data', 'I', {
                (adder, 'item_a', 'item_b', 'item_c', 'item_d')
            }),
        ])

        # Test getting the correct result
        test_data = {
            'item_a': 2,
            'item_b': 5,
            'item_c': 7,
            'item_d': 4,
            'item_e': 6,
        }

        made = AdderMessage.make(test_data)
        assert made.item_a == 2
        assert made.item_b == 5

        assert made.function_data == 2 + 5 + 7 + 4

        # Check packing and unpacking
        packed = AdderMessage.pack(test_data)
        assert packed == b'\x02\x00\x05\x07\x04\x06\x12\x00\x00\x00'
        assert packed == made.pack()

        unpacked = AdderMessage.unpack(packed)
        assert made == unpacked

        # Now we modify the data we are going to unpack, and we should get an error
        modified_packed = b'\x02\x00\x05\x07\x04\x06\x11\x11\x11\x11'

        with pytest.raises(ValueError):
            unpacked = AdderMessage.unpack(modified_packed)

        AdderMessageFalse = Message('AdderMessageFalse', [
            ('item_a', 'H'),
            ('item_b', 'B'),
            ('item_c', 'B'),
            ('item_d', 'B'),
            ('item_e', 'B'),
            # Note, there is no item 'e' in the list of arguments
            ('function_data', 'I', {
                (adder, 'item_a', 'item_b', 'item_c', 'item_d')
            }, False),
        ])

        # Test getting the correct result
        test_data = {
            'item_a': 2,
            'item_b': 5,
            'item_c': 7,
            'item_d': 4,
            'item_e': 6,
        }

        made = AdderMessageFalse.make(test_data)
        assert made.item_a == 2
        assert made.item_b == 5

        assert made.function_data == 2 + 5 + 7 + 4

        # Check packing and unpacking
        packed = AdderMessageFalse.pack(test_data)
        assert packed == b'\x02\x00\x05\x07\x04\x06\x12\x00\x00\x00'
        assert packed == made.pack()

        unpacked = AdderMessageFalse.unpack(packed)
        assert made == unpacked

        # Now we modify the data we are going to unpack, and we should get an error
        modified_packed = b'\x02\x00\x05\x07\x04\x06\x11\x11\x11\x11'

        # This time it won't fail because we set False for this message
        unpacked = AdderMessageFalse.unpack(modified_packed)
        assert unpacked.item_a == 2


