1# Copyright 2021 The Pigweed Authors 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); you may not 4# use this file except in compliance with the License. You may obtain a copy of 5# the License at 6# 7# https://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12# License for the specific language governing permissions and limitations under 13# the License. 14"""Tests for the pw_log_tokenized packed metadata class.""" 15 16import unittest 17 18from pw_log_tokenized import Metadata 19 20 21class TestMetadata(unittest.TestCase): 22 """Tests extracting fields from a pw_log_tokenized packed metadata value.""" 23 24 def test_zero(self): 25 metadata = Metadata(0) 26 self.assertEqual(metadata.log_level, 0) 27 self.assertEqual(metadata.line, 0) 28 self.assertEqual(metadata.flags, 0) 29 self.assertEqual(metadata.module_token, 0) 30 31 def test_various(self): 32 metadata = Metadata( 33 0xABCD << 16 | 1 << 14 | 1234 << 3 | 5, 34 log_bits=3, 35 line_bits=11, 36 flag_bits=2, 37 module_bits=16, 38 ) 39 self.assertEqual(metadata.log_level, 5) 40 self.assertEqual(metadata.line, 1234) 41 self.assertEqual(metadata.flags, 1) 42 self.assertEqual(metadata.module_token, 0xABCD) 43 44 def test_max(self): 45 metadata = Metadata( 46 0xFFFFFFFF, log_bits=3, line_bits=11, flag_bits=2, module_bits=16 47 ) 48 self.assertEqual(metadata.log_level, 7) 49 self.assertEqual(metadata.line, 2047) 50 self.assertEqual(metadata.flags, 3) 51 self.assertEqual(metadata.module_token, 0xFFFF) 52 53 54if __name__ == '__main__': 55 unittest.main() 56