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import unittest
import os
from spack.environment import EnvironmentModifications, apply_environment_modifications
class EnvironmentTest(unittest.TestCase):
def setUp(self):
os.environ.clear()
os.environ['UNSET_ME'] = 'foo'
os.environ['EMPTY_PATH_LIST'] = ''
os.environ['PATH_LIST'] = '/path/second:/path/third'
os.environ['REMOVE_PATH_LIST'] = '/a/b:/duplicate:/a/c:/remove/this:/a/d:/duplicate/:/f/g'
def test_set_env(self):
env = EnvironmentModifications()
env.set_env('A', 'dummy value')
env.set_env('B', 3)
apply_environment_modifications(env)
self.assertEqual('dummy value', os.environ['A'])
self.assertEqual(str(3), os.environ['B'])
def test_unset_env(self):
env = EnvironmentModifications()
self.assertEqual('foo', os.environ['UNSET_ME'])
env.unset_env('UNSET_ME')
apply_environment_modifications(env)
self.assertRaises(KeyError, os.environ.__getitem__, 'UNSET_ME')
def test_path_manipulation(self):
env = EnvironmentModifications()
env.append_path('PATH_LIST', '/path/last')
env.prepend_path('PATH_LIST', '/path/first')
env.append_path('EMPTY_PATH_LIST', '/path/middle')
env.append_path('EMPTY_PATH_LIST', '/path/last')
env.prepend_path('EMPTY_PATH_LIST', '/path/first')
env.append_path('NEWLY_CREATED_PATH_LIST', '/path/middle')
env.append_path('NEWLY_CREATED_PATH_LIST', '/path/last')
env.prepend_path('NEWLY_CREATED_PATH_LIST', '/path/first')
env.remove_path('REMOVE_PATH_LIST', '/remove/this')
env.remove_path('REMOVE_PATH_LIST', '/duplicate/')
apply_environment_modifications(env)
self.assertEqual('/path/first:/path/second:/path/third:/path/last', os.environ['PATH_LIST'])
self.assertEqual('/path/first:/path/middle:/path/last', os.environ['EMPTY_PATH_LIST'])
self.assertEqual('/path/first:/path/middle:/path/last', os.environ['NEWLY_CREATED_PATH_LIST'])
self.assertEqual('/a/b:/a/c:/a/d:/f/g', os.environ['REMOVE_PATH_LIST'])
def test_extra_arguments(self):
env = EnvironmentModifications()
env.set_env('A', 'dummy value', who='Pkg1')
apply_environment_modifications(env)
self.assertEqual('dummy value', os.environ['A'])
def test_extend(self):
env = EnvironmentModifications()
env.set_env('A', 'dummy value')
env.set_env('B', 3)
copy_construct = EnvironmentModifications(env)
self.assertEqual(len(copy_construct), 2)
for x, y in zip(env, copy_construct):
self.assertIs(x, y)
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