def test__arg():
import random
from roslaunch.substitution_args import _arg, ArgException, SubstitutionException
ctx = {
'arg': {
'foo': '12345',
'bar': 'hello world',
'baz': 'sim',
'empty': '',
}
}
# test invalid
try:
_arg('$(arg)', 'arg', [], ctx)
assert False, "should have thrown"
except SubstitutionException:
pass
# test normal
tests = [
('12345', ('$(arg foo)', 'arg foo', ['foo'], ctx)),
('', ('$(arg empty)', 'arg empty', ['empty'], ctx)),
('sim', ('$(arg baz)', 'arg baz', ['baz'], ctx)),
# test with other args present, should only resolve match
('1234512345', ('$(arg foo)$(arg foo)', 'arg foo', ['foo'], ctx)),
('12345$(arg baz)', ('$(arg foo)$(arg baz)', 'arg foo', ['foo'], ctx)),
('$(arg foo)sim', ('$(arg foo)$(arg baz)', 'arg baz', ['baz'], ctx)),
# test double-resolve safe
('12345', ('12345', 'arg foo', ['foo'], ctx)),
]
for result, test in tests:
resolved, a, args, context = test
assert result == _arg(resolved, a, args, context)
# - test that all fail if ctx is not set
for result, test in tests:
resolved, a, args, context = test
try:
_arg(resolved, a, args, {})
assert False, "should have thrown"
except ArgException as e:
assert args[0] == str(e)
try:
_arg(resolved, a, args, {'arg': {}})
assert False, "should have thrown"
except ArgException as e:
assert args[0] == str(e)
def test__arg():
import random
from roslaunch.substitution_args import _arg, ArgException, SubstitutionException
ctx = { 'arg': {
'foo': '12345',
'bar': 'hello world',
'baz': 'sim',
'empty': '',
}
}
# test invalid
try:
_arg('$(arg)', 'arg', [], ctx)
assert False, "should have thrown"
except SubstitutionException:
pass
# test normal
tests = [
('12345', ('$(arg foo)', 'arg foo', ['foo'], ctx)),
('', ('$(arg empty)', 'arg empty', ['empty'], ctx)),
('sim', ('$(arg baz)', 'arg baz', ['baz'], ctx)),
# test with other args present, should only resolve match
('1234512345', ('$(arg foo)$(arg foo)', 'arg foo', ['foo'], ctx)),
('12345$(arg baz)', ('$(arg foo)$(arg baz)', 'arg foo', ['foo'], ctx)),
('$(arg foo)sim', ('$(arg foo)$(arg baz)', 'arg baz', ['baz'], ctx)),
# test double-resolve safe
('12345', ('12345', 'arg foo', ['foo'], ctx)),
]
for result, test in tests:
resolved, a, args, context = test
assert result == _arg(resolved, a, args, context)
# - test that all fail if ctx is not set
for result, test in tests:
resolved, a, args, context = test
try:
_arg(resolved, a, args, {})
assert False, "should have thrown"
except ArgException as e:
assert args[0] == str(e)
try:
_arg(resolved, a, args, {'arg': {}})
assert False, "should have thrown"
except ArgException as e:
assert args[0] == str(e)