Coverage for tests/test_findParentMapper.py: 48%

32 statements  

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1# This file is part of obs_base. 

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

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

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

12# (at your option) any later version. 

13# 

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

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

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

17# GNU General Public License for more details. 

18# 

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

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

21 

22import os 

23import shutil 

24import tempfile 

25import unittest 

26 

27import lsst.daf.persistence as dafPersist 

28import lsst.utils.tests 

29 

30ROOT = os.path.abspath(os.path.dirname(__file__)) 

31 

32 

33class TestFindParentMapperV1Butler(unittest.TestCase): 

34 """Test that in an 'old' Butler repository the mapper can be found in a 

35 parent repo via the _parent symlink. 

36 """ 

37 

38 def setUp(self): 

39 self.testDir = tempfile.mkdtemp(dir=ROOT, prefix="TestFindParentMapperV1Butler-") 

40 self.parentRepoDir = os.path.join(self.testDir, "parentRepo") 

41 os.makedirs(self.parentRepoDir) 

42 

43 # note: do not put a _mapper file in the parent here, it will be added 

44 # later when needed. 

45 

46 self.childRepoDir = os.path.join(self.testDir, "childRepo") 

47 os.makedirs(self.childRepoDir) 

48 os.symlink(self.parentRepoDir, os.path.join(self.childRepoDir, "_parent")) 

49 

50 def tearDown(self): 

51 if os.path.exists(self.testDir): 

52 shutil.rmtree(self.testDir) 

53 

54 def test(self): 

55 # put the mapper file in the parent repo, and see if the child repo can 

56 # find it via the _parent symlink. 

57 with open(os.path.join(self.parentRepoDir, "_mapper"), "w") as f: 

58 f.write("lsst.obs.base.test.CompositeMapper") 

59 

60 # this should not raise an error, no error indicates that the mapper 

61 # can not be found. 

62 dafPersist.Butler(root=self.childRepoDir) 

63 

64 def testNoMapper(self): 

65 # Since in this case the _mapper file does not exist in the parent 

66 # repo, this should raise an error indicating that the mapper can not 

67 # be found. 

68 with self.assertRaises(RuntimeError): 

69 dafPersist.Butler(self.childRepoDir, policyDir=self.testDir) 

70 

71 

72class MemoryTester(lsst.utils.tests.MemoryTestCase): 

73 pass 

74 

75 

76def setup_module(module): 

77 lsst.utils.tests.init() 

78 

79 

80if __name__ == "__main__": 80 ↛ 81line 80 didn't jump to line 81, because the condition on line 80 was never true

81 lsst.utils.tests.init() 

82 unittest.main()