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# Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).
# Licensed under the Apache License, Version 2.0 (see LICENSE).
import os.path
import pytest
from pex.bin.pex import make_relative_to_root
from pex.orderedset import OrderedSet
from pex.pex_info import PexInfo
from pex.variables import ENV, Variables
def make_pex_info(requirements):
return PexInfo(info={'requirements': requirements})
def test_backwards_incompatible_pex_info():
# forwards compatibility
pi = make_pex_info(['hello'])
assert pi.requirements == OrderedSet(['hello'])
pi = make_pex_info(['hello==0.1', 'world==0.2'])
assert pi.requirements == OrderedSet(['hello==0.1', 'world==0.2'])
# malformed
with pytest.raises(ValueError):
make_pex_info('hello')
with pytest.raises(ValueError):
make_pex_info([('hello', False)])
# backwards compatibility
pi = make_pex_info([
['hello==0.1', False, None],
['world==0.2', False, None],
])
assert pi.requirements == OrderedSet(['hello==0.1', 'world==0.2'])
def assert_same_info(expected, actual):
assert expected.dump(sort_keys=True) == actual.dump(sort_keys=True)
def test_from_empty_env():
environ = Variables(environ={})
info = {}
assert_same_info(PexInfo(info=info), PexInfo.from_env(env=environ))
def test_make_relative():
with ENV.patch(PEX_ROOT='/pex_root'):
assert '/pex_root/interpreters' == make_relative_to_root('{pex_root}/interpreters')
#Verify the user can specify arbitrary absolute paths.
assert '/tmp/interpreters' == make_relative_to_root('/tmp/interpreters')
def test_from_env():
pex_root = os.path.realpath('/pex_root')
environ = dict(PEX_ROOT=pex_root,
PEX_MODULE='entry:point',
PEX_SCRIPT='script.sh',
PEX_FORCE_LOCAL='true',
PEX_INHERIT_PATH='prefer',
PEX_IGNORE_ERRORS='true',
PEX_ALWAYS_CACHE='true')
info = dict(pex_root=pex_root,
entry_point='entry:point',
script='script.sh',
zip_safe=False,
inherit_path=True,
ignore_errors=True,
always_write_cache=True)
assert_same_info(PexInfo(info=info), PexInfo.from_env(env=Variables(environ=environ)))
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