1			#!/usr/bin/env python3
2
3			"""Tests for the starstruct class"""
4
5			# import struct
6			import unittest
7			from binascii import crc32
8
9			import pytest
10
11			from starstruct.message import Message
12			# from starstruct.modes import Mode
13
14
15			# pylint: disable=line-too-long,invalid-name
16			class TestStarStruct(unittest.TestCase):
17			"""StarStruct module tests"""
18
19			VarTest = Message('VarTest', [
20			('x', 'B'),
21			('y', 'B'),
22			])
23
24			Repeated = Message('Repeated', [
25			('x', 'B'),
26			('z', 'H'),
27			])
28
29			def test_single_element_with_set(self):
30			TestStruct = Message('TestStruct', [
31			('length_in_objects', 'H', 'vardata'),
32			('vardata', self.VarTest, 'length_in_objects'),
33			])
34
35			CRCedMessage = Message('CRCedMessage', [
36			('data', TestStruct),
37			('function_data', 'I', {
38			(crc32, b'data')
39			}),
40			])
41
42			test_data = {
43			'data': {
44			'length_in_objects': 2,
45			'vardata': [
46			{'x': 1, 'y': 2},
47			{'x': 3, 'y': 4},
48			],
49			},
50			}
51
52			made = CRCedMessage.make(test_data)
53			# assert len(made) == 5
54			assert len(made.data.vardata) == 2
55			assert made.data.vardata[0].x == 1
56			assert made.data.vardata[0].y == 2
57			assert made.function_data == crc32(TestStruct.pack(test_data['data']))
58
59			def test_single_element_2(self):
60			TestStruct = Message('TestStruct', [
61			('length_in_objects', 'H', 'vardata'),
62			('vardata', self.VarTest, 'length_in_objects'),
63			])
64
65			CRCedMessage = Message('CRCedMessage', [
66			('data', TestStruct),
67			('function_data', 'I', {
68			'pack': (crc32, b'data'),
69			'make': (crc32, b'data'),
70			'unpack': (crc32, b'data'),
71			}),
72			])
73
74			test_data = {
75			'data': {
76			'length_in_objects': 2,
77			'vardata': [
78			{'x': 1, 'y': 2},
79			{'x': 3, 'y': 4},
80			],
81			},
82			}
83
84			made = CRCedMessage.make(test_data)
85			# assert len(made) == 5
86			assert len(made.data.vardata) == 2
87			assert made.data.vardata[0].x == 1
88			assert made.data.vardata[0].y == 2
89			assert made.function_data == crc32(TestStruct.pack(test_data['data']))
90
91			def test_one_element(self):
92			def crc32_wrapper(*args):
93			return crc32(b''.join(args))
94
95			CompareMessage = Message('CompareMessage', [
96			('length_in_objects', 'H', 'vardata'),
97			('vardata', self.VarTest, 'length_in_objects'),
98			])
99
100			CRCedMessage = Message('TestStruct', [
101			('length_in_objects', 'H', 'vardata'),
102			('vardata', self.VarTest, 'length_in_objects'),
103			('function_data', 'I', {
104			(crc32_wrapper, b'length_in_objects', b'vardata')
105			}),
106			])
107
108			test_data = {
109			'length_in_objects': 2,
110			'vardata': [
111			{'x': 1, 'y': 2},
112			{'x': 3, 'y': 4},
113			],
114			}
115
116			made = CRCedMessage.make(test_data)
117			# assert len(made) == 5
118			assert len(made.vardata) == 2
119			assert made.vardata[0].x == 1
120			assert made.vardata[0].y == 2
121
122			assert made.function_data == crc32(CompareMessage.pack(test_data))
123
124			def test_adding_element(self):
125			def adder(x, y):
126			return x + y
127
128			AdderMessage = Message('AdderMessage', [
129			('item_a', 'H'),
130			('item_b', 'B'),
131			('function_data', 'I', {
132			(adder, 'item_a', 'item_b')
133			}),
134			])
135
136			test_data = {
137			'item_a': 2,
138			'item_b': 5,
139			}
140
141			made = AdderMessage.make(test_data)
142			assert made.item_a == 2
143			assert made.item_b == 5
144
145			assert made.function_data == 7
146
147			def test_adding_element_list(self):
148			def adder(*args):
149			return sum(args)
150
151			AdderMessage = Message('AdderMessage', [
152			('item_a', 'H'),
153			('item_b', 'B'),
154			('item_c', 'B'),
155			('item_d', 'B'),
156			('item_e', 'B'),
157			# Note, there is no item 'e' in the list of arguments
158			('function_data', 'I', {
159			(adder, 'item_a', 'item_b', 'item_c', 'item_d')
160			}),
161			])
162
163			# Test getting the correct result
164			test_data = {
165			'item_a': 2,
166			'item_b': 5,
167			'item_c': 7,
168			'item_d': 4,
169			'item_e': 6,
170			}
171
172			made = AdderMessage.make(test_data)
173			assert made.item_a == 2
174			assert made.item_b == 5
175
176			assert made.function_data == 2 + 5 + 7 + 4
177
178			# Check packing and unpacking
179			packed = AdderMessage.pack(test_data)
180			assert packed == b'\x02\x00\x05\x07\x04\x06\x12\x00\x00\x00'
181			assert packed == made.pack()
182
183			unpacked = AdderMessage.unpack(packed)
184			assert made == unpacked
185
186			# Test with correct result
187			test_data_2 = {
188			'item_a': 2,
189			'item_b': 5,
190			'item_c': 7,
191			'item_d': 4,
192			'item_e': 6,
193			'function_data': 2 + 5 + 7 + 4,
194			}
195			made = AdderMessage.make(test_data_2)
196			assert made.item_a == 2
197			assert made.item_b == 5
198
199			assert made.function_data == 2 + 5 + 7 + 4
200
201			# Test with incorrect result
202			test_data_2 = {
203			'item_a': 2,
204			'item_b': 5,
205			'item_c': 7,
206			'item_d': 4,
207			'item_e': 6,
208			'function_data': -1,
209			}
210
211			with pytest.raises(ValueError):
212			made = AdderMessage.make(test_data_2)
213
214			def test_no_error_message(self):
215			def adder(*args):
216			return sum(args)
217
218			AdderMessage = Message('AdderMessage', [
219			('item_a', 'H'),
220			('item_b', 'B'),
221			('item_c', 'B'),
222			('item_d', 'B'),
223			('item_e', 'B'),
224			# Note, there is no item 'e' in the list of arguments
225			('function_data', 'I', {
226			(adder, 'item_a', 'item_b', 'item_c', 'item_d')
227			}, False),
228			])
229
230			# Test with incorrect result
231			test_data_2 = {
232			'item_a': 2,
233			'item_b': 5,
234			'item_c': 7,
235			'item_d': 4,
236			'item_e': 6,
237			'function_data': -1,
238			}
239
240			made = AdderMessage.make(test_data_2)
241			assert made.function_data == -1
242
243			def test_verifying_unpack(self):
244			def adder(*args):
245			return sum(args)
246
247			AdderMessage = Message('AdderMessage', [
248			('item_a', 'H'),
249			('item_b', 'B'),
250			('item_c', 'B'),
251			('item_d', 'B'),
252			('item_e', 'B'),
253			# Note, there is no item 'e' in the list of arguments
254			('function_data', 'I', {
255			(adder, 'item_a', 'item_b', 'item_c', 'item_d')
256			}),
257			])
258
259			# Test getting the correct result
260			test_data = {
261			'item_a': 2,
262			'item_b': 5,
263			'item_c': 7,
264			'item_d': 4,
265			'item_e': 6,
266			}
267
268			made = AdderMessage.make(test_data)
269			assert made.item_a == 2
270			assert made.item_b == 5
271
272			assert made.function_data == 2 + 5 + 7 + 4
273
274			# Check packing and unpacking
275			packed = AdderMessage.pack(test_data)
276			assert packed == b'\x02\x00\x05\x07\x04\x06\x12\x00\x00\x00'
277			assert packed == made.pack()
278
279			unpacked = AdderMessage.unpack(packed)
280			assert made == unpacked
281
282			# Now we modify the data we are going to unpack, and we should get an error
283			modified_packed = b'\x02\x00\x05\x07\x04\x06\x11\x11\x11\x11'
284
285			with pytest.raises(ValueError):
286			unpacked = AdderMessage.unpack(modified_packed)
287
288			AdderMessageFalse = Message('AdderMessageFalse', [
289			('item_a', 'H'),
290			('item_b', 'B'),
291			('item_c', 'B'),
292			('item_d', 'B'),
293			('item_e', 'B'),
294			# Note, there is no item 'e' in the list of arguments
295			('function_data', 'I', {
296			(adder, 'item_a', 'item_b', 'item_c', 'item_d')
297			}, False),
298			])
299
300			# Test getting the correct result
301			test_data = {
302			'item_a': 2,
303			'item_b': 5,
304			'item_c': 7,
305			'item_d': 4,
306			'item_e': 6,
307			}
308
309			made = AdderMessageFalse.make(test_data)
310			assert made.item_a == 2
311			assert made.item_b == 5
312
313			assert made.function_data == 2 + 5 + 7 + 4
314
315			# Check packing and unpacking
316			packed = AdderMessageFalse.pack(test_data)
317			assert packed == b'\x02\x00\x05\x07\x04\x06\x12\x00\x00\x00'
318			assert packed == made.pack()
319
320			unpacked = AdderMessageFalse.unpack(packed)
321			assert made == unpacked
322
323			# Now we modify the data we are going to unpack, and we should get an error
324			modified_packed = b'\x02\x00\x05\x07\x04\x06\x11\x11\x11\x11'
325
326			# This time it won't fail because we set False for this message
327			unpacked = AdderMessageFalse.unpack(modified_packed)
328			assert unpacked.item_a == 2
329

sprout42 / StarStruct

TestStarStruct.test_verifying_unpack() F last analyzed 2016-12-20 21:17 UTC

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TestStarStruct.test_verifying_unpack() F
last analyzed 2016-12-20 21:17 UTC