Coverage for tests/test_nonempty_mapping.py: 27%

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1# This file is part of daf_butler. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (https://www.lsst.org). 

6# See the COPYRIGHT file at the top-level directory of this distribution 

7# for details of code ownership. 

8# 

9# This software is dual licensed under the GNU General Public License and also 

10# under a 3-clause BSD license. Recipients may choose which of these licenses 

11# to use; please see the files gpl-3.0.txt and/or bsd_license.txt, 

12# respectively. If you choose the GPL option then the following text applies 

13# (but note that there is still no warranty even if you opt for BSD instead): 

14# 

15# This program is free software: you can redistribute it and/or modify 

16# it under the terms of the GNU General Public License as published by 

17# the Free Software Foundation, either version 3 of the License, or 

18# (at your option) any later version. 

19# 

20# This program is distributed in the hope that it will be useful, 

21# but WITHOUT ANY WARRANTY; without even the implied warranty of 

22# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

23# GNU General Public License for more details. 

24# 

25# You should have received a copy of the GNU General Public License 

26# along with this program. If not, see <https://www.gnu.org/licenses/>. 

27 

28 

29import unittest 

30 

31from lsst.daf.butler.nonempty_mapping import NonemptyMapping 

32 

33 

34class NonemptyMappingTestCase(unittest.TestCase): 

35 """Tests for `lsst.daf.butler.nonempty_mapping.NonemptyMapping`.""" 

36 

37 def test_nonempty_mapping(self) -> None: 

38 m = NonemptyMapping[str, list[int]](list) 

39 m["one"].append(1) 

40 m["zero"].extend([]) 

41 self.assertEqual(len(m), 1) 

42 self.assertEqual(dict(m), {"one": [1]}) 

43 self.assertEqual(m["zero"], []) 

44 self.assertIn("one", m) 

45 self.assertNotIn("zero", m) 

46 self.assertEqual(m.get("one"), [1]) 

47 self.assertEqual(m.get("zero"), None) 

48 self.assertEqual(m.get("zero", 42), 42) 

49 

50 

51if __name__ == "__main__": 

52 unittest.main()