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# Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).
# Licensed under the Apache License, Version 2.0 (see LICENSE).
import pytest
from pex.util import named_temporary_file
from pex.variables import Variables
def test_process_pydoc():
def thing():
# no pydoc
pass
assert Variables.process_pydoc(thing.__doc__) == ('Unknown', 'Unknown')
def other_thing():
"""Type
Properly
formatted
text.
"""
assert Variables.process_pydoc(other_thing.__doc__) == (
'Type', 'Properly formatted text.')
def test_iter_help():
for variable_name, variable_type, variable_text in Variables.iter_help():
assert variable_name.startswith('PEX_')
assert '\n' not in variable_type
assert '\n' not in variable_text
def test_pex_bool_variables():
Variables(environ={})._get_bool('NOT_HERE', default=False) is False
Variables(environ={})._get_bool('NOT_HERE', default=True) is True
for value in ('0', 'faLsE', 'false'):
for default in (True, False):
Variables(environ={'HERE': value})._get_bool('HERE', default=default) is False
for value in ('1', 'TrUe', 'true'):
for default in (True, False):
Variables(environ={'HERE': value})._get_bool('HERE', default=default) is True
with pytest.raises(SystemExit):
Variables(environ={'HERE': 'garbage'})._get_bool('HERE')
# end to end
assert Variables().PEX_ALWAYS_CACHE is False
assert Variables({'PEX_ALWAYS_CACHE': '1'}).PEX_ALWAYS_CACHE is True
def test_pex_string_variables():
Variables(environ={})._get_string('NOT_HERE') is None
Variables(environ={})._get_string('NOT_HERE', default='lolol') == 'lolol'
Variables(environ={'HERE': 'stuff'})._get_string('HERE') == 'stuff'
Variables(environ={'HERE': 'stuff'})._get_string('HERE', default='lolol') == 'stuff'
def test_pex_get_int():
assert Variables()._get_int('HELLO') is None
assert Variables()._get_int('HELLO', default=42) == 42
assert Variables(environ={'HELLO': 23})._get_int('HELLO') == 23
assert Variables(environ={'HELLO': 23})._get_int('HELLO', default=42) == 23
with pytest.raises(SystemExit):
assert Variables(environ={'HELLO': 'welp'})._get_int('HELLO')
def test_pex_vars_set():
v = Variables(environ={})
v.set('HELLO', '42')
assert v._get_int('HELLO') == 42
v.delete('HELLO')
assert v._get_int('HELLO') is None
def test_pex_get_kv():
v = Variables(environ={})
assert v._get_kv('HELLO') is None
assert v._get_kv('=42') is None
assert v._get_kv('TOO=MANY=COOKS') is None
assert v._get_kv('THIS=WORKS') == ['THIS', 'WORKS']
def test_pex_from_rc():
with named_temporary_file(mode='w') as pexrc:
pexrc.write('HELLO=42')
pexrc.flush()
v = Variables(rc=pexrc.name)
assert v._get_int('HELLO') == 42
def test_pexrc_precedence():
with named_temporary_file(mode='w') as pexrc:
pexrc.write('HELLO=FORTYTWO')
pexrc.flush()
v = Variables(rc=pexrc.name, environ={'HELLO': 42})
assert v._get_int('HELLO') == 42
def test_rc_ignore():
with named_temporary_file(mode='w') as pexrc:
pexrc.write('HELLO=FORTYTWO')
pexrc.flush()
v = Variables(rc=pexrc.name, environ={'PEX_IGNORE_RCFILES': 'True'})
assert 'HELLO' not in v._environ
def test_pex_vars_defaults_stripped():
v = Variables(environ={})
stripped = v.strip_defaults()
# bool
assert v.PEX_ALWAYS_CACHE is not None
assert stripped.PEX_ALWAYS_CACHE is None
# string
assert v.PEX_PATH is not None
assert stripped.PEX_PATH is None
# int
assert v.PEX_VERBOSE is not None
assert stripped.PEX_VERBOSE is None
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