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# 

# LSST Data Management System 

# Copyright 2017 LSST Corporation. 

# 

# This product includes software developed by the 

# LSST Project (http://www.lsst.org/). 

# 

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

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

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

# (at your option) any later version. 

# 

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

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

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

# You should have received a copy of the LSST License Statement and 

# the GNU General Public License along with this program. If not, 

# see <http://www.lsstcorp.org/LegalNotices/>. 

# 

 

import os 

import unittest 

import lsst.daf.persistence as dp 

import lsst.utils.tests 

import shutil 

import tempfile 

 

try: 

FileType = file 

except NameError: 

from io import IOBase 

FileType = IOBase 

 

 

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

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

class GetParentFromSymlink(unittest.TestCase): 

"""A test case for getting the relative path to parent from a symlink in PosixStorage.""" 

 

def setUp(self): 

self.testDir = tempfile.mkdtemp(dir=ROOT, prefix='GetParentFromSymlink-') 

self.parentFolderPath = os.path.join(self.testDir, "theParent") 

self.childFolderPath = os.path.join(self.testDir, "theChild") 

self.parentlessFolderPath = os.path.join(self.testDir, "parentlessRepo") 

for p in (self.parentFolderPath, self.childFolderPath, self.parentlessFolderPath): 

os.makedirs(p) 

relpath = os.path.relpath(self.parentFolderPath, self.childFolderPath) 

os.symlink(relpath, os.path.join(self.childFolderPath, '_parent')) 

 

def tearDown(self): 

if os.path.exists(self.testDir): 

shutil.rmtree(self.testDir) 

 

def testV1RepoWithParen(self): 

parentPath = dp.PosixStorage.getParentSymlinkPath(self.childFolderPath) 

self.assertEqual(parentPath, os.path.relpath(self.parentFolderPath, self.childFolderPath)) 

 

def testV1RepoWithoutParent(self): 

parentPath = dp.PosixStorage.getParentSymlinkPath(self.parentlessFolderPath) 

self.assertEqual(parentPath, None) 

 

 

class TestRelativePath(unittest.TestCase): 

"""A test case for the PosixStorage.relativePath function.""" 

 

def setUp(self): 

self.testDir = tempfile.mkdtemp(dir=ROOT, prefix='TestRelativePath-') 

 

def tearDown(self): 

if os.path.exists(self.testDir): 

shutil.rmtree(self.testDir) 

 

def testRelativePath(self): 

"""Test that a relative path returns the correct relative path for 

1. relative inputs, 2. absolute inputs.""" 

abspathA = os.path.join(self.testDir, 'a') 

abspathB = os.path.join(self.testDir, 'b') 

os.makedirs(abspathA) 

os.makedirs(abspathB) 

# 1. 

relpathA = os.path.relpath(abspathA) 

relpathB = os.path.relpath(abspathB) 

relpathAtoB = dp.PosixStorage.relativePath(relpathA, relpathB) 

self.assertEqual('../b', relpathAtoB) 

# 2. 

relpathAtoB = dp.PosixStorage.relativePath(abspathA, abspathB) 

self.assertEqual('../b', relpathAtoB) 

 

 

class TestAbsolutePath(unittest.TestCase): 

"""A test case for the PosixStorage.absolutePath function.""" 

 

def setUp(self): 

self.testDir = tempfile.mkdtemp(dir=ROOT, prefix='TestAbsolutePath-') 

 

def tearDown(self): 

if os.path.exists(self.testDir): 

shutil.rmtree(self.testDir) 

 

def testAbsolutePath(self): 

"""Tests that given a path and a relative path, the correct aboslute 

path to the relative path is returned.""" 

abspathA = os.path.join(self.testDir, 'a') 

abspathB = os.path.join(self.testDir, 'b') 

os.makedirs(abspathA) 

os.makedirs(abspathB) 

relpathA = os.path.relpath(abspathA) 

self.assertEqual(abspathB, 

dp.PosixStorage.absolutePath(abspathA, '../b')) 

self.assertEqual(abspathB, 

dp.PosixStorage.absolutePath(relpathA, '../b')) 

 

 

class TestGetLocalFile(unittest.TestCase): 

"""A test case for the PosixStorage.getLocalFile function.""" 

 

def setUp(self): 

self.testDir = tempfile.mkdtemp(dir=ROOT, prefix='TestGetLocalFile-') 

 

def tearDown(self): 

if os.path.exists(self.testDir): 

shutil.rmtree(self.testDir) 

 

def testAbsolutePath(self): 

"""Tests that GetLocalFile returns a file when it exists and returns 

None when it does not exist.""" 

storage = dp.PosixStorage(self.testDir, create=True) 

self.assertIsNone(storage.getLocalFile('foo.txt')) 

with open(os.path.join(self.testDir, 'foo.txt'), 'w') as f: 

f.write('foobarbaz') 

del f 

f = storage.getLocalFile('foo.txt') 

self.assertIsInstance(f, FileType) 

self.assertEqual(f.read(), 'foobarbaz') 

f.close() 

 

 

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

pass 

 

 

149 ↛ 150line 149 didn't jump to line 150, because the condition on line 149 was never trueif __name__ == '__main__': 

lsst.utils.tests.init() 

unittest.main()