Coverage for tests/test_preExecInit.py: 15%

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1# This file is part of ctrl_mpexec. 

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"""Simple unit test for PreExecInit class. 

29""" 

30 

31import contextlib 

32import shutil 

33import tempfile 

34import unittest 

35 

36from lsst.ctrl.mpexec import PreExecInit 

37from lsst.pipe.base.tests.simpleQGraph import AddTaskFactoryMock, makeSimpleQGraph 

38 

39 

40@contextlib.contextmanager 

41def temporaryDirectory(): 

42 """Context manager that creates and destroys temporary directory. 

43 

44 Difference from `tempfile.TemporaryDirectory` is that it ignores errors 

45 when deleting a directory, which may happen with some filesystems. 

46 """ 

47 tmpdir = tempfile.mkdtemp() 

48 yield tmpdir 

49 shutil.rmtree(tmpdir, ignore_errors=True) 

50 

51 

52class PreExecInitTestCase(unittest.TestCase): 

53 """A test case for PreExecInit""" 

54 

55 def test_saveInitOutputs(self): 

56 taskFactory = AddTaskFactoryMock() 

57 for extendRun in (False, True): 

58 with self.subTest(extendRun=extendRun): 

59 with temporaryDirectory() as tmpdir: 

60 butler, qgraph = makeSimpleQGraph(root=tmpdir) 

61 preExecInit = PreExecInit(butler=butler, taskFactory=taskFactory, extendRun=extendRun) 

62 preExecInit.saveInitOutputs(qgraph) 

63 

64 def test_saveInitOutputs_twice(self): 

65 taskFactory = AddTaskFactoryMock() 

66 for extendRun in (False, True): 

67 with self.subTest(extendRun=extendRun): 

68 with temporaryDirectory() as tmpdir: 

69 butler, qgraph = makeSimpleQGraph(root=tmpdir) 

70 preExecInit = PreExecInit(butler=butler, taskFactory=taskFactory, extendRun=extendRun) 

71 preExecInit.saveInitOutputs(qgraph) 

72 if extendRun: 

73 # will ignore this 

74 preExecInit.saveInitOutputs(qgraph) 

75 else: 

76 # Second time it will fail 

77 with self.assertRaises(Exception): 

78 preExecInit.saveInitOutputs(qgraph) 

79 

80 def test_saveConfigs(self): 

81 for extendRun in (False, True): 

82 with self.subTest(extendRun=extendRun): 

83 with temporaryDirectory() as tmpdir: 

84 butler, qgraph = makeSimpleQGraph(root=tmpdir) 

85 preExecInit = PreExecInit(butler=butler, taskFactory=None, extendRun=extendRun) 

86 preExecInit.saveConfigs(qgraph) 

87 

88 def test_saveConfigs_twice(self): 

89 for extendRun in (False, True): 

90 with self.subTest(extendRun=extendRun): 

91 with temporaryDirectory() as tmpdir: 

92 butler, qgraph = makeSimpleQGraph(root=tmpdir) 

93 preExecInit = PreExecInit(butler=butler, taskFactory=None, extendRun=extendRun) 

94 preExecInit.saveConfigs(qgraph) 

95 if extendRun: 

96 # will ignore this 

97 preExecInit.saveConfigs(qgraph) 

98 else: 

99 # Second time it will fail 

100 with self.assertRaises(Exception): 

101 preExecInit.saveConfigs(qgraph) 

102 

103 def test_savePackageVersions(self): 

104 for extendRun in (False, True): 

105 with self.subTest(extendRun=extendRun): 

106 with temporaryDirectory() as tmpdir: 

107 butler, qgraph = makeSimpleQGraph(root=tmpdir) 

108 preExecInit = PreExecInit(butler=butler, taskFactory=None, extendRun=extendRun) 

109 preExecInit.savePackageVersions(qgraph) 

110 

111 def test_savePackageVersions_twice(self): 

112 for extendRun in (False, True): 

113 with self.subTest(extendRun=extendRun): 

114 with temporaryDirectory() as tmpdir: 

115 butler, qgraph = makeSimpleQGraph(root=tmpdir) 

116 preExecInit = PreExecInit(butler=butler, taskFactory=None, extendRun=extendRun) 

117 preExecInit.savePackageVersions(qgraph) 

118 if extendRun: 

119 # If this is the same packages then it should not 

120 # attempt to save. 

121 preExecInit.savePackageVersions(qgraph) 

122 else: 

123 # second time it will fail 

124 with self.assertRaises(Exception): 

125 preExecInit.savePackageVersions(qgraph) 

126 

127 

128if __name__ == "__main__": 

129 unittest.main()