Coverage for test/d7a/system_files/test_vid.py: 100%

24 statements  

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1# 

2# Copyright (c) 2015-2021 University of Antwerp, Aloxy NV. 

3# 

4# This file is part of pyd7a. 

5# See https://github.com/Sub-IoT/pyd7a for further info. 

6# 

7# Licensed under the Apache License, Version 2.0 (the "License"); 

8# you may not use this file except in compliance with the License. 

9# You may obtain a copy of the License at 

10# 

11# http://www.apache.org/licenses/LICENSE-2.0 

12# 

13# Unless required by applicable law or agreed to in writing, software 

14# distributed under the License is distributed on an "AS IS" BASIS, 

15# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

16# See the License for the specific language governing permissions and 

17# limitations under the License. 

18# 

19import unittest 

20 

21from bitstring import ConstBitStream 

22 

23from d7a.system_files.vid import VidFile 

24 

25class TestVidFile(unittest.TestCase): 

26 

27 def test_default_constructor(self): 

28 c = VidFile() 

29 self.assertEqual(c.vid, 0xFFFF) 

30 self.assertEqual(c.control, 0) 

31 

32 

33 def test_parsing(self): 

34 file_contents = [ 

35 0x05, 0x03, # VID 

36 0x65, # Control 

37 ] 

38 

39 config = VidFile.parse(ConstBitStream(bytes=file_contents)) 

40 self.assertEqual(config.vid, 0x0503) 

41 self.assertEqual(config.control, 0x65) 

42 

43 def test_byte_generation(self): 

44 bytes = bytearray(VidFile()) 

45 self.assertEqual(len(bytes), 3) 

46 self.assertEqual(bytes[0], 0xFF) 

47 self.assertEqual(bytes[1], 0xFF) 

48 self.assertEqual(bytes[2], 0) 

49 

50 bytes = bytearray(VidFile(vid=0x4536, control=0x12)) 

51 self.assertEqual(len(bytes), 3) 

52 self.assertEqual(bytes[0], 0x45) 

53 self.assertEqual(bytes[1], 0x36) 

54 self.assertEqual(bytes[2], 0x12